PSY 30440 Study Guide - Midterm Guide: Interaural Time Difference, Acoustic Shadow, Cochlear Nucleus
Document Summary
= poor at recognizing but good at localizing: patient e. s. = good at recognizing but bad at localizing: auditory localization, 1. Azimuth: sound recognition from left-to-right horizontal plane: binocular cues for l/r sound localization, 1. Interaural level difference (ild): due to head shadow effects, head and pinna diffraction reduces sound at far ear, while boosting the sound at near ear. Ild = 0 when sound in front or behind. Ild = max when sound on side of head: 2. Interaural time difference (itd): sounds arrive earlier at the ear closest to the source difference in arrival time = itd, dependent on speed of sound and size of head. Itd = 0 when sound in front or behind. Good continuation: when gaps in a pure tone are coincident with a noise mask, the auditory syste(cid:373) (cid:862)fills i(cid:374)(cid:863) the gaps so that a co(cid:374)ti(cid:374)uous to(cid:374)e is perceived, 2.
