NBB 302 Chapter Notes - Chapter 10: Papez Circuit, Reticular Formation, Limbic Lobe
12 Mar 2018
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Ch 10 emotion: introduction, patient s. m -- urbach-wieteh disease (degeneration of amygdalae) Knows about fear and emotions, but isnt able to experience it or recognize fear expression. Involve changes across multiple response systems (experiential, behavioral, peripheral, physiological) Unlearned responses to stimuli w/intrinsic affective properties/ learned responses to stimuli w/acq emotional value. Involve multiple types of appraisal processes assessing sig of stimuli to current goals. Depend on diff neural systems: 3 components. Subjective experience (feeling: neural systems involved in emotion processing. Hypothalamus --> ans, release of hormones by pituitary. Arousal system --ras (reticular activating system)---brainstem to rostral intralaminar/thalamic nuclei to cortex: early concepts: the limbic system as the emotional brain. Papez -- emotional responses involve network of brain regions (hypothalamus, ant thalamus, cingulate gyrus, hippocampus): maclean named these "papez circuit, + visceral brain, broca"s limbic lobe, subcortical nuclei, portions of basal ganglia .
