PHIL 120W Lecture Notes - Lecture 9: Progressive Supranuclear Palsy, Superior Colliculus, Stroop Effect
22 Dec 2016
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Psych 330 lecture 9 attentional networks and brain physiology. Part 1: brain structure like, stimulated hyper aroused. Reticular activating system (ras): arousal, no activation leads to comatose. Superior colliculus: eye movement areas important for orienting attention as well. Pulvinar (region of thalamus): block out irrelevant inputs, help engage on item of interest. Anterior cingulate cortex: active during flanker tasks, deeply embedded in frontal cortex. Our visual, temporal cortex is very similar to macaque monkey brain. Our frontal cortex is much larger and complex though. Response time for task is almost identical, but they are faster. Serotonin: more serotonin when we are doing something on autopilot. Firing rate increases when monkeys payed attention to light. When superior colliculus is damaged, there is no ior. Have difficulty moving eyes up and down, later on, had difficulty moving side to side. Showed ior in horizontal plane, but not with a vertical plane (no ior) Thiamine deficiency disrupts superior colliculus and ior.
