Tereza R. R. Sena, Solano S.F Dourado, Lucas V Lima, Ângelo R Antoniolli
Noise and Health 2018 20(92):23-26
In work environments, different physical and chemical agents that may pose a risk to workers‘ hearing health coexist. In this context, occupational hearing loss stands out. It has mostly been attributed to only noise exposure, although there are other agents, that is, pesticides that might contribute to occupational hearing loss. In this report, two cases will be presented that consider rural workers exposed to pesticides and intense noise generated by an adapted rudimentary vehicle. The noise measured in this vehicle was 88.3 dBA up to 93.4 dBA. Pure-tone audiometry, distortion product otoacoustic emissions, and high-frequency audiometry tests were performed. This report is unusual because of the short time of exposure to noise and pesticides and the hearing loss found, indicating a synergy between those agents.
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Παρασκευή 16 Φεβρουαρίου 2018
Influences of combined traffic noise on the ability of learning and memory in mice
Guo-Qing Di, Zhao-Qi Qin
Noise and Health 2018 20(92):9-15
Objective: The present study aimed to evaluate the influences of combined traffic noise (CTN) on the ability of learning and memory in mice. Materials and Methods: The Institute of Cancer Research (ICR) mice were exposed to CTN from highways and high-speed railways for 42 days, whose day–night equivalent continuous A-weighted sound pressure level (Ldn) was 70 dB(A). On the basis of behavioral reactions in Morris water maze (MWM) and the concentrations of amino acid neurotransmitters in the hippocampus, the impacts of CTN on learning and memory in mice were examined. Results: The MWM test showed that the ability of learning and memory in mice was improved after short-term exposure (6–10 days, the first batch) to 70 dB(A) CTN, which showed the excitatory effect of stimuli. Long-term exposure (26–30 days, the third batch; 36–40 days, the fourth batch) led to the decline of learning and memory ability, which indicated the inhibitory effect of stimuli. Assays testing amino acid neurotransmitters showed that the glutamate level of the experimental group was higher than that of the control group in the first batch. However, the former was lower than the latter in the third and fourth batches. Both, behavioral reactions and the concentrations of amino acid neurotransmitters, testified that short-term exposure and long-term exposure resulted in excitatory effect and inhibitory effect on the ability of learning and memory, respectively. Conclusion: The effects of 70 dB(A) CTN on the ability of learning and memory were closely related to the exposure duration. Furthermore, those effects were regulated and controlled by the level of glutamate in the hippocampus.
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Noise and Health 2018 20(92):9-15
Objective: The present study aimed to evaluate the influences of combined traffic noise (CTN) on the ability of learning and memory in mice. Materials and Methods: The Institute of Cancer Research (ICR) mice were exposed to CTN from highways and high-speed railways for 42 days, whose day–night equivalent continuous A-weighted sound pressure level (Ldn) was 70 dB(A). On the basis of behavioral reactions in Morris water maze (MWM) and the concentrations of amino acid neurotransmitters in the hippocampus, the impacts of CTN on learning and memory in mice were examined. Results: The MWM test showed that the ability of learning and memory in mice was improved after short-term exposure (6–10 days, the first batch) to 70 dB(A) CTN, which showed the excitatory effect of stimuli. Long-term exposure (26–30 days, the third batch; 36–40 days, the fourth batch) led to the decline of learning and memory ability, which indicated the inhibitory effect of stimuli. Assays testing amino acid neurotransmitters showed that the glutamate level of the experimental group was higher than that of the control group in the first batch. However, the former was lower than the latter in the third and fourth batches. Both, behavioral reactions and the concentrations of amino acid neurotransmitters, testified that short-term exposure and long-term exposure resulted in excitatory effect and inhibitory effect on the ability of learning and memory, respectively. Conclusion: The effects of 70 dB(A) CTN on the ability of learning and memory were closely related to the exposure duration. Furthermore, those effects were regulated and controlled by the level of glutamate in the hippocampus.
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Public mnline information about tinnitus: A cross-sectional study of youtube videos
Corey H Basch, Jingjing Yin, Betty Kollia, Adeyemi Adedokun, Stephanie Trusty, Felicia Yeboah, Isaac Chun-Hai Fung
Noise and Health 2018 20(92):1-8
Purpose: To examine the information about tinnitus contained in different video sources on YouTube. Materials and Methods: The 100 most widely viewed tinnitus videos were manually coded. Firstly, we identified the sources of upload: consumer, professional, television-based clip, and internet-based clip. Secondly, the videos were analyzed to ascertain what pertinent information they contained from a current National Institute on Deafness and Other Communication Disorders fact sheet. Results: Of the videos, 42 were consumer-generated, 33 from media, and 25 from professionals. Collectively, the 100 videos were viewed almost 9 million times. The odds of mentioning “objective tinnitus” in professional videos were 9.58 times those from media sources [odds ratio (OR) = 9.58; 95% confidence interval (CI): 1.94, 47.42; P = 0.01], whereas these odds in consumer videos were 51% of media-generated videos (OR = 0.51; 95% CI: 0.20, 1.29; P = 0.16). The odds that the purpose of a video was to sell a product or service were nearly the same for both consumer and professional videos. Consumer videos were found to be 4.33 times as likely to carry a theme about an individual’s own experience with tinnitus (OR = 4.33; 95% CI: 1.62, 11.63; P = 0.004) as media videos. Conclusions: Of the top 100 viewed videos on tinnitus, most were uploaded by consumers, sharing individuals’ experiences. Actions are needed to make scientific medical information more prominently available and accessible on YouTube and other social media.
