NROSCI 0080 Lecture Notes - Lecture 6: Oval Window, Inner Ear, Outer Ear
Document Summary
10/16/17: humans hear by detecting sound waves, sound waves are periodic compressions of air, water, or other media, sound waves vary in amplitude, amplitude: intensity of sound wave (loudness) Frequency: # of compressions per second; measured in hertz (hz: related to pitch (high frequency = high pitch & vice versa) Timbre: tone quality or tone complexity: children hear higher frequencies than adults, ability to recognize high frequencies diminishes w/ age & exposure to loud noises. People communicate emotion by alterations in pitch, loudness, and timbre: outer ear. 2: more common among people who speak tonal languages like vietnamese or. Primary auditory cortex (area a1): destination for most info from auditory system: located in superior temporal cortex. Cochlear nucleus receives input from only ipsilateral ear (ear on same side of head). All later stages have input from both ears, but more strongly from contralateral ear)
