NSCI 201 Lecture : EMOTIONS .pdf

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Doesn"t work with pain or terror used a technique for electrical stimulation (galvonic stimulation) that directly causes muscle contractions puts electrodes on various muscles on the face and record results. 2: bilateral stimulation of the two cheekbone muscles = characteristic smiling (lower face) but upper face has no changes (compare this to 3, a spontaneous smile) By removing bilateral medial temporal lobes (destroyed many structures involved in emotional processing) observed kluver- visual agnosia without blindness (monkeys didn"t recognize normal objects. Ipsilateral to lesion: similar behavior to kluver-bucy syndrome: contralateral to lesion: normal, fearful, aggressive behavior, touch animal to either side: normal (thus somatic sensory info still contacted good amygdala, but visual info access dpded on side of body) Initially when brain imaging techniques, provided support for amygdala for specialized fear area" of the brain: urbach-wiethe disease: these subjects have speci c destruction of amygdala and related structures, but sparred remainder of brain, rings show missing amydala.

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