^BBSnline

The Hebbian paradigm reintegrated: local reverberations as internal representations

Amit, Daniel J. (1995) The Hebbian paradigm reintegrated: local reverberations as internal representations.

Short Abstract:

In Hebb's cell-assembly theory, learning dynamics stabilize such self-maintaining reverberations. Quasi-quantitive modelling of the experimental data on internal representations in association-cortex modules identifies the reverberations (delay spike activity) as the internal code (representation). This leads to cognitive and neurophysiological predictions, many following directly from the language used to describe the activity in the experimental delay period, others from the details of how the model captures the properties of the internal representations.

Long Abstract:

The neurophysiological evidence from Miyashita et al.'s experiments on monkeys as well as cognitive experience common to us all suggests that local neuronal spike rate distributions might persist in the absence of their eliciting stimulus. In Hebb's cell-assembly theory, learning dynamics stabilize such self-maintaining reverberations. Quasi-quantitive modelling of the experimental data on internal representations in association-cortex modules identifies the reverberations (delay spike activity) as the internal code (representation). This leads to cognitive and neurophysiological predictions, many following directly from the language used to describe the activity in the experimental delay period, others from the details of how the model captures the properties of the internal representations.

Keywords:	active memory, associative cortex, attractor dynamics, content sensitivity, internal representations, learning, modeling
Subjects:	Psychology: Cognitive Psychology Neuroscience: Computational Neuroscience Psychology: Learning and Memory Neuroscience: Neuropsychology Psychology: Physiological Psychology Psychology: Psychobiology
ID code:	bbs00000421
Deposited by:	Daniel Amit on 30 April 2001