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Titolo:
Scalp recorded direct current (DC) potential shifts associated with food intake in hungry humans
Autore:
Schmitt, B; Molle, M; Marshall, L; Hallschmid, M; Born, J;
Indirizzi:
Med Univ Lubeck, Dept Clin Neuroendocrinol, D-23538 Lubeck, Germany Med Univ Lubeck Lubeck Germany D-23538 docrinol, D-23538 Lubeck, Germany Univ Bamberg, Dept Physiol Psychol, Bamberg, Germany Univ Bamberg Bamberg Germany rg, Dept Physiol Psychol, Bamberg, Germany
Titolo Testata:
BEHAVIOURAL BRAIN RESEARCH
fascicolo: 1, volume: 119, anno: 2001,
pagine: 85 - 92
SICI:
0166-4328(20010215)119:1<85:SRDC(P>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
CAUDOLATERAL ORBITOFRONTAL CORTEX; POSITRON-EMISSION-TOMOGRAPHY; SINGLE NEURONS; MACAQUE MONKEY; RESPONSES;
Keywords:
hunger; satiety; cortical excitability; reward;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Born, J Med Univ Lubeck, Dept Clin Neuroendocrinol, Ratzeburger Allee 160,Haus 23A, D-23538 Lubeck, Germany Med Univ Lubeck Ratzeburger Allee 160,Haus 23A Lubeck Germany D-23538
Citazione:
B. Schmitt et al., "Scalp recorded direct current (DC) potential shifts associated with food intake in hungry humans", BEH BRA RES, 119(1), 2001, pp. 85-92

Abstract

In humans, eating is assumed to be regulated within a neuronal circuitry integrating hypothalamic 'feeding centers' with neocortical regions. Here, DC potentials were recorded in food deprived men to demonstrate a graded tuning of neocortical excitability in conjunction with meal ingestion. In the beginning of food ingestion a pronounced negative DC potential shift developed (P < 0.01) which was replaced by a gradual positive potential shift reaching a maximum within 5 min after cessation of food intake (P < 0.05). Both negative and positive shifts showed a widespread cortical distribution. The initial negative DC potential presumably reflecting increased depolarisation of apical cortical dendrites, may serve to facilitate eating behavior. The succeeding positivity points to a growing inhibitory influence on cortical processing with increasing satiety that may support termination of meal intake. (C) 2001 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 08/04/20 alle ore 07:28:43