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Titolo:
SYNCHRONOUS MODULATION OF PERIRHINAL CORTEX NEURONAL-ACTIVITY DURING CHOLINERGICALLY MEDIATED (TYPE-II) HIPPOCAMPAL THETA
Autore:
MUIR GM; BILKEY DK;
Indirizzi:
UNIV OTAGO,DEPT PSYCHOL,POB 56 DUNEDIN 9001 NEW ZEALAND UNIV OTAGO,DEPT PSYCHOL DUNEDIN 9001 NEW ZEALAND
Titolo Testata:
Hippocampus (New York, N.Y.)
fascicolo: 5, volume: 8, anno: 1998,
pagine: 526 - 532
SICI:
1050-9631(1998)8:5<526:SMOPCN>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
LONG-TERM POTENTIATION; URETHANE-ANESTHETIZED RATS; SOURCE DENSITY ANALYSIS; LOBE MEMORY SYSTEM; ENTORHINAL CORTEX; PHASE-RELATIONS; DENTATE GYRUS; BEHAVING RAT; PARAHIPPOCAMPAL CORTEX; PATTERNED STIMULATION;
Keywords:
THETA RHYTHM; SINGLE UNIT; SYNCHRONY; URETHANE-ANESTHETIZED; MEMORY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
71
Recensione:
Indirizzi per estratti:
Citazione:
G.M. Muir e D.K. Bilkey, "SYNCHRONOUS MODULATION OF PERIRHINAL CORTEX NEURONAL-ACTIVITY DURING CHOLINERGICALLY MEDIATED (TYPE-II) HIPPOCAMPAL THETA", Hippocampus (New York, N.Y.), 8(5), 1998, pp. 526-532

Abstract

The perirhinal cortex (PRC) plays a major role in memory processes. This role may be influenced by activity in the adjacent entorhinal cortex (EC) and hippocampus (HPC), particularly during the processing of spatial information. In the current experiment we sought to determine whether the cholinergically mediated (type II) theta rhythm, which is aprominent electrophysiological feature of both HPC and EC activity, influenced neuronal firing in the PRC of urethane-anesthetized rats. When the spontaneous firing activity of single units recorded in PRC wasrelated to theta recorded from the hippocampal fissure, it was determined that the firing of 50/163 (31%) PRC neurons exhibited a statistically significant phase relationship (mean phase angle = 188 degrees) to HPC theta. Thirty-three (66%) of these neurons tended to fire near the trough, and 17 near the peak, of this activity. These data indicatethat a high proportion of PRC neurons participate in hippocampal-entorhinal theta activity. This activity may support information transmission and storage within and between these structures. (C) 1998 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 12:25:39