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Titolo:
Signatures of natural image statistics in cortical simple cell receptive fields
Autore:
Mayer, N; Herrmann, JM; Geisel, T;
Indirizzi:
Max Planck Inst Stromungsforsch, D-37073 Gottingen, Germany Max Planck Inst Stromungsforsch Gottingen Germany D-37073 ingen, Germany
Titolo Testata:
NEUROCOMPUTING
, volume: 38, anno: 2001,
pagine: 279 - 284
SICI:
0925-2312(200106)38:<279:SONISI>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
STRIATE CORTEX; SCENES; MODEL;
Keywords:
visual cortex; receptive held; retinal filter; natural images;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Mayer, N Max Planck Inst Stromungsforsch, Bunsenstr 10, D-37073 Gottingen,Germany Max Planck Inst Stromungsforsch Bunsenstr 10 Gottingen Germany D-37073
Citazione:
N. Mayer et al., "Signatures of natural image statistics in cortical simple cell receptive fields", NEUROCOMPUT, 38, 2001, pp. 279-284

Abstract

Receptive fields of simple cells in visual cortex in cats are known to be shaped like Gabor functions with respect to retinal coordinates. As shown by Miller (J. Neurosci. 14 (1994) 409), oriented receptive fields may emergeprenatally from spontaneous and unspecific retinal activity. On the other hand, a striking resemblance of components of natural images to simple cellreceptive field has been reported by several authors. We demonstrate that it is possible to differentiate between the spontaneous pattern formation scenario and postnatal stimulus-driven self-organization of receptive fields. Analyzing Gabor-fits of computationally generated receptive fields of simple model neurons we conclude that natural-scene stimuli are essential for the explanation of certain features of experimentally measured receptive fields. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/01/20 alle ore 07:08:31