PSYA02H3 Chapter Notes - Chapter 11.4: Parasympathetic Nervous System, Autonomic Nervous System, Sympathetic Nervous System
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PSYA02H3 Full Course Notes
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(a) a subjective thought and/or experience with. (b) accompanying patterns of neural activity and physical arousal and. (c) an observable behavioural expression (e. g. , an emotional facial expression or changes in muscle tension. Emotional behaviours are actually quite complex and involve a number of different components or stages. Each of these stages uses a distinct set of brain regions. The human brain shows emotion-dependent responses within approximately. 150 ms of seeing or hearing a potential threat. Amydgdala: group of nuclei in the medial portion (near the middle) of the temporal lobes in each hemisphere of the brain. The amygdala res when we perceive stimuli that are emotionally arousing, and is especially sensitive to fear-relevant images and sounds. When the amygdala receives input about a stimulus that might be emotionally meaningful or threatening, it stimulates activity in sensory areas so that they"re more than they would for a non-emotional stimulus.
