Spatial Stream Segregation by Cats

Abstract

Listeners can perceive interleaved sequences of sounds from two or more sources as segregated streams. In humans, physical separation of sound sources is a major factor enabling such stream segregation. Here, we examine spatial stream segregation with a psychophysical measure in domestic cats. Cats depressed a pedal to initiate a target sequence of brief sound bursts in a particular rhythm and then released the pedal when the rhythm changed. The target bursts were interleaved with a competing sequence of bursts that could differ in source location but otherwise were identical to the target bursts. This task was possible only when the sources were heard as segregated streams. When the sound bursts had broad spectra, cats could detect the rhythm change when target and competing sources were separated by as little as 9.4°. Essentially equal levels of performance were observed when frequencies were restricted to a high, 4-to-25-kHz, band in which the principal spatial cues presumably were related to sound levels. When the stimulus band was restricted from 0.4 to 1.6 kHz, leaving interaural time differences as the principal spatial cue, performance was severely degraded. The frequency sensitivity of cats in this task contrasts with that of humans, who show better spatial stream segregation with low- than with high-frequency sounds. Possible explanations for the species difference includes the smaller interaural delays available to cats due to smaller sizes of their heads and the potentially greater sound-level cues available due to the cat’s frontally directed pinnae and higher audible frequency range.

from #Audiology via xlomafota13 on Inoreader http://ift.tt/1MeKrQ5
via IFTTT

In-shoe plantar pressure distribution and lower extremity muscle activity patterns of backward compared to forward running on a treadmill

Publication date: Available online 18 March 2016
Source:Gait & Posture
Author(s): Thorsten Sterzing, Clivia Frommhold, Dieter Rosenbaum
ObjectiveBackward locomotion in humans occurs during leisure, rehabilitation, and competitive sports. Little is known about its general biomechanical characteristics and how it affects lower extremity loading as well as muscle coordination. Thus, the purpose of this research was to analyze in-shoe plantar pressure patterns and lower extremity muscle activity patterns for backward compared to forward running.MethodsOn a treadmill, nineteen runners performed forward running at their individually preferred speed, followed by backward running at 70% of their self-selected forward speed. In-shoe plantar pressures of nine foot regions and muscular activity of nine lower extremity muscles were recorded simultaneously over a one-minute interval. Backward and forward running variables were averaged over the accumulated steps and compared with Wilcoxon-signed rank tests (p<0.05).ResultsFor backward compared to forward running, in-shoe plantar pressure distribution showed a load increase under metatarsal heads I and II, as well as under the medial midfoot. This was indicated by higher maximum forces and peak pressures, and by longer contact times. Muscle activity showed significantly higher mean amplitudes during backward running in the semitendinosus, rectus femoris, vastus lateralis, and gluteus medius during stance, and in the rectus femoris during swing phase, while significantly lower mean amplitudes were observed in the tibialis anterior during swing phase.ConclusionObservations indicate plantar foot loading and muscle activity characteristics that are specific for the running direction. Thus, backward running may be used on purpose for certain rehabilitation tasks, aiming to strengthen respective lower extremity muscles. Furthermore, the findings are relevant for sport specific backward locomotion training. Finally, results provide an initial baseline for innovative athletic footwear development aiming to increase comfort and performance during backward running.

Graphical abstract

from #Audiology via ola Kala on Inoreader http://ift.tt/1VleDLy
via IFTTT

Biomechanical strategies implemented to compensate for mild leg length discrepancy during gait

Publication date: Available online 18 March 2016
Source:Gait & Posture
Author(s): Renan A. Resende, Renata N. Kirkwood, Kevin J. Deluzio, Silvia Cabral, Sérgio T. Fonseca
Although mild leg length discrepancy is related to lower limb injuries, there is no consensus regarding its effects on the biomechanics of the lower limbs during gait. Biomechanical data of 19 healthy participants were collected while they walked under different conditions as described: (1) control condition - wearing flat thick sandals; (2) short limb condition - wearing a flat thick sandal on the left and a flat thin sandal on the right foot; (3) long limb condition: wearing flat thin sandal on the left and flat thick sandal on the right foot. The thick and thin sandals had 1.45cm of mean thickness difference. The right lower limb data were analyzed for all conditions. Ankle, knee, hip and pelvis kinematics and internal moments were measured with a motion capture system and six force platforms. Principal component analysis was used to compare differences between conditions. The scores of the principal components were compared between conditions using one-way repeated measures ANOVA. Twelve gait variables were different between conditions: rearfoot dorsiflexion and inversion (p<0.001); ankle dorsiflexion and inversion moments (p<0.001); knee flexion angle and moment (p<0.001); knee adduction moment (p<0.001); hip flexion angle and moment (p<0.001); hip adduction angle (p=0.001) and moment (p=0.022); and pelvic ipsilateral drop (p<0.001). Mild leg length discrepancy caused compensatory changes during gait, apparently to equalize the functional length of the lower limbs. However, these strategies did not fully succeed, since both short and long limb conditions affected pelvic motion in the frontal plane. These results suggest that mild leg length discrepancy should not be overlooked in clinical settings.



