NROC61H3 Chapter 18: Chapter 18 - Exam Notes

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15 Dec 2011
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Affective neuroscience: the investigation of the neural basis of emotion and mood. Group of interconnected structures including the hypothalamus, amygdala, and cerebral cortex appear to be intimately involved in the processing of emotions. Proposed that we experience emotion in response to physiological changes in our body: e. g. Emotional experience can occur independently of emotional expression. Emotions can be experienced even if physiological changes cannot be sensed. Support to this claim: studied transection of spinal cord of animals (eliminates body sensations below the level of the cut, but did not diminish emotion) Argued that physiological changes seen in fear is also seen in other non-emotional conditions (e. g. fever) In masking experiment, subjects responded to angry expression (skin conductance & amygdala activation) on the aversive face stimuli even though they were not perceptually aware of seeing the faces at all. Papez believed that there is an emotion system on the medial wall of the brain that links the cortex with the hypothalamus.

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