Attractor-Map Versus Autoassociation Based Attractor Dynamics in the Hippocampal Network

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Attractor-map versus autoassociation based attractor dynamics in the hippocampal network.

The autoassociative memory model of hippocampal field CA3 postulates that Hebbian associations among external input features produce attractor states embedded in a recurrent synaptic matrix. In contrast, the attractor-map model postulates that a two-dimensional continuum of attractor states is preconfigured in the network during development and that transitions among these states are governed p...

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Hippocampal attractor dynamics 2010 - 04 - 16 for re - submission to J . Neurophysiol . 1 1 2 3 4 Attractor - Map Versus Autoassociation Based Attractor Dynamics in 5 the Hippocampal Network 6 7

7 Laura L Colgin, Stefan Leutgeb, Karel Jezek, Jill K Leutgeb, Edvard I Moser, 8 Bruce L McNaughton, May-Britt Moser 9 10 11 12 Kavli Institute for Systems Neuroscience and Centre for the Biology of Memory 13 MTFS 14 Olav Kyrres gate 9 15 Norwegian University of Science and Technology 16 NO-7489 Trondheim 17 Norway 18 Canadian Centre for Behavioural Neuroscience 19 The University of Lethbridge ...

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Attractor Dynamics in Realistic Hippocampal Networks

Autoassociative attractor neural networks1,2 provide a powerful paradigm for the storage and recall of memories, however, their biological plausibility has always remained in question. Given the complexity and variability of biological networks, it seems likely that a “biological” attractor network must be regulated by some control structure. We describe a functional architecture for implementi...

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Memories are thought to be retrieved by attractor dynamics if a given input is sufficiently similar to a stored attractor state [1-5]. The hippocampus, a region crucial for spatial navigation [6-12] and episodic memory [13-18], has been associated with attractor-based computations [5, 9], receiving support from the way rodent place cells "remap" nonlinearly between spatial representations [19-2...

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Attractor Map Theory of the Hippocampal Representation of Space

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ژورنال

عنوان ژورنال: Journal of Neurophysiology

سال: 2010

ISSN: 0022-3077,1522-1598

DOI: 10.1152/jn.00202.2010