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Titolo:
Stimulus optimisation in primary visual cortex
Autore:
Foldiak, P;
Indirizzi:
Univ St Andrews, Sch Psychol, St Andrews KY16 9JU, Fife, Scotland Univ St Andrews St Andrews Fife Scotland KY16 9JU Y16 9JU, Fife, Scotland
Titolo Testata:
NEUROCOMPUTING
, volume: 38, anno: 2001,
pagine: 1217 - 1222
SICI:
0925-2312(200106)38:<1217:SOIPVC>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
RECEPTIVE-FIELDS; STRIATE CORTEX;
Keywords:
stimulus optimisation; response selectivity; V1; non-linear optimisation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
5
Recensione:
Indirizzi per estratti:
Indirizzo: Foldiak, P Univ St Andrews, Sch Psychol, St Andrews KY16 9JU, Fife, Scotland Univ St Andrews St Andrews Fife Scotland KY16 9JU fe, Scotland
Citazione:
P. Foldiak, "Stimulus optimisation in primary visual cortex", NEUROCOMPUT, 38, 2001, pp. 1217-1222

Abstract

A computational method is introduced for finding effective stimuli for sensory neurons. In single unit recording experiments, it maximises simultaneously recorded responses by changing stimuli along an estimated gradient with respect to stimuli. The estimate is the correlation between noise added to an evolving base stimulus and the response. Pixel optimisation for monkeyV1 rapidly produces stimuli consistent with conventionally determined tuning even for complex cells. For the same complex cell, repeated runs of the optimisation gave solutions with different phase. Unlike reverse correlation, this method is applicable to non-linear, context-sensitive cells, possibly also in higher sensory areas. (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 25/01/20 alle ore 03:16:27