Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Neural architecture of the electrosensory lateral line lobe: Adaptations for coincidence detection, a sensory searchlight and frequency-dependent adaptive filtering
Autore:
Berman, NJ; Maler, L;
Indirizzi:
Univ Ottawa, Dept Cellular & Mol Med, Ottawa, ON K1H 8M5, Canada Univ Ottawa Ottawa ON Canada K1H 8M5 Mol Med, Ottawa, ON K1H 8M5, Canada
Titolo Testata:
JOURNAL OF EXPERIMENTAL BIOLOGY
fascicolo: 10, volume: 202, anno: 1999,
pagine: 1243 - 1253
SICI:
0022-0949(199905)202:10<1243:NAOTEL>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
WEAKLY ELECTRIC FISH; CENTRAL-NERVOUS-SYSTEM; APTERONOTUS-LEPTORHYNCHUS; GYMNOTIFORM FISH; NUCLEUS-PRAEEMINENTIALIS; DESCENDING CONTROL; GYMNOTOID FISH; CORTICOFUGAL MODULATION; FEATURE-EXTRACTION; FEEDBACK PATHWAY;
Keywords:
coincidence detection; attention; descending feedback; signal filter; neural architecture; electrosensory lateral line lobe; adaptive filtering;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
69
Recensione:
Indirizzi per estratti:
Indirizzo: Berman, NJ Univadatawa, Dept Cellular & Mol Med, 451 Smyth Rd, Ottawa, ON K1H 8M5, Can Univ Ottawa 451 Smyth Rd Ottawa ON Canada K1H 8M5 K1H 8M5, Can
Citazione:
N.J. Berman e L. Maler, "Neural architecture of the electrosensory lateral line lobe: Adaptations for coincidence detection, a sensory searchlight and frequency-dependent adaptive filtering", J EXP BIOL, 202(10), 1999, pp. 1243-1253

Abstract

The electrosensory lateral line lobe (ELL) of weakly electric fish is the only nucleus that receives direct input from peripheral electroreceptor afferents. This review summarises the neurotransmitters, receptors and second messengers identified in the intrinsic circuitry of the ELL and the extrinsic descending direct and indirect feedback pathways, as revealed by recent in vitro and in vivo studies. Several hypotheses of circuitry function are examined on this basis and on the basis of recent functional evidence: (1) fast primary afferent excitatory postsynaptic potentials (EPSPs) and fast granule cell 2 GABA(A) inhibitory postsynaptic potentials (IPSPs) suggest the involvement of basilar pyramidal cells in coincidence detection; (2) voltage-dependent EPSPs and IPSPs, dendritic spike bursts and frequency-dependent synaptic facilitation support a sensory searchlight role for the direct feedback pathway; and (3) the contributions of distal and proximal inhibition, anti-Hebbian plasticity and beam versus isolated fiber activity patterns are discussed with reference to an adaptive spatio-temporal filtering role for the indirect descending pathway.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 13:36:49