from #Audiology via ola Kala on Inoreader http://ift.tt/1VleBDk
via IFTTT

In-shoe plantar pressure distribution and lower extremity muscle activity patterns of backward compared to forward running on a treadmill

Publication date: Available online 18 March 2016
Source:Gait & Posture
Author(s): Thorsten Sterzing, Clivia Frommhold, Dieter Rosenbaum
ObjectiveBackward locomotion in humans occurs during leisure, rehabilitation, and competitive sports. Little is known about its general biomechanical characteristics and how it affects lower extremity loading as well as muscle coordination. Thus, the purpose of this research was to analyze in-shoe plantar pressure patterns and lower extremity muscle activity patterns for backward compared to forward running.MethodsOn a treadmill, nineteen runners performed forward running at their individually preferred speed, followed by backward running at 70% of their self-selected forward speed. In-shoe plantar pressures of nine foot regions and muscular activity of nine lower extremity muscles were recorded simultaneously over a one-minute interval. Backward and forward running variables were averaged over the accumulated steps and compared with Wilcoxon-signed rank tests (p<0.05).ResultsFor backward compared to forward running, in-shoe plantar pressure distribution showed a load increase under metatarsal heads I and II, as well as under the medial midfoot. This was indicated by higher maximum forces and peak pressures, and by longer contact times. Muscle activity showed significantly higher mean amplitudes during backward running in the semitendinosus, rectus femoris, vastus lateralis, and gluteus medius during stance, and in the rectus femoris during swing phase, while significantly lower mean amplitudes were observed in the tibialis anterior during swing phase.ConclusionObservations indicate plantar foot loading and muscle activity characteristics that are specific for the running direction. Thus, backward running may be used on purpose for certain rehabilitation tasks, aiming to strengthen respective lower extremity muscles. Furthermore, the findings are relevant for sport specific backward locomotion training. Finally, results provide an initial baseline for innovative athletic footwear development aiming to increase comfort and performance during backward running.

Graphical abstract

from #Audiology via ola Kala on Inoreader http://ift.tt/1VleDLy
via IFTTT

Biomechanical strategies implemented to compensate for mild leg length discrepancy during gait

Publication date: Available online 18 March 2016
Source:Gait & Posture
Author(s): Renan A. Resende, Renata N. Kirkwood, Kevin J. Deluzio, Silvia Cabral, Sérgio T. Fonseca
Although mild leg length discrepancy is related to lower limb injuries, there is no consensus regarding its effects on the biomechanics of the lower limbs during gait. Biomechanical data of 19 healthy participants were collected while they walked under different conditions as described: (1) control condition - wearing flat thick sandals; (2) short limb condition - wearing a flat thick sandal on the left and a flat thin sandal on the right foot; (3) long limb condition: wearing flat thin sandal on the left and flat thick sandal on the right foot. The thick and thin sandals had 1.45cm of mean thickness difference. The right lower limb data were analyzed for all conditions. Ankle, knee, hip and pelvis kinematics and internal moments were measured with a motion capture system and six force platforms. Principal component analysis was used to compare differences between conditions. The scores of the principal components were compared between conditions using one-way repeated measures ANOVA. Twelve gait variables were different between conditions: rearfoot dorsiflexion and inversion (p<0.001); ankle dorsiflexion and inversion moments (p<0.001); knee flexion angle and moment (p<0.001); knee adduction moment (p<0.001); hip flexion angle and moment (p<0.001); hip adduction angle (p=0.001) and moment (p=0.022); and pelvic ipsilateral drop (p<0.001). Mild leg length discrepancy caused compensatory changes during gait, apparently to equalize the functional length of the lower limbs. However, these strategies did not fully succeed, since both short and long limb conditions affected pelvic motion in the frontal plane. These results suggest that mild leg length discrepancy should not be overlooked in clinical settings.



from #Audiology via ola Kala on Inoreader http://ift.tt/1VleBDk
via IFTTT

In-shoe plantar pressure distribution and lower extremity muscle activity patterns of backward compared to forward running on a treadmill

