Chapter 12 Neuropsyc
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| anterograde amnesia | impairment in forming new memories
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| retrograde amnesia | inability to remember events prior to impairment
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| consolidation | process in which brain forms a (sorta) permanent physical representation of a memory
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| retreival | process of accessing stored memories-act of remembering
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| place cells | increase rate of firing when individual is in a specific location in the environment, found in hippocampus
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| declarative memory | involves learning that results in memories of facts, ppl, and events a person can verbalize/declare
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| nondeclarative memory | memories for behaviors from procedural/skills learning, emotional learning, and s-r conditioning
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| working memory | provides a temporary register for info while it's being used.
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| Hebb rule | if an axon of a presynaptic neuron is active while the postsynaptic neuron is firing, the synapse between them will be strengthened
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| LTP | persistent strengthening of synapses from simultaneous activation of presynaptic and postsynaptic neurons
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| LTD | decrease in strength of synapses when stimulation of presynaptic neurons is insufficient to activate the postsynaptic neuron.
Modifies mems and clears old mems for new info
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| associative LTP | when weak and strong synapses on same postsynaptic neuron are active simultaneously, the weak one will be potentiated. Basis of CC.
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| dendritic spines | outgrowths from dendrites that partially bridge the synaptic cleft and make synapses more sensitive
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| dementia | substantial loss of memory and other cog abilities, usually in elderly
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| Alzheimer's | most common kind of dementia, characterized by progressive brain deterioration and impaired mem/other cog abilities
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| plaques | clumps of amyloid beta, a type of protein, that cluster among axon terminals and interfere with neural transmission
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| neurofibrillary tangles | formed by accumulation of tau protein inside neurons, associated with brain cell death
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| reserve hypothesis | ppl with greater cog/brain capacity can compensate for brain change due to aging, brain damage, or disorders like Alzheimer's.
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| spontaneous confabulation | fabricate stories/facts to make up for those missing from their memories. Common in those with Korsakoff.
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