PSY 3108 Lecture Notes - Lecture 9: Superior Olivary Complex, Cochlea, Mnemonic
Document Summary
Roughly 50% multiple choice, 50% short answer. Chapters 1,3,4,5, chapter 6 (adjusted) p. 180-183 & p. 190-194 &bottom p. 200 p. 203. Formulae: a chart will be provided on the test: not tested, p. 171-173, tactile communication p. 85-87. Receives inputs from many higher areas, such as a1. May be a switchboard for regulating auditory attention. Also, an integrating area for multi-modal perceptual responses such as startles reflexes and reflexive looking. Connections do not only go from ear up to cortex (afferent), but also back down (efferent) For instance, olivo-cochlear neurons--going from superior olivary nucleus down to cochlea--can turn down the gain on ihcs to allow them to process higher sound volumes. Descending connections also cause contractions in small muscles attached to ossicles, causing them to be less mobile and thus turning down the volume on high amplitude sounds. What is the sequence of subcortical nuclei that carries auditory information from ear to cortex? (create a mnemonic for csima) .