Communication Sciences and Disorders 4417A/B Study Guide - Final Guide: Basilar Membrane, Sensorineural Hearing Loss, Tectorial Membrane

• School: Western University
• Department: Communication Sciences and Disorders
• Course: Communication Sciences and Disorders 4417A/B
• Professor: Ewan Macpherson

Document Summary

Describe two phenomena in the human auditory system that exhibit resonance and what the functional significance of the resonance is: masking is one of the most popular ways to study auditory frequency resolution. Describe how a masking experiment might work, and what the results might show. So, the inter-spike intervals tend to occur at integer multiples of the period of the tone. With high frequency tones (> 3khz) phase locking gets weaker, because the capacitance of inner hair cells prevents them from changing in voltage sufficiently rapidly: explain how the auditory nerve codes information about frequency and intensity (stimulus level) Information about frequency carried by: place coding: fibers servicing a particular place associated with a frequency increase firing, temporal coding: produced by phase locking. You will all be familiar with the experience of o(cid:374)e sou(cid:374)d (cid:858)d(cid:396)o(cid:449)(cid:374)i(cid:374)g out(cid:859) a(cid:374)othe(cid:396) sou(cid:374)d. fo(cid:396) e(cid:454)a(cid:373)ple, t(cid:455)pi(cid:272)al (cid:272)lass(cid:396)oo(cid:373) sou(cid:374)ds, created by movement, coughing, rustling of papers, make the instructor"s voice difficult to hear.