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Titolo:
The effects of nicotine on the 13 Hz steady-state visually evoked potential
Autore:
Thompson, JC; Tzambazis, K; Stough, C; Nagata, K; Silberstein, RB;
Indirizzi:
Swinburne Univ Technol, Brain Sci Inst, Hawthorn, Vic 3125, Australia Swinburne Univ Technol Hawthorn Vic Australia 3125 n, Vic 3125, Australia Res Inst Brain & Blood Vessels, Dept Neurol, Akita, Japan Res Inst Brain &Blood Vessels Akita Japan s, Dept Neurol, Akita, Japan
Titolo Testata:
CLINICAL NEUROPHYSIOLOGY
fascicolo: 9, volume: 111, anno: 2000,
pagine: 1589 - 1595
SICI:
1388-2457(200009)111:9<1589:TEONOT>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
CIGARETTE-SMOKING; ALPHA-RHYTHM; MEMORY TASK; HUMAN BRAIN; HEART-RATE; EEG; FACILITATION; RECEPTORS; FREQUENCY; RESPONSES;
Keywords:
smoking; nicotine; evoked potentials; electroencephalography; steady-state visually evoked potential; brain topography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
52
Recensione:
Indirizzi per estratti:
Indirizzo: Thompson, JC Swinburne Univ Technol, Brain Sci Inst, 400 Burwood Rd, Hawthorn, Vic 3125, Australia Swinburne Univ Technol 400 Burwood Rd Hawthorn VicAustralia 3125
Citazione:
J.C. Thompson et al., "The effects of nicotine on the 13 Hz steady-state visually evoked potential", CLIN NEU, 111(9), 2000, pp. 1589-1595

Abstract

Objectives: The: high alpha/low beta range of the spontaneous EEG appears to be particularly sensitive to the effects of nicotine. The present study examined the acute effects of nicotine on the topography of the 13 Hz steady-state visually evoked potential (SSVEP). Methods: Thirteen moderate smokers participated in a repeated-measures design. The amplitude and latency of the SSVEP elicited by an unstructured sinusoidal 13 Hz flicker following a <0.05 mg nicotine cigarette were comparedto those following a 0.8 mg nicotine cigarette. Results: The nicotine condition was associated with an increase in the amplitude of the SSVEP, when compared to the placebo condition, and this increase was greatest in central and right parietal regions. The latency of the SSVEP was reduced in the nicotine condition in bilateral frontal and right parietal regions. Conclusions: These results are similar to the effects of nicotine seen in studies examining spontaneous EEG, and are consistent with other studies indicating that the 13 Hz SSVEP indexes brain electrical activity in the highalpha/low beta range. The findings are discussed in terms of possible functional significance of nicotine-induced cortical activation in this frequency range. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 06:48:13