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Noise and Health 2018 20(92):1-8
Purpose: To examine the information about tinnitus contained in different video sources on YouTube. Materials and Methods: The 100 most widely viewed tinnitus videos were manually coded. Firstly, we identified the sources of upload: consumer, professional, television-based clip, and internet-based clip. Secondly, the videos were analyzed to ascertain what pertinent information they contained from a current National Institute on Deafness and Other Communication Disorders fact sheet. Results: Of the videos, 42 were consumer-generated, 33 from media, and 25 from professionals. Collectively, the 100 videos were viewed almost 9 million times. The odds of mentioning “objective tinnitus” in professional videos were 9.58 times those from media sources [odds ratio (OR) = 9.58; 95% confidence interval (CI): 1.94, 47.42; P = 0.01], whereas these odds in consumer videos were 51% of media-generated videos (OR = 0.51; 95% CI: 0.20, 1.29; P = 0.16). The odds that the purpose of a video was to sell a product or service were nearly the same for both consumer and professional videos. Consumer videos were found to be 4.33 times as likely to carry a theme about an individual’s own experience with tinnitus (OR = 4.33; 95% CI: 1.62, 11.63; P = 0.004) as media videos. Conclusions: Of the top 100 viewed videos on tinnitus, most were uploaded by consumers, sharing individuals’ experiences. Actions are needed to make scientific medical information more prominently available and accessible on YouTube and other social media.
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Examination of previously published data to identify patterns in the social representation of “Loud music” in young adults across countries
Vinaya Manchaiah, Fei Zhao, Susan Oladeji, Pierre Ratinaud
Noise and Health 2018 20(92):16-22
Purpose: The current study was aimed at understanding the patterns in the social representation of loud music reported by young adults in different countries. Materials and Methods: The study included a sample of 534 young adults (18–25 years) from India, Iran, Portugal, United Kingdom, and United States. Participants were recruited using a convince sampling, and data were collected using the free association task. Participants were asked to provide up to five words or phrases that come to mind when thinking about “loud music.” The data were first analyzed using the qualitative content analysis. This was followed by quantitative cluster analysis and chi-square analysis. Results: The content analysis suggested 19 main categories of responses related to loud music. The cluster analysis resulted in for main clusters, namely: (1) emotional oriented perception; (2) problem oriented perception; (3) music and enjoyment oriented perception; and (4) positive emotional and recreation-oriented perception. Country of origin was associated with the likelihood of participants being in each of these clusters. Conclusion: The current study highlights the differences and similarities in young adults’ perception of loud music. These results may have implications to hearing health education to facilitate healthy listening habits.
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Noise and Health 2018 20(92):16-22
Purpose: The current study was aimed at understanding the patterns in the social representation of loud music reported by young adults in different countries. Materials and Methods: The study included a sample of 534 young adults (18–25 years) from India, Iran, Portugal, United Kingdom, and United States. Participants were recruited using a convince sampling, and data were collected using the free association task. Participants were asked to provide up to five words or phrases that come to mind when thinking about “loud music.” The data were first analyzed using the qualitative content analysis. This was followed by quantitative cluster analysis and chi-square analysis. Results: The content analysis suggested 19 main categories of responses related to loud music. The cluster analysis resulted in for main clusters, namely: (1) emotional oriented perception; (2) problem oriented perception; (3) music and enjoyment oriented perception; and (4) positive emotional and recreation-oriented perception. Country of origin was associated with the likelihood of participants being in each of these clusters. Conclusion: The current study highlights the differences and similarities in young adults’ perception of loud music. These results may have implications to hearing health education to facilitate healthy listening habits.
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Cathodal neuromodulation of dominant temporoparietal cortex with transcranial direct current stimulation for tinnitus: A case series
Rohit Verma, Nand Kumar, Rakesh Kumar, Saurabh Kumar, Preethy Kathiresan
Noise and Health 2018 20(92):27-29
There is scant literature on the effectiveness of using transcranial direct current stimulation (tDCS) as an intervention modality for managing tinnitus. The current case series reflects the use of tDCS as an effective intervention for tinnitus while inhibiting the dominant temporoparietal cortex and simultaneous stimulating the non-dominant dorsolateral prefrontal cortex.
