Accession Number:

AD0720814

Title:

A Diffusely Preprogrammed but Sharply Trainable Hippocampus Model.

Descriptive Note:

Interim scientific rept. no. 14,

Corporate Author:

MICHIGAN STATE UNIV EAST LANSING DIV OF ENGINEERING RESEARCH

Personal Author(s):

Report Date:

1971-01-12

Pagination or Media Count:

18.0

Abstract:

It is postulated that one main function of the cerebral fornices during a mammals behavior-formative period is to signal, from the CA3 sector of the hippocampus, decisions on species-typical acts within gross modes of behavior as determined by the core of the reticular formation. The gross mode is communicated over temporo-ammonic paths into the distal apical dendrites of CA3 pyramids. Sensory input patterns from all modalities are signaled over the mossy fibre system into the proximal apical dendrites of CA3 pyramids after the sensa have been habituation-filtered through the fascia dentata. By means of septo-fornical reinforcement signals, CA3s innate responses are progressively sharpened, functionally and anatomically, from diffuse patterns involving most of CA3s circuitry to well localized specific responses. Results obtained while simulating a circuit model of CA3 on a digital computer have shaped arguments leading to new operational principles for a diffusely preprogrammed but sharply trainable CA3 model. Author

Subject Categories:

  • Anatomy and Physiology
  • Bionics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE