PSYC 212 Lecture 13: PSYC 212 – Lecture 13 – February 27th

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

Audition 1: sound and hearing/ audition 2: auditory scene analysis. Why sound travels faster in water: with air, the air molecules are very dispersed. When a tuning fork, for example, moves to the left, for instance, the air compresses until it reaches a level of saturation, and the(cid:374) it (cid:272)a(cid:374) (cid:374)o lo(cid:374)ge(cid:396) (cid:272)o(cid:373)p(cid:396)ess, so it(cid:859)s pushed, a(cid:374)d it travels in space. With water, the molecules are much (cid:373)o(cid:396)e tightl(cid:455) pa(cid:272)ked, so (cid:455)ou do(cid:374)(cid:859)t (cid:374)eed a lot of comp(cid:396)essio(cid:374) fo(cid:396) the (cid:449)a(cid:448)e to sta(cid:396)t (cid:373)o(cid:448)i(cid:374)g; it(cid:859)s easie(cid:396) to (cid:272)o(cid:373)p(cid:396)ess it (cid:271)e(cid:272)ause it(cid:859)s al(cid:396)ead(cid:455) de(cid:374)se(cid:396), (cid:449)hi(cid:272)h is why it travels faster. Sound travels very quickly in solid (cid:373)ediu(cid:373)s. we (cid:272)a(cid:374)(cid:859)t hea(cid:396) it (cid:271)e(cid:272)ause ou(cid:396) ea(cid:396) is(cid:374)(cid:859)t built for that, but vibrations travel very fast. The auditory system the ear: on top of the basilar membrane there are hair cells and the nerves connected to them.