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Part 3: Chapter 29
Emotions
20
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Undergraduate 2
11/10/2014

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Term
piloerection
Definition
hair standing on end
Term
What are some examples of how the visceral motor system indicates signs of emotional arousal?
Definition
increases or decreases in heart rate, increases or decreases in cutaneous blood flow, piloerection, sweating, gastrointestinal motility
Term
sham rage
Definition
anger behavior that has no obvious target; can be elicited when only the hypothalamus is intact; cannot be elicited when the hypothalamus is damaged
Term
reticular formation
Definition
a tangled web of nerve cells & fibers in the core of the brainstem; contains the major targets of the hypothalamus
Term
limbic lobe
Definition
the part of the cerebral cortex that forms a rim around the corpus callosum & diencephalon on the medial face of the hemispheres; named by Paul Broca in 1878; name comes from "limbus" meaning rim
Term
2 prominent components of the limbic lobe
Definition
cingulate gyrus & parahippocampal gyrus
Term
Where is the cingulate gyrus?
Definition
above the corpus callosum
Term
Where is the parahippocampal gyrus?
Definition
in the medial temporal lobe
Term
Papez showed that the cingulate cortex & hypothalamus are interconnected via projections from the _____ to the _____ which projects in turn to the cingulate gyrus
Definition
mammillary bodies; anterior nucleus of the thalamus
Term
fornix
Definition
a large fiber bundle; how the hippocampus projects back to the hypothalamus
Term
Papez circuit
Definition
mammillary bodies (part of the hypothalamus) --> anterior nucleus of the thalamus --> cingulate gyrus --> hippocampus --> hypothalamus
Term
6 parts of the limbic system
Definition
1. orbital prefrontal cortex
2. medial prefrontal cortex
3. mediodorsal nucleus of the thalamus
4. amygdala
5. parahippocampal gyrus
6. cingulate cortex
Term
Is the Papez circuit very correct?
Definition
no
Term
conditioned fear response
Definition
conditioned fear develops when an initially neutral stimulus is repeatedly paired with an inherently aversive one; over time, the animal begins to respond to the neutral stimulus with behaviors similar to those elicited by the threatening stimulus
Term
What part of the brain is crucial to conditioned fear?
Definition
amygdala
Term
Interactions between what three brain structures account for the highly subjective feelings that attend most emotional states?
Definition
the amygdala, the neocortex, & related subcortical circuits
Term
aprosody/aprosodia
Definition
the loss of emotional expression by modulation of speech patterns
Term
Patients with damage to the supra-Sylvian portions of the posterior frontal & anterior parietal lobes on the right side of the brain may experience _____
Definition
aprosody/aprosodia
Term
Lesions in the left hemisphere to portions of the posterior frontal & anterior parietal lobes may lead to _____
Definition
Broca's aphasia
Term
Which comes first: emotion or feelings?
Definition
NO PROOF OF EITHER! (more experimental evidence supporting emotions first though)
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