Hippocampus Flashcards

1
Q

Patient name of hippocampal dissections, and the result

A

HM (Henry Molaison (1926-2008)). anterorgrade amnesia

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2
Q
A
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3
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4
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5
Q
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6
Q
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7
Q
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8
Q

Fimbria - Fornix Pathway

A
  • major conduit for subcortical
    afferent and efferent
    connections.
  • example: inputs from
    raphe and locus
    coeruleus
  • fimbria - latin for fringe
  • fornix - latin for arch
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9
Q
A
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10
Q

Form/Function: Dentate Gyrus

A

Conjunctive encoding of
spatial and non-spatial
information to produce a
more orthogonal, sparse, set
of categorized metric spatial
representations.
* Spatial pattern separation
based primarily on metric
information.
* Encoding of new information
(in conjunction with CA3).
* Novelty detection of spatial
information.

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11
Q

Form/Function CA3

A

Short-term memory
* Emphasis on rapid encoding
of new information
* Emphasis on acquisition/
encoding of new information
associated with multiple
trials
* Arbitrary associations with
an emphasis on a spatial
component
* Object-spatial and temporal-
spatial pattern completion

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12
Q

Form/Function CA1

A

Intermediate memory
* Emphasis on retrieval of
information
* Associations across time
* Temporal pattern separation
* Temporal pattern completion
in sequence learning (in
conjunction with CA3)

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13
Q
A
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14
Q

In which area of the brain do grid cells exist?

A

Entorhinal Cortex

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15
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16
Q
A