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Titolo:
Neural coding of naturalistic motion stimuli
Autore:
Lewen, GD; Bialek, W; van Steveninck, RRD;
Indirizzi:
NEC Res Inst, Princeton, NJ 08540 USA NEC Res Inst Princeton NJ USA 08540NEC Res Inst, Princeton, NJ 08540 USA
Titolo Testata:
NETWORK-COMPUTATION IN NEURAL SYSTEMS
fascicolo: 3, volume: 12, anno: 2001,
pagine: 317 - 329
SICI:
0954-898X(200108)12:3<317:NCONMS>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATERAL GENICULATE-NUCLEUS; INFORMATION-TRANSMISSION; AUDITORY NEURONS; SPIKE TRAINS; SCENES; INTERNEURONS; ADAPTATION; RESPONSES; SYSTEM; VISION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Lewen, GD NEC Res Inst, 4 Independence Way, Princeton, NJ 08540 USA NEC Res Inst 4 Independence Way Princeton NJ USA 08540 08540 USA
Citazione:
G.D. Lewen et al., "Neural coding of naturalistic motion stimuli", NETWORK-COM, 12(3), 2001, pp. 317-329

Abstract

We study a wide-field motion-sensitive neuron in the visual system of the blowfly Calliphora vicina. By rotating the fly on a stepper motor outside in a wooded area, and along an angular motion trajectory representative of natural flight, we stimulate the fly's visual system with input that approaches the natural situation. The neural response is analysed in the frameworkof information theory, using methods that are free from assumptions. We demonstrate that information about the motion trajectory increases as the light level increases over a natural range. This indicates that the fly's brain utilizes the increase in photon flux to extract more information from thephotoreceptor array, suggesting that imprecision in neural signals is dominated by photon shot noise in the physical input, rather than by noise generated within the nervous system itself.

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Documento generato il 25/01/20 alle ore 16:08:37