PSYC 351B Study Guide - Midterm Guide: Calcarine Sulcus, Superior Temporal Sulcus, Temporal Lobe
4 Apr 2018
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He was not consciously aware the light had appeared and was bemused that he could guess quite accurately . Pm had difficulty reading words and recognizing faces. Top down: we use perceptual adaptation to fill in the blank. Bottom up: we have a sensory deficit. Nystagmus: tiny involuntary saccades that occur to avoid sensory habituation. Chemical opsin send the electrical signal that says, you are seeing something. If you don"t move your eyes you increase your habituation and your brain gets tired of firing for the exact same stimulus: your eyes are always moving and interpreting your environment. A disorder that relates to this is nystagmus: erratic eye movement and cannot focus on images because their eyes never focus on anything. Cortical blindness: damage to v1 but not to v5 therefore they have the feeling of seeing motion. Akinetopsia: inability to perceive motion from damage to v5. Cerebral achromatopsia: damage to v1-v4 pathway, inability to perceive colour (chrom)
