Term
| A group of structures located on the medial aspect of the brain, first described by Broca in 1987, and later expanded. |
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Definition
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Term
| Structures of the limbic system are concerned with: (2) |
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Definition
1. Processes involved with memory
2. Visceral and motor responses to emotion |
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Term
| The limbic system also includes pathways which interconnect what 2 regions? |
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Definition
Fornix
Mammilothlamic Tract |
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Term
| Name the 2 primary structures of the limbic system |
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Definition
1. Hippocampus
2. Amygdala |
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Term
| This primary structure of the limbic system is involved in memory formation. |
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Definition
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Term
| This primary structure of the limbic system is involved in the processes of emotion. |
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Definition
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Term
| Name 3 things that are in the hippocampus. |
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Definition
Dentate Gyrus
Hippocampus Proper
Subiculum |
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Term
| Receives input from association areas of the cerebral cortex via the parahippocampus, perirhinal and entorhinal cortices. Sends output back to association areas of the cortex via the same connections. |
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Definition
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Term
| The hippocampus also sends efferents via the fornix to what 2 areas? |
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Definition
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Term
| Functions in processing of explicit memory for long-term storage. |
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Definition
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Term
| 2 classifications of memory |
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Definition
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Term
| Factual knowledge of people, places, and things along with the meaning of those facts |
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Definition
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Term
| What is another term for Explicit Memory |
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Definition
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Term
| Knowledge of how to perform a motor or perceptual skill |
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Definition
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Term
| What is another term for Implicit Memory? |
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Definition
| Nondeclarative or Procedural Memory |
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Term
| Necessary for converting short-term to long-term memory (consolidation) |
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Definition
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Term
| The hippocampus probably uses what to produce consolidation? |
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Definition
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Term
| Is memory stored in the hippocampus? |
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Definition
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Term
| Memory is not stored in the hippocampus but in association areas of what? |
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Definition
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Term
| Hippocampus is necessary for what? |
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Definition
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Term
| Damage to the hippocampus or output circuits results in what? |
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Definition
| Inability to form new long term memory |
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Term
| Does damage to the hippocampus or output circuits damage short term memory? |
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Definition
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Term
| Damage to the hippocampus or output circuits will show deficits in what type of memory? |
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Definition
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Term
| The inability to incorporate new information into memory |
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Definition
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Term
| Damage to the hippocampus bilaterally causes what? |
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Definition
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Term
| The inability to form new memories following lesion while intelligence is unaffected |
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Definition
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Term
| Inability to remember events that occurred prior to onset of illness |
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Definition
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Term
| Is retrograde amnesia due to hippocampal damage? |
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Definition
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Term
| Why might you see Korsakoff's psychosis in patients with chronic alcoholism? |
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Definition
| Due to thiamin (vitamin B1) deficiency |
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Term
| The inability to name objects; damage to the posterior parietal cortex |
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Definition
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Term
| The inability to recognize familiar faces or learn new faces; damage to the inferior temporal cortex |
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Definition
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Term
| Patients with this are prone to confabulation |
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Definition
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Term
| Name the 4 aspects of storing memory. |
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Definition
Encoding
Consolidation
Storage
Retrieval |
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Term
| What is the role of the hippocampus? |
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Definition
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Term
| Where are memories stored? |
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Definition
| Association areas of cortex |
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Term
| Where you have some memories, pieces, not the entire memory. So you pick and choose little memories that you have a put them together in a story. Timeline is all messed up. |
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Definition
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Term
| Lies beneath the uncus on the ventral surface of the brain |
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Definition
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Term
| Receives a great deal of sensory input including somatosensory, visual, auditory, and all types of visceral input. |
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Definition
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Term
| Name the most prominent sensory inputs to the amygdala. |
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Definition
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Term
| Name the 3 efferents from the amygdala |
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Definition
1. to hypothalamus
2. to cortical areas (particularly cingulate gyrus)
3. to brainstem nuclei |
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Term
| Efferents from the amygdala to the hypothalamaus travel via what? |
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Definition
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Term
| The link between sensory stimuli and emotion |
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Definition
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Term
| Mediate inborn and acquired emotional responses, particularly fear and anxiety. |
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Definition
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Term
| What does stimulation of the amygdala result in? |
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Definition
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Term
| Name 3 physical reactions that occur with stimulation of the amygdala. |
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Definition
1. increased HR
2. increased respiration
3. pupillary dilation (sympathetic response) |
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Term
| Autonomic responses mediated via connections of amygdala with __ |
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Definition
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Term
| Conscious feelings mediated via connections with cingulate gyrus and __ |
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Definition
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Term
| What would bilateral lesions of the amygdala result in? |
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Definition
| Placidity, flat affect, no response to threatening situations |
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Term
| A degenerative disorder where you have calcium disposition in the amygdala and become unable to discern fear in facial expression of others. |
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Definition
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Term
| What does Kluver-Bucy Syndrome result from? |
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Definition
| Bilateral removal of temporal lobes |
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Term
| Unable to recognize objects by sight; due to damage to the visual association areas in temporal cortex; no due to amygdala damage |
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Definition
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Term
| Tendency to examine objects excessively by mouth |
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Definition
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Term
| Compulsion to intensively explore immediate environment |
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Definition
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Term
| Excessive eating, even when not hungry, may eat innappropriate objects |
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Definition
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Term
| With this syndrome you will see visual agnosia, hyperorality, hypermetamorphosis, placidity and fearless, hyperphagia, and hypersexuality. |
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Definition
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