PSYC 351B Study Guide - Midterm Guide: Sensory Cortex, Nociception, Valspar
4 Apr 2018
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Psychology 351b chapter 8 organization of the sensory system. Transduction: (objective) shifting from modality to an electrical impulse. Coding: (subjective) an increase or decrease in firing, integration of signals (gating, lateral inhibition) Once transduced, all sensory information is encoded by action potentials that travel along the peripheral-system nerves until they enter the brain or spinal cord and then on tracts within the cns. But every bundle carries the same kind of signal. Three ways that processes of body become transformed into perceptual experiences. Topographic organization: an ordered, spatial relationship between surfaces. Humans have more somatic areas than monkeys and monkeys have more than owls. 30 visual areas: humans can perceive the world in ways that monkeys cannot. Expertise hypothesis: exposure induces changes in neuroanatomy, thus you can change how you see objects based on practice and experience. Spatial representation in the brain changes based on the exposure of your environment. 2: sensitive to places and memorize london.