Publication date: Available online 18 March 2016
Source:Gait & Posture
Author(s): Thorsten Sterzing, Clivia Frommhold, Dieter Rosenbaum
ObjectiveBackward locomotion in humans occurs during leisure, rehabilitation, and competitive sports. Little is known about its general biomechanical characteristics and how it affects lower extremity loading as well as muscle coordination. Thus, the purpose of this research was to analyze in-shoe plantar pressure patterns and lower extremity muscle activity patterns for backward compared to forward running.MethodsOn a treadmill, nineteen runners performed forward running at their individually preferred speed, followed by backward running at 70% of their self-selected forward speed. In-shoe plantar pressures of nine foot regions and muscular activity of nine lower extremity muscles were recorded simultaneously over a one-minute interval. Backward and forward running variables were averaged over the accumulated steps and compared with Wilcoxon-signed rank tests (p<0.05).ResultsFor backward compared to forward running, in-shoe plantar pressure distribution showed a load increase under metatarsal heads I and II, as well as under the medial midfoot. This was indicated by higher maximum forces and peak pressures, and by longer contact times. Muscle activity showed significantly higher mean amplitudes during backward running in the semitendinosus, rectus femoris, vastus lateralis, and gluteus medius during stance, and in the rectus femoris during swing phase, while significantly lower mean amplitudes were observed in the tibialis anterior during swing phase.ConclusionObservations indicate plantar foot loading and muscle activity characteristics that are specific for the running direction. Thus, backward running may be used on purpose for certain rehabilitation tasks, aiming to strengthen respective lower extremity muscles. Furthermore, the findings are relevant for sport specific backward locomotion training. Finally, results provide an initial baseline for innovative athletic footwear development aiming to increase comfort and performance during backward running.

Graphical abstract

from #Audiology via xlomafota13 on Inoreader http://ift.tt/1VleDLy
via IFTTT

Biomechanical strategies implemented to compensate for mild leg length discrepancy during gait

Publication date: Available online 18 March 2016
Source:Gait & Posture
Author(s): Renan A. Resende, Renata N. Kirkwood, Kevin J. Deluzio, Silvia Cabral, Sérgio T. Fonseca
Although mild leg length discrepancy is related to lower limb injuries, there is no consensus regarding its effects on the biomechanics of the lower limbs during gait. Biomechanical data of 19 healthy participants were collected while they walked under different conditions as described: (1) control condition - wearing flat thick sandals; (2) short limb condition - wearing a flat thick sandal on the left and a flat thin sandal on the right foot; (3) long limb condition: wearing flat thin sandal on the left and flat thick sandal on the right foot. The thick and thin sandals had 1.45cm of mean thickness difference. The right lower limb data were analyzed for all conditions. Ankle, knee, hip and pelvis kinematics and internal moments were measured with a motion capture system and six force platforms. Principal component analysis was used to compare differences between conditions. The scores of the principal components were compared between conditions using one-way repeated measures ANOVA. Twelve gait variables were different between conditions: rearfoot dorsiflexion and inversion (p<0.001); ankle dorsiflexion and inversion moments (p<0.001); knee flexion angle and moment (p<0.001); knee adduction moment (p<0.001); hip flexion angle and moment (p<0.001); hip adduction angle (p=0.001) and moment (p=0.022); and pelvic ipsilateral drop (p<0.001). Mild leg length discrepancy caused compensatory changes during gait, apparently to equalize the functional length of the lower limbs. However, these strategies did not fully succeed, since both short and long limb conditions affected pelvic motion in the frontal plane. These results suggest that mild leg length discrepancy should not be overlooked in clinical settings.



from #Audiology via xlomafota13 on Inoreader http://ift.tt/1VleBDk
via IFTTT

Phoneme and Word Scoring in Speech-in-Noise Audiometry

Purpose

Understanding speech in background noise is difficult for many individuals; however, time constraints have limited its inclusion in the clinical audiology assessment battery. Phoneme scoring of words has been suggested as a method of reducing test time and variability. The purposes of this study were to establish a phoneme scoring rubric and use it in testing phoneme and word perception in noise in older individuals and individuals with hearing impairment.

Method

Words were presented to 3 participant groups at 80 dB in speech-shaped noise at 7 signal-to-noise ratios (−10 to 35 dB). Responses were scored for words and phonemes correct.

Results

It was not surprising to find that phoneme scores were up to about 30% better than word scores. Word scoring resulted in larger hearing loss effect sizes than phoneme scoring, whereas scoring method did not significantly modify age effect sizes. There were significant effects of hearing loss and some limited effects of age; age effect sizes of about 3 dB and hearing loss effect sizes of more than 10 dB were found.

Conclusion

Hearing loss is the major factor affecting word and phoneme recognition with a subtle contribution of age. Phoneme scoring may provide several advantages over word scoring. A set of recommended phoneme scoring guidelines is provided.

from #Audiology via ola Kala on Inoreader http://ift.tt/1RrJOPj
via IFTTT

40-Hz Sinusoidal Auditory Steady-State Response and Tone Burst Auditory Brainstem Response Using a Kalman Filter to Determine Thresholds Pre- and Post-Myringotomy With Grommet Tube in Children With Mild, Low-Frequency Conductive Hearing Loss

Purpose

Accurate estimation of mild, low-frequency hearing loss is difficult in young children. This study aimed to determine the accuracy of 40-Hz sinusoidal auditory steady-state response (sASSR) compared with tone burst auditory brainstem response (TB-ABR) to detect mild, low-frequency hearing loss in children with otitis media with effusion and to measure postoperative thresholds.

