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Interpreting hippocampal function as recoding and forecasting
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DOI：10.1016/j.neunet.2005.08.005.png)
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A model of hippocampal function, centered on region CA3, reproduces many of the cognitive and behavioral functions ascribed to the hippocampus. Where there is precise stimulus control and detailed quantitative data, this model reproduces the quantitative behavioral results. Underlying the model is a recoding conjecture of hippocampal computational function. The expanded conjecture includes a special role for randomization and, as recoding progresses with experience, the occurrence of sequence learning and sequence compression. These functions support the putative higher-order hippocampal function, i.e. production of representations readable by a linear decoder and suitable for both neocortical storage and forecasting. Simulations confirm the critical importance of randomly driven recoding and the neurocognitive relevance of sequence learning and compression. Two forms of sequence compression exist, on-line and off-line compression: both are conjectured to support neocortical encoding of context and declarative memory as described by Cohen and Eichenbaum (1993). (c) 2005 Elsevier Ltd. All rights reserved.
Keyword:
prediction
context
recoding
CA3
synaptic modification
randomization
chaotic
cognition
chunking
transverse patterning
transitive inference
trace conditioning
cognitive mapping
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分享收藏Entorhinal/dentate excitation of CA3: A critical variable in hippocampal models.png)
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