PSYC 2220 Lecture Notes - Lecture 1: Occipital Lobe, Sensory Neuron, Visual Processing
14 Oct 2015
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The preception process: environmental stimulus, light is reflected and transform, receptor process, neural processing, perception, recognition, action (5,6,7 can reverse, due to the top down perception) Principle of transformation: the stimulus and the perception of that stimulus are not the same, there has been a transformation: stimulus electromagnetic energy/light electric signals/neural firing. Sensory receptors: cells specialized to respond to environmental energy/light/electromagnetic energy. Transduction: visual pigment reacts to light receptors transduct the light energy to electronic energy to nerve fibers. Step 4: neural process changes that occur as the signals are transmitted through the maze of neurons. Occipital lobe: visual processing centre in the brain of mammals, contain v1(primary visual cortex), v2,v4 ventral stream, v3,v5 dorsal stream. Temporal lobe: high level auditory processing, visual memories, decision making, comprehension, emotion. Parietal lobe: sensory information such as touch, navigation, spatial sense, pain, temperature .