Methods

Thresholds at 500 and 4000 Hz were measured behaviorally and electrophysiologically using TB-ABR and 40-Hz sASSR with a Kalman filter in 26 children with otitis media with effusion. Recording was conducted preoperatively and postoperatively while children were actively awake. Repeated measures mixed analyses of variance were conducted to determine effects among measures and the two test frequencies.

Results

Both 40-Hz sASSR and TB-ABR accurately detected preoperative and postoperative thresholds and were within 5–10 dB of the behavioral thresholds at 4000 Hz. At 500 Hz, the mean 40-Hz sASSR threshold was only 5 dB above the behavioral thresholds and 18 dB better than the 500-Hz ABR threshold. Positive correlations were found but not between 40-sASSR and TB-ABR at 500 Hz. Also, the interrater judgment of the response was better for sASSR (89%) than TB-ABR (83%).

Conclusion

The 40-Hz sASSR is more accurate than TB-ABR in determining a mild, low-frequency threshold.

from #Audiology via ola Kala on Inoreader http://ift.tt/1SZeRHG
via IFTTT

Phoneme and Word Scoring in Speech-in-Noise Audiometry

Purpose

Understanding speech in background noise is difficult for many individuals; however, time constraints have limited its inclusion in the clinical audiology assessment battery. Phoneme scoring of words has been suggested as a method of reducing test time and variability. The purposes of this study were to establish a phoneme scoring rubric and use it in testing phoneme and word perception in noise in older individuals and individuals with hearing impairment.

Method

Words were presented to 3 participant groups at 80 dB in speech-shaped noise at 7 signal-to-noise ratios (−10 to 35 dB). Responses were scored for words and phonemes correct.

Results

It was not surprising to find that phoneme scores were up to about 30% better than word scores. Word scoring resulted in larger hearing loss effect sizes than phoneme scoring, whereas scoring method did not significantly modify age effect sizes. There were significant effects of hearing loss and some limited effects of age; age effect sizes of about 3 dB and hearing loss effect sizes of more than 10 dB were found.

Conclusion

Hearing loss is the major factor affecting word and phoneme recognition with a subtle contribution of age. Phoneme scoring may provide several advantages over word scoring. A set of recommended phoneme scoring guidelines is provided.

from #Audiology via ola Kala on Inoreader http://ift.tt/1RrJOPj
via IFTTT

40-Hz Sinusoidal Auditory Steady-State Response and Tone Burst Auditory Brainstem Response Using a Kalman Filter to Determine Thresholds Pre- and Post-Myringotomy With Grommet Tube in Children With Mild, Low-Frequency Conductive Hearing Loss

Purpose

Accurate estimation of mild, low-frequency hearing loss is difficult in young children. This study aimed to determine the accuracy of 40-Hz sinusoidal auditory steady-state response (sASSR) compared with tone burst auditory brainstem response (TB-ABR) to detect mild, low-frequency hearing loss in children with otitis media with effusion and to measure postoperative thresholds.

Methods

Thresholds at 500 and 4000 Hz were measured behaviorally and electrophysiologically using TB-ABR and 40-Hz sASSR with a Kalman filter in 26 children with otitis media with effusion. Recording was conducted preoperatively and postoperatively while children were actively awake. Repeated measures mixed analyses of variance were conducted to determine effects among measures and the two test frequencies.

Results

Both 40-Hz sASSR and TB-ABR accurately detected preoperative and postoperative thresholds and were within 5–10 dB of the behavioral thresholds at 4000 Hz. At 500 Hz, the mean 40-Hz sASSR threshold was only 5 dB above the behavioral thresholds and 18 dB better than the 500-Hz ABR threshold. Positive correlations were found but not between 40-sASSR and TB-ABR at 500 Hz. Also, the interrater judgment of the response was better for sASSR (89%) than TB-ABR (83%).

Conclusion

The 40-Hz sASSR is more accurate than TB-ABR in determining a mild, low-frequency threshold.

from #Audiology via ola Kala on Inoreader http://ift.tt/1SZeRHG
via IFTTT

Phoneme and Word Scoring in Speech-in-Noise Audiometry

Purpose

Understanding speech in background noise is difficult for many individuals; however, time constraints have limited its inclusion in the clinical audiology assessment battery. Phoneme scoring of words has been suggested as a method of reducing test time and variability. The purposes of this study were to establish a phoneme scoring rubric and use it in testing phoneme and word perception in noise in older individuals and individuals with hearing impairment.

Method

Words were presented to 3 participant groups at 80 dB in speech-shaped noise at 7 signal-to-noise ratios (−10 to 35 dB). Responses were scored for words and phonemes correct.

Results

It was not surprising to find that phoneme scores were up to about 30% better than word scores. Word scoring resulted in larger hearing loss effect sizes than phoneme scoring, whereas scoring method did not significantly modify age effect sizes. There were significant effects of hearing loss and some limited effects of age; age effect sizes of about 3 dB and hearing loss effect sizes of more than 10 dB were found.

