PSYCH 3A03 Lecture Notes - Conductive Hearing Loss, Sensorineural Hearing Loss, Otitis Media

• School: McMaster University
• Department: Psychology
• Course: PSYCH 3A03
• Professor: Paul Faure

Document Summary

Recall that some auditory neurons are sensitive to sound duration, some are sensitive to onset, and some are sensitive to offset: these cues help our auditory systems fuse and segregate sounds of different sources. Not limited to absolute onset and offset rate of onset, called the attack, and rate of offset, called the release, are often important. Most sounds we hear have temporal modulations. Sounds with similar temporal patterns tend to be perceptually fused (grouped) E. g. musicians playing/singing in time with one another. Sounds with distinct temporal patterns tend to be segregated. Subjects asked to detect target ban when either in the presence of a cue band or not. Noise band is either comodulated in amplitude modulation or not to the target band. When they are amplitude modulated the same way, thresholds decrease by. Can detect depth of modulation when there is no masker. Signals with a masker that is not amplitude modulated: thresholds slightly increase.