Hippocampus Flashcards
Patient name of hippocampal dissections, and the result
HM (Henry Molaison (1926-2008)). anterorgrade amnesia
Fimbria - Fornix Pathway
- major conduit for subcortical
afferent and efferent
connections. - example: inputs from
raphe and locus
coeruleus - fimbria - latin for fringe
- fornix - latin for arch
Form/Function: Dentate Gyrus
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.
Form/Function CA3
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
Form/Function CA1
Intermediate memory
* Emphasis on retrieval of
information
* Associations across time
* Temporal pattern separation
* Temporal pattern completion
in sequence learning (in
conjunction with CA3)
In which area of the brain do grid cells exist?
Entorhinal Cortex