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Noise and Health 2018 20(92):27-29
There is scant literature on the effectiveness of using transcranial direct current stimulation (tDCS) as an intervention modality for managing tinnitus. The current case series reflects the use of tDCS as an effective intervention for tinnitus while inhibiting the dominant temporoparietal cortex and simultaneous stimulating the non-dominant dorsolateral prefrontal cortex.
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Test Tone Generator
Please note: the following information does not constitute professional medical advice, and is provided for general informational purposes only. Please speak to your doctor if you have tinnitus.
Individuals who have tinnitus may experience a ringing or high-pitched sound on a constant basis. This may be true even in a quiet room or anywhere else where there is no actual source of noise. Tinnitus may make it difficult to sleep, interact with others or live a normal life in general. However, there are treatment options such as a test tone generator that may help reduce symptoms of the condition.
A Test Tone Generator Is Used in Notch Therapy
To treat the symptoms associated with tinnitus, it may be necessary to first find the tone and frequency that a person is hearing. From there, a notch is created, which lowers the volume at that tone and frequency when a person listens to it. After recording a track featuring the notch, a person can listen to it, and doing so may work to reduce the volume a person hears. Individuals may be able to listen to their tracks at home, in the car or anywhere else where they have the ability to play recordings.
Do You Have to Pay for Test Tone Generator?
While there are products that you can pay for, AudioNotch does offer two free test tone generators to help you get a feel for how this tool can help you. It may takes several days to several weeks before you start to notice a difference. It may be possible to generate multiple frequencies using both paid and free tools to figure out which one is causing you the most problems.
Is It Hard to Find Your Frequency?
In many cases, you can find your frequency following step-by-step directions offered by AudioNotch as you use their free or paid tool. Those who suffer from octave confusion can also be given instructions as to how they can find the proper pitch and frequency to notch. Those who who have issues at multiple frequencies may be able to create multiple notches to help relieve their symptoms. However, it may only be possible to listen to one frequency at a time.
Those who are suffering from tinnitus are experiencing a condition in which the brain mistakenly believes it is hearing sound. By using notch therapy, it may be possible to retrain the brain into not hearing the sound when it doesn’t exist. Over time, tinnitus patients may be able to reduce the frequency and severity of the noise or get rid of it completely.
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Starkey Introduces Its Smartest, Smallest Rechargeable Hearing Aid
After unveiling it at the Starkey's Hearing Innovation Expo in Las Vegas, Starkey's (https://www.starkey.com/) new Muse iQ Rechargeable hearing aid is now available to consumers through their network of hearing professionals and audiologists. The Muse iQ Rechargeable hearing aid is Starkey's smallest over-the-ear hearing aid to date. Built on Starkey's Synergy platform and Acuity OS operating system, the new hearing aid offers 30 hours of use with streaming, and fast, full-day charging in less than three hours. It also comes with a convenient, transportable charging case for 15-minute and "weekend" charges. This wireless hearing aid features telecoil and a CROS rechargeable system for individuals with single-sided hearing loss. Unlike other lithium-ion rechargeable hearing aids, the Muse iQ Rechargeable offers a user-friendly on/off switch.
Published: 2/16/2018 3:18:00 PM
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Starkey Introduces Its Smartest, Smallest Rechargeable Hearing Aid
After unveiling it at the Starkey's Hearing Innovation Expo in Las Vegas, Starkey's (https://www.starkey.com/) new Muse iQ Rechargeable hearing aid is now available to consumers through their network of hearing professionals and audiologists. The Muse iQ Rechargeable hearing aid is Starkey's smallest over-the-ear hearing aid to date. Built on Starkey's Synergy platform and Acuity OS operating system, the new hearing aid offers 30 hours of use with streaming, and fast, full-day charging in less than three hours. It also comes with a convenient, transportable charging case for 15-minute and "weekend" charges. This wireless hearing aid features telecoil and a CROS rechargeable system for individuals with single-sided hearing loss. Unlike other lithium-ion rechargeable hearing aids, the Muse iQ Rechargeable offers a user-friendly on/off switch.
Published: 2/16/2018 3:18:00 PM
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Starkey Introduces Its Smartest, Smallest Rechargeable Hearing Aid
After unveiling it at the Starkey's Hearing Innovation Expo in Las Vegas, Starkey's (https://www.starkey.com/) new Muse iQ Rechargeable hearing aid is now available to consumers through their network of hearing professionals and audiologists. The Muse iQ Rechargeable hearing aid is Starkey's smallest over-the-ear hearing aid to date. Built on Starkey's Synergy platform and Acuity OS operating system, the new hearing aid offers 30 hours of use with streaming, and fast, full-day charging in less than three hours. It also comes with a convenient, transportable charging case for 15-minute and "weekend" charges. This wireless hearing aid features telecoil and a CROS rechargeable system for individuals with single-sided hearing loss. Unlike other lithium-ion rechargeable hearing aids, the Muse iQ Rechargeable offers a user-friendly on/off switch.
Published: 2/16/2018 3:18:00 PM
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