We discuss the idea that long range cortico-cortical connections might be the substrate for an autoassociative memory mechanism, whereby features processed locally could be linked together over large portions of neocortex. The simplest version of this idea is shown to be implausibly inadequate in terms of storage capacity; although up to a fraction of a bit could be stored on each synapse, the number of global activity patterns that could be stored and individually retrieved would scale not with the size of the network but, effectively, only with the number of modifiable connections per cell. © 1992 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.

Why the simplest notion of neocortex as an autoassociative memory would not work / O'Kane, Dominic; Treves, Alessandro. - In: NETWORK. - ISSN 0954-898X. - 3:4(1992), pp. 379-384. [10.1088/0954-898X_3_4_002]

Why the simplest notion of neocortex as an autoassociative memory would not work

Treves, Alessandro
1992

Abstract

We discuss the idea that long range cortico-cortical connections might be the substrate for an autoassociative memory mechanism, whereby features processed locally could be linked together over large portions of neocortex. The simplest version of this idea is shown to be implausibly inadequate in terms of storage capacity; although up to a fraction of a bit could be stored on each synapse, the number of global activity patterns that could be stored and individually retrieved would scale not with the size of the network but, effectively, only with the number of modifiable connections per cell. © 1992 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
3
4
379
384
O'Kane, Dominic; Treves, Alessandro
File in questo prodotto:
File Dimensione Formato  
OKa+92b.pdf

non disponibili

Tipologia: Versione Editoriale (PDF)
Licenza: Non specificato
Dimensione 289.79 kB
Formato Adobe PDF
289.79 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11767/85760
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 30
  • ???jsp.display-item.citation.isi??? 26
social impact