Conclusion

Hearing loss is the major factor affecting word and phoneme recognition with a subtle contribution of age. Phoneme scoring may provide several advantages over word scoring. A set of recommended phoneme scoring guidelines is provided.

from #Audiology via xlomafota13 on Inoreader http://ift.tt/1RrJOPj
via IFTTT

40-Hz Sinusoidal Auditory Steady-State Response and Tone Burst Auditory Brainstem Response Using a Kalman Filter to Determine Thresholds Pre- and Post-Myringotomy With Grommet Tube in Children With Mild, Low-Frequency Conductive Hearing Loss

Purpose

Accurate estimation of mild, low-frequency hearing loss is difficult in young children. This study aimed to determine the accuracy of 40-Hz sinusoidal auditory steady-state response (sASSR) compared with tone burst auditory brainstem response (TB-ABR) to detect mild, low-frequency hearing loss in children with otitis media with effusion and to measure postoperative thresholds.

Methods

Thresholds at 500 and 4000 Hz were measured behaviorally and electrophysiologically using TB-ABR and 40-Hz sASSR with a Kalman filter in 26 children with otitis media with effusion. Recording was conducted preoperatively and postoperatively while children were actively awake. Repeated measures mixed analyses of variance were conducted to determine effects among measures and the two test frequencies.

Results

Both 40-Hz sASSR and TB-ABR accurately detected preoperative and postoperative thresholds and were within 5–10 dB of the behavioral thresholds at 4000 Hz. At 500 Hz, the mean 40-Hz sASSR threshold was only 5 dB above the behavioral thresholds and 18 dB better than the 500-Hz ABR threshold. Positive correlations were found but not between 40-sASSR and TB-ABR at 500 Hz. Also, the interrater judgment of the response was better for sASSR (89%) than TB-ABR (83%).

Conclusion

The 40-Hz sASSR is more accurate than TB-ABR in determining a mild, low-frequency threshold.

from #Audiology via xlomafota13 on Inoreader http://ift.tt/1SZeRHG
via IFTTT

Inherent envelope fluctuations in forward maskers: Effects of masker-probe delay for listeners with normal and impaired hearinga)

Forward-masked thresholds increase as the magnitude of inherent masker envelope fluctuations increase for both normal-hearing (NH) and hearing-impaired (HI) adults for a short masker-probe delay (25 ms). The slope of the recovery from forward masking is shallower for HI than for NH listeners due to reduced cochlear nonlinearities. However, effects of hearing loss on additional masking due to inherent envelope fluctuations across masker-probe delays remain unknown. The current study assessed effects of hearing loss on the slope and amount of recovery from forward maskers that varied in inherent envelope fluctuations. Forward-masked thresholds were measured at 2000 and 4000 Hz, for masker-probe delays of 25, 50, and 75 ms, for NH and HI adults. Four maskers at each center frequency varied in inherent envelope fluctuations: Gaussian noise (GN) or low-fluctuation noise (LFN), with 1 or 1/3 equivalent rectangular bandwidths (ERBs). Results suggested that slopes of recovery from forward masking were shallower for HI than for NH listeners regardless of masker fluctuations. Additional masking due to inherent envelope fluctuations was greater for HI than for NH listeners at longer masker-probe delays, suggesting that inherent envelope fluctuations are more disruptive for HI than for NH listeners for a longer time course

from #Audiology via xlomafota13 on Inoreader http://ift.tt/1pQtzFp
via IFTTT

Attitudes of Saudi parents with a deaf child towards prenatal diagnosis and termination of pregnancy.

Related Articles

Attitudes of Saudi parents with a deaf child towards prenatal diagnosis and termination of pregnancy.

Prenat Diagn. 2014 Feb;34(2):153-8

Authors: Alsulaiman A, Mousa A, Kondkar AA, Abu-Amero KK

Abstract
OBJECTIVE: The aim of this study was to assess the attitudes of Muslim parents from Saudi Arabia with a deaf child towards prenatal diagnosis (PND) and termination of pregnancy (TOP) for deafness and 29 other genetic and medical conditions.
METHODS: A questionnaire mainly focused on parent's attitude toward PND and TOP for 30 different hypothetical scenarios for a series of genetic, non-genetic and non-medical conditions was completed by 70 Saudi parents with a deaf child. The results were compared and scored, and parents' comments were noted.
RESULTS: The attitude for PND was favorable (81.4%) and was influenced by the severity of the condition among men. Among women, it was influenced by cultural considerations. For TOP, average acceptance rate (25.2%) was lower than for PND. Attitudes toward TOP were fairly similar for men and women, as both groups would consider TOP for Alzheimer disease, cleft lip and palate, and cystic fibrosis. In addition, women also ranked high deafness and thalassemia for consideration of TOP. Acceptance for TOP was not influenced by gender, income, education level, number of children, or partner attending clinic.
CONCLUSION: In the Saudi society, cultural consideration influences attitudes towards PND and TOP rather than the severity of the condition.

