Works for low frequency sounds

Works for low frequency sounds - o Works for low frequency...

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o Works for low frequency sounds, but not for high frequency sounds (sound shadow) Wavelengths shorter than interaural distance are reflected or absorbed o How does the brain use ITD’s to determine location? Coding of location in the auditory pathway, increase in firing rate to some sounds in the right, some in left, direction sensitive auditory neurons o Jeffress circuit – maps time onto place, takes time difference (temporal) coding it in terms of location (spatial location) Overcoming the cone of confusion o Turning the head can disambiguate ILD/ITD similairty Pinna shapes vary quite a lot between people – filters sound, modifications to sound (as it interacts with the ear) provide important informative cues to location of sounds o Head-related transfer functions – unique to each individual b/c head and ear are differently shaped, signature, the way sounds changes to interactions with head and ear shape are based on individual Sound localization relies on several cues
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This note was uploaded on 11/27/2011 for the course PSYC 225 taught by Professor Staff during the Fall '10 term at UNC.

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Works for low frequency sounds - o Works for low frequency...

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