Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Stability of the memory of eye position in a recurrent network of conductance-based model neurons
Autore:
Seung, HS; Lee, DD; Reis, BY; Tank, DW;
Indirizzi:
MIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139 pt Brain & Cognit Sci, Cambridge, MA 02139 USA Lucent Technol, Bell Labs, Murray Hill, NJ 07974 USA Lucent Technol Murray Hill NJ USA 07974 l Labs, Murray Hill, NJ 07974 USA
Titolo Testata:
NEURON
fascicolo: 1, volume: 26, anno: 2000,
pagine: 259 - 271
SICI:
0896-6273(200004)26:1<259:SOTMOE>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEUS-PREPOSITUS-HYPOGLOSSI; MEDIAL VESTIBULAR NUCLEUS; OCULOMOTOR NEURAL INTEGRATOR; IBOTENIC ACID LESIONS; BRAIN-STEM; ALERT CAT; VESTIBULOOCULAR REFLEX; ABDUCENS NUCLEUS; MUSCIMOL MICROINJECTIONS; ANATOMICAL CONNECTIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
57
Recensione:
Indirizzi per estratti:
Indirizzo: Seung, HS MIT, Dept Brain & Cognit Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA MIT 77 Massachusetts Ave Cambridge MA USA 02139 ge, MA 02139 USA
Citazione:
H.S. Seung et al., "Stability of the memory of eye position in a recurrent network of conductance-based model neurons", NEURON, 26(1), 2000, pp. 259-271

Abstract

Studies of the neural correlates of short-term memory in a wide variety ofbrain areas have found that transient inputs can cause persistent changes in rates of action potential firing, through a mechanism that remains unknown. In a premotor area that is responsible for holding the eyes still during fixation, persistent neural firing encodes the angular position of the eyes in a characteristic manner: below a threshold position the neuron is silent, and above it the firing rate is linearly related to position. Both thethreshold and linear slope vary from neuron to neuron. We have reproduced this behavior in a biophysically plausible network model. Persistence depends on precise tuning of the strength of synaptic feedback, and a relativelylong synaptic time constant improves the robustness to mistuning.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 01:51:33