PMID: 24806347 [PubMed - indexed for MEDLINE]

from #Audiology via xlomafota13 on Inoreader http://ift.tt/22rpply
via IFTTT

Utility of bilateral acoustic hearing in combination with electrical stimulation provided by the cochlear implant.

Utility of bilateral acoustic hearing in combination with electrical stimulation provided by the cochlear implant.

Int J Audiol. 2016 Mar 17;:1-8

Authors: Plant K, Babic L

Abstract
OBJECTIVE: The aim of the study was to quantify the benefit provided by having access to amplified acoustic hearing in the implanted ear for use in combination with contralateral acoustic hearing and the electrical stimulation provided by the cochlear implant.
DESIGN: Measures of spatial and non-spatial hearing abilities were obtained to compare performance obtained with different configurations of acoustic hearing in combination with electrical stimulation. In the combined listening condition participants had access to bilateral acoustic hearing whereas the bimodal condition used acoustic hearing contralateral to the implanted ear only. Experience was provided with each of the listening conditions using a repeated-measures A-B-B-A experimental design.
STUDY SAMPLE: Sixteen post-linguistically hearing-impaired adults participated in the study.
RESULTS: Group mean benefit was obtained with use of the combined mode on measures of speech recognition in coincident speech in noise, localization ability, subjective ratings of real-world benefit, and musical sound quality ratings.
CONCLUSIONS: Access to bilateral acoustic hearing after cochlear implantation provides significant benefit on a range of functional measures.

PMID: 26987051 [PubMed - as supplied by publisher]

from #Audiology via ola Kala on Inoreader http://ift.tt/1LuxKkh
via IFTTT

Utility of bilateral acoustic hearing in combination with electrical stimulation provided by the cochlear implant.

Utility of bilateral acoustic hearing in combination with electrical stimulation provided by the cochlear implant.

Int J Audiol. 2016 Mar 17;:1-8

Authors: Plant K, Babic L

Abstract
OBJECTIVE: The aim of the study was to quantify the benefit provided by having access to amplified acoustic hearing in the implanted ear for use in combination with contralateral acoustic hearing and the electrical stimulation provided by the cochlear implant.
DESIGN: Measures of spatial and non-spatial hearing abilities were obtained to compare performance obtained with different configurations of acoustic hearing in combination with electrical stimulation. In the combined listening condition participants had access to bilateral acoustic hearing whereas the bimodal condition used acoustic hearing contralateral to the implanted ear only. Experience was provided with each of the listening conditions using a repeated-measures A-B-B-A experimental design.
STUDY SAMPLE: Sixteen post-linguistically hearing-impaired adults participated in the study.
RESULTS: Group mean benefit was obtained with use of the combined mode on measures of speech recognition in coincident speech in noise, localization ability, subjective ratings of real-world benefit, and musical sound quality ratings.
CONCLUSIONS: Access to bilateral acoustic hearing after cochlear implantation provides significant benefit on a range of functional measures.

PMID: 26987051 [PubMed - as supplied by publisher]

from #Audiology via ola Kala on Inoreader http://ift.tt/1LuxKkh
via IFTTT

Utility of bilateral acoustic hearing in combination with electrical stimulation provided by the cochlear implant.

Utility of bilateral acoustic hearing in combination with electrical stimulation provided by the cochlear implant.

Int J Audiol. 2016 Mar 17;:1-8

Authors: Plant K, Babic L

Abstract
OBJECTIVE: The aim of the study was to quantify the benefit provided by having access to amplified acoustic hearing in the implanted ear for use in combination with contralateral acoustic hearing and the electrical stimulation provided by the cochlear implant.
DESIGN: Measures of spatial and non-spatial hearing abilities were obtained to compare performance obtained with different configurations of acoustic hearing in combination with electrical stimulation. In the combined listening condition participants had access to bilateral acoustic hearing whereas the bimodal condition used acoustic hearing contralateral to the implanted ear only. Experience was provided with each of the listening conditions using a repeated-measures A-B-B-A experimental design.
STUDY SAMPLE: Sixteen post-linguistically hearing-impaired adults participated in the study.
RESULTS: Group mean benefit was obtained with use of the combined mode on measures of speech recognition in coincident speech in noise, localization ability, subjective ratings of real-world benefit, and musical sound quality ratings.
CONCLUSIONS: Access to bilateral acoustic hearing after cochlear implantation provides significant benefit on a range of functional measures.

PMID: 26987051 [PubMed - as supplied by publisher]

from #Audiology via ola Kala on Inoreader http://ift.tt/1LuxKkh
via IFTTT

Utility of bilateral acoustic hearing in combination with electrical stimulation provided by the cochlear implant.

Utility of bilateral acoustic hearing in combination with electrical stimulation provided by the cochlear implant.

