INFLUENCE OF CAFFEINE ON SELECTIVE ATTENTION IN WELL-RESTED AND FATIGUED SUBJECTS

被引：89

作者：

LORIST, MM ^{[1
]}

SNEL, J ^{[1
]}

KOK, A ^{[1
]}

MULDER, G ^{[1
]}

机构：

[1] UNIV GRONINGEN,INST EXPTL & OCCUPAT PSYCHOL,GRONINGEN,NETHERLANDS

来源：

PSYCHOPHYSIOLOGY | 1994年 / 31卷 / 06期

关键词：

CAFFEINE; STATE OF THE SUBJECT; VISUAL EVENT-RELATED POTENTIALS; SELECTIVE ATTENTION; MEMORY SEARCH; TARGET DETECTION;

D O I：

10.1111/j.1469-8986.1994.tb02345.x

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

Effects of caffeine were studied in a visual focused selective search task in well-rested and fatigued subjects. A dose of 200 + 50 mg caffeine or placebo, dissolved in decaffeinated coffee, was administered in a double-blind and deceptive fashion. The task was to detect a target letter on one diagonal of a visual display designated as relevant and ignore stimuli presented on the irrelevant diagonal. Behavioral measures were supplemented by event-related potential (ERP) measures. Subjects reacted faster in the caffeine condition. Caffeine enhanced the N1 and the N2b components. Selection of relevant information apparently was more adequate in this condition. Search negativity was not affected by caffeine. Caffeine effects on the P3 elicited by target letters were more pronounced in the fatigued than in the well-rested subjects, indicating that the effects of caffeine are dependent on the state of the subject. The results suggest that caffeine has specific rather than general effects on information processing.

引用

页码：525 / 534

页数：10

共 59 条

[11] Donchin E., 1978, EVENT RELATED BRAIN, V349, P411, DOI [10.1016/b978-0-12-155150-6.50019-5, DOI 10.1016/B978-0-12-155150-6.50019-5]
[12] Eysenck M. W., 1982, ATTENTION AROUSAL
[13] EFFECTS OF METHYLPHENIDATE ON STIMULUS EVALUATION AND RESPONSE PROCESSES - EVIDENCE FROM PERFORMANCE AND EVENT-RELATED POTENTIALS
FITZPATRICK, P
KLORMAN, R
BRUMAGHIM, JT
KEEFOVER, RW
[J]. PSYCHOPHYSIOLOGY, 1988, 25 (03) : 292 - 304
[14] EP COMPONENTS, VISUAL PROCESSING STAGES, AND THE EFFECT OF A BARBITURATE
FROWEIN, HW
GAILLARD, AWK
VAREY, CA
[J]. BIOLOGICAL PSYCHOLOGY, 1981, 13 (1-4) : 239 - 249
[15] FROWEIN HW, 1981, THESIS KATHOLIEKE HO
[16] GAILLARD AWK, 1988, PSYCHOPHARMACOLOGY R, P15
[17] GRIFFITHS RR, 1990, J PHARMACOL EXP THER, V252, P970
[18] GUNTER TC, 1987, CURRENT TRENDS EVE S, V40, P99
[19] HOCKEY GRJ, 1986, ENERGETICS HUMAN INF, P175
[20] HOLDING DH, 1983, STRESS FATIGUE HUMAN, P145

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