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A relationship between hearing and the brain was first documented by Ambroise Paré, a 16th century battlefield doctor, who associated parietal lobe damage with acquired deafness (reported in Henschen, 1918 [8]). Systematic research into the manner in which the brain processes sounds, however, only began toward the end of the 19th century.
The auditory cortex is the most highly organized processing unit of sound in the brain. This cortex area is the neural crux of hearing, and—in humans—language and music. The auditory cortex is divided into three separate parts: the primary, secondary, and tertiary auditory cortex.
Auditory processing disorder (APD) is a neurodevelopmental disorder affecting the way the brain processes sounds. [2] Individuals with APD usually have normal structure and function of the ear, but cannot process the information they hear in the same way as others do, which leads to difficulties in recognizing and interpreting sounds, especially the sounds composing speech.
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Graph showing a typical Auditory Brainstem Response. The auditory brainstem response (ABR), also called brainstem evoked response audiometry (BERA) or brainstem auditory evoked potentials (BAEPs) or brainstem auditory evoked responses (BAERs) [1] [2] is an auditory evoked potential extracted from ongoing electrical activity in the brain and recorded via electrodes placed on the scalp.
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The same methodology was used to estimate the prevalence of hearing loss for noise-exposed U.S. workers within the Health Care and Social Assistance sector. [155] The prevalence of hearing loss in the Medical Laboratories subsector was 31% and in the Offices of All Other Miscellaneous Health Practitioners subsector was 24%.
Hearing a missing fundamental frequency, given other parts of the harmonic series; Various psychoacoustic tricks of lossy audio compression; McGurk effect; Octave illusion/Deutsch's high–low illusion; Auditory pareidolia: hearing indistinct voices in random noise. The Shepard–Risset tone or scale, and the Deutsch tritone paradox; Speech-to ...