Int J Audiol. 2016 Mar 17;:1-8

Authors: Plant K, Babic L

Abstract
OBJECTIVE: The aim of the study was to quantify the benefit provided by having access to amplified acoustic hearing in the implanted ear for use in combination with contralateral acoustic hearing and the electrical stimulation provided by the cochlear implant.
DESIGN: Measures of spatial and non-spatial hearing abilities were obtained to compare performance obtained with different configurations of acoustic hearing in combination with electrical stimulation. In the combined listening condition participants had access to bilateral acoustic hearing whereas the bimodal condition used acoustic hearing contralateral to the implanted ear only. Experience was provided with each of the listening conditions using a repeated-measures A-B-B-A experimental design.
STUDY SAMPLE: Sixteen post-linguistically hearing-impaired adults participated in the study.
RESULTS: Group mean benefit was obtained with use of the combined mode on measures of speech recognition in coincident speech in noise, localization ability, subjective ratings of real-world benefit, and musical sound quality ratings.
CONCLUSIONS: Access to bilateral acoustic hearing after cochlear implantation provides significant benefit on a range of functional measures.

PMID: 26987051 [PubMed - as supplied by publisher]

from #Audiology via ola Kala on Inoreader http://ift.tt/1LuxKkh
via IFTTT

Hear the World Announces New Fellowship Recipient

The Hear the World Foundation awarded Sarah Webster as its Judith Gravel Fellowship in Pediatric Audiology recipient for 2016-2017.

Ms. Webster is a fourth-year AuD student at the University of North Carolina (UNC) at Chapel Hill, and will complete the fellowship in the Department of Otolaryngology at UNC Chapel Hill. She has a special interest in the delivery of pediatric audiology services to Spanish-speaking families and is focusing her Leadership Education in Neurodevelopmental and Related Disabilities (LEND) project on the development of a Resource Guide in Spanish for families with newly diagnosed infants and young children.

The Hear the World Foundation created the fellowship in 2010, and named it in memory of the late Judith Gravel, PhD, who was internationally renowned for her expertise in pediatric audiology, contributions to clinical research, and dedication to the advancement of educational opportunities. The fellowship is awarded each year to a fourth-year AuD student whose externship is completed at UNC Hospitals with a focus on audiological management of infants and young children with hearing loss.

​

Published: 3/17/2016 12:52:00 PM

from #Audiology via xlomafota13 on Inoreader http://ift.tt/1XzxvVF
via IFTTT

LOCHI Reaches Phase II Trials

Researchers from the HEARing Cooperative Research Center (HEARing CRC) in Australia recently completed testing all 5-year-olds in the Longitudinal Outcomes of Children with Hearing Impairment (LOCHI) study and are on their way to completing their 9-year-old assessments.

The LOCHI study has so far found that infants with hearing loss who are fitted with hearing aids and cochlear implants as soon as possible have better language and learning abilities. The study is in its 11^th year and has assessed more than 400 children with hearing loss at 6 and 12 months, and again at 3, 5, and 9 years. All children are from New South Wales, Victoria, and Queensland. Male participants make up 54 percent of the study, and 25 percent of participants have additional disabilities. Thirty-five percent of children have moderate hearing loss, 29 percent have profound hearing loss, 20 percent have severe hearing loss, and 16 percent of participants have mild hearing loss.          

An essential part of the LOCHI study is to relate how children with hearing loss perform on the tests when compared with children who have normal hearing, according to LOCHI's website.

Some of the tests researchers use do not have normal comparison data, and some tests were produced and normed here in the United States. For these reasons, the team has a sub study running at the same time as LOCHI, testing children with normal hearing on the LOCHI test battery. The same team that test children on the LOCHI study conduct the sub study assessments to ensure the tests were administered exactly the same way.

Assessments for both studies take place in schools, kindergartens, at home, or at hearing centers, just like the LOCHI assessments.

The LOCHI study is a joint endeavor between the National Acoustic Laboratories (NAL) and HEARing CRC, and is led by NAL's Teresa YC Ching, PhD.

​

Published: 3/8/2016 12:51:00 PM

from #Audiology via xlomafota13 on Inoreader http://ift.tt/1XzxwJr
via IFTTT

Hear the World Announces New Fellowship Recipient

The Hear the World Foundation awarded Sarah Webster as its Judith Gravel Fellowship in Pediatric Audiology recipient for 2016-2017.

Ms. Webster is a fourth-year AuD student at the University of North Carolina (UNC) at Chapel Hill, and will complete the fellowship in the Department of Otolaryngology at UNC Chapel Hill. She has a special interest in the delivery of pediatric audiology services to Spanish-speaking families and is focusing her Leadership Education in Neurodevelopmental and Related Disabilities (LEND) project on the development of a Resource Guide in Spanish for families with newly diagnosed infants and young children.

The Hear the World Foundation created the fellowship in 2010, and named it in memory of the late Judith Gravel, PhD, who was internationally renowned for her expertise in pediatric audiology, contributions to clinical research, and dedication to the advancement of educational opportunities. The fellowship is awarded each year to a fourth-year AuD student whose externship is completed at UNC Hospitals with a focus on audiological management of infants and young children with hearing loss.

