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Titolo:
Drinking related direct current positive potential shift in the human EEG depends on thirst
Autore:
Hallschmid, M; Wagner, U; Fehm, HL; Born, J;
Indirizzi:
Med Univ Lubeck, Klin Forschergrp Neuroendokrinol, D-23538 Lubeck, GermanyMed Univ Lubeck Lubeck Germany D-23538 dokrinol, D-23538 Lubeck, Germany Univ Bamberg, Bamberg, Germany Univ Bamberg Bamberg GermanyUniv Bamberg, Bamberg, Germany
Titolo Testata:
NEUROSCIENCE LETTERS
fascicolo: 3, volume: 311, anno: 2001,
pagine: 173 - 176
SICI:
0304-3940(20011005)311:3<173:DRDCPP>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
CEREBRAL-CORTEX; BEHAVIOR;
Keywords:
thirst; direct current-potential; cortical excitability; reward; motivation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Hallschmid, M Med Univ Lubeck, Klin Forschergrp Neuroendokrinol, Ratzeburger Allee 160,Haus 23A, D-23538 Lubeck, Germany Med Univ Lubeck Ratzeburger Allee 160,Haus 23A Lubeck Germany D-23538
Citazione:
M. Hallschmid et al., "Drinking related direct current positive potential shift in the human EEG depends on thirst", NEUROSCI L, 311(3), 2001, pp. 173-176

Abstract

Scalp recorded direct current (DC)-potential shifts were examined in 11 human subjects who had either thirsted for 16 h or had quenched thirst beforerecordings. The recording epoch included a 3-min baseline, an interval of about 5 min during which subjects drank 400 ml of water, and a 7-min post-drinking interval. Consistent with previous data, when thirsty, subjects displayed a widespread negative DC-potential shift during drinking which was replaced by a positive DC shift at the transition to the post-drinking interval. The positivity after drinking lasted for about 2 min and averaged 146 LV at frontal recording sites. Quenching thirst before recordings reduced the positive DC-potential shift upon drinking, whereas changes in preceding drinking related DC negativity appeared to be secondary. The post-drinking positive DC-potential shift depending on the subject's motivational state can be considered an indicator of reward associated with quenching thirst, pointing to a lowered frontocortical excitability during reward. (C) 2001 Published by Elsevier Science Ireland Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 19:34:10