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Titolo:
fMRI studies of visual cortical activity during noise stimulation
Autore:
Simonotto, E; Spano, F; Riani, M; Ferrari, A; Levrero, F; Pilot, A; Renzetti, P; Parodi, RC; Sardanelli, F; Vitali, P; Twitty, J; Chiou-Tan, F; Moss, F;
Indirizzi:
Univ Missouri, Dept Phys & Astron, Ctr Neurodynam, St Louis, MO 63121 USA Univ Missouri St Louis MO USA 63121 tr Neurodynam, St Louis, MO 63121 USA UDR Genova, INFM, I-16146 Genoa, Italy UDR Genova Genoa Italy I-16146UDR Genova, INFM, I-16146 Genoa, Italy Osped San Martino Genova, Serv Fis Med, I-16132 Genoa, Italy Osped San Martino Genova Genoa Italy I-16132 s Med, I-16132 Genoa, Italy Univ Genoa, Ist Radiol, I-16132 Genoa, Italy Univ Genoa Genoa Italy I-16132 v Genoa, Ist Radiol, I-16132 Genoa, Italy Univ Genoa, Dipartimento Sci Motorie & Riabilitat, I-16132 Genoa, Italy Univ Genoa Genoa Italy I-16132 otorie & Riabilitat, I-16132 Genoa, Italy Baylor Coll Med, Dept Phys Med & Rehabil, Houston, TX 77030 USA Baylor Coll Med Houston TX USA 77030 Med & Rehabil, Houston, TX 77030 USA
Titolo Testata:
NEUROCOMPUTING
, volume: 26-7, anno: 1999,
pagine: 511 - 516
SICI:
0925-2312(199906)26-7:<511:FSOVCA>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
STOCHASTIC RESONANCE; CRAYFISH;
Keywords:
stochastic resonance; functional magnetic resonance imaging (fMRI); noise; visual cortex;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Simonotto, E Univ Missouri, Dept Phys & Astron, Ctr Neurodynam, 8001 Nat Bridge Rd, St Louis, MO 63121 USA Univ Missouri 8001 Nat Bridge Rd St Louis MO USA 63121 21 USA
Citazione:
E. Simonotto et al., "fMRI studies of visual cortical activity during noise stimulation", NEUROCOMPUT, 26-7, 1999, pp. 511-516

Abstract

Psychophysics experiments on the human visual system have established thatthe sensitivity for the detection of fine detail in noise contaminated images can be quantitatively and repeatably measured using stochastic resonance as a tool. Optimal noise results in maximal sensitivity. Does this mean simply that the retina is averaging out the noise, or instead is the visual cortex involved in some level of computation? We report results of functional magnetic resonance imaging experiments which indicate the latter. (C) 1999 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 09/04/20 alle ore 00:15:25