​

Published: 3/17/2016 12:52:00 PM

from #Audiology via ola Kala on Inoreader http://ift.tt/1XzxvVF
via IFTTT

LOCHI Reaches Phase II Trials

Researchers from the HEARing Cooperative Research Center (HEARing CRC) in Australia recently completed testing all 5-year-olds in the Longitudinal Outcomes of Children with Hearing Impairment (LOCHI) study and are on their way to completing their 9-year-old assessments.

The LOCHI study has so far found that infants with hearing loss who are fitted with hearing aids and cochlear implants as soon as possible have better language and learning abilities. The study is in its 11^th year and has assessed more than 400 children with hearing loss at 6 and 12 months, and again at 3, 5, and 9 years. All children are from New South Wales, Victoria, and Queensland. Male participants make up 54 percent of the study, and 25 percent of participants have additional disabilities. Thirty-five percent of children have moderate hearing loss, 29 percent have profound hearing loss, 20 percent have severe hearing loss, and 16 percent of participants have mild hearing loss.          

An essential part of the LOCHI study is to relate how children with hearing loss perform on the tests when compared with children who have normal hearing, according to LOCHI's website.

Some of the tests researchers use do not have normal comparison data, and some tests were produced and normed here in the United States. For these reasons, the team has a sub study running at the same time as LOCHI, testing children with normal hearing on the LOCHI test battery. The same team that test children on the LOCHI study conduct the sub study assessments to ensure the tests were administered exactly the same way.

Assessments for both studies take place in schools, kindergartens, at home, or at hearing centers, just like the LOCHI assessments.

The LOCHI study is a joint endeavor between the National Acoustic Laboratories (NAL) and HEARing CRC, and is led by NAL's Teresa YC Ching, PhD.

​

Published: 3/8/2016 12:51:00 PM

from #Audiology via ola Kala on Inoreader http://ift.tt/1XzxwJr
via IFTTT

Hear the World Announces New Fellowship Recipient

The Hear the World Foundation awarded Sarah Webster as its Judith Gravel Fellowship in Pediatric Audiology recipient for 2016-2017.

Ms. Webster is a fourth-year AuD student at the University of North Carolina (UNC) at Chapel Hill, and will complete the fellowship in the Department of Otolaryngology at UNC Chapel Hill. She has a special interest in the delivery of pediatric audiology services to Spanish-speaking families and is focusing her Leadership Education in Neurodevelopmental and Related Disabilities (LEND) project on the development of a Resource Guide in Spanish for families with newly diagnosed infants and young children.

The Hear the World Foundation created the fellowship in 2010, and named it in memory of the late Judith Gravel, PhD, who was internationally renowned for her expertise in pediatric audiology, contributions to clinical research, and dedication to the advancement of educational opportunities. The fellowship is awarded each year to a fourth-year AuD student whose externship is completed at UNC Hospitals with a focus on audiological management of infants and young children with hearing loss.

​

Published: 3/17/2016 12:52:00 PM

from #Audiology via ola Kala on Inoreader http://ift.tt/1XzxvVF
via IFTTT

LOCHI Reaches Phase II Trials

Researchers from the HEARing Cooperative Research Center (HEARing CRC) in Australia recently completed testing all 5-year-olds in the Longitudinal Outcomes of Children with Hearing Impairment (LOCHI) study and are on their way to completing their 9-year-old assessments.

The LOCHI study has so far found that infants with hearing loss who are fitted with hearing aids and cochlear implants as soon as possible have better language and learning abilities. The study is in its 11^th year and has assessed more than 400 children with hearing loss at 6 and 12 months, and again at 3, 5, and 9 years. All children are from New South Wales, Victoria, and Queensland. Male participants make up 54 percent of the study, and 25 percent of participants have additional disabilities. Thirty-five percent of children have moderate hearing loss, 29 percent have profound hearing loss, 20 percent have severe hearing loss, and 16 percent of participants have mild hearing loss.          

An essential part of the LOCHI study is to relate how children with hearing loss perform on the tests when compared with children who have normal hearing, according to LOCHI's website.

Some of the tests researchers use do not have normal comparison data, and some tests were produced and normed here in the United States. For these reasons, the team has a sub study running at the same time as LOCHI, testing children with normal hearing on the LOCHI test battery. The same team that test children on the LOCHI study conduct the sub study assessments to ensure the tests were administered exactly the same way.

Assessments for both studies take place in schools, kindergartens, at home, or at hearing centers, just like the LOCHI assessments.

The LOCHI study is a joint endeavor between the National Acoustic Laboratories (NAL) and HEARing CRC, and is led by NAL's Teresa YC Ching, PhD.

​

Published: 3/8/2016 12:51:00 PM

from #Audiology via ola Kala on Inoreader http://ift.tt/1XzxwJr
via IFTTT