Anderson

Andrews

Arnett

Barone

Beck

Berman

Bornstein

Boulenger

Bruce

Bättig

Cameron

Charney

D'Amicis

Daly

Davidson

Deborah Matica

Drewe

Edwards

Erikson

Evans

Eysenck

Feldman

Foreman

Garrett

Gilbert

Hasenfratz

Heaton

Heishman

Henik

Hertz

Hindmarch

Hughes

James

Janine Brooks

Julien

Kenemans

Lane

Loke

Lyvers

MacLeod

Malloy

Maltzman

Mathew

Meyer

Michael Lyvers

Milner

Mountain

Nehlig

Newman

Osman

Patat

Phillips-Bute

Quinlan

Rees

Richardson

Riedel

Robelin

Rogers

Rusted

Smith

Spielberger

SPSS Inc.

Stelt

Stewart

Stuss

Till

Warburton

White

Zahn

English

Crossref

Effects of caffeine on cognitive and autonomic measures in heavy and light caffeine consumers

Caffeine effects on arousal and cognition were assessed in relation to habitual caffeine intake. After drinking either decaffeinated coffee or decaffeinated coffee plus 300 mg caffeine, 22 heavy caffeine consumers (HCCs) and 26 light caffeine consumers (LCCs) were examined on various cognitive, autonomic, and anxiety measures. In LCCs only, caffeine significantly improved performance of the Wisconsin Card Sorting Test, and significantly increased state anxiety scores. Caffeine significantly increased spontaneous skin conductance responses in HCCs and LCCs alike. The HCCs and LCCs did not differ on measures of trait anxiety or neuroticism. Results are discussed in terms of the cognitive enhancing and nonspecific arousing effects of caffeine in relation to caffeine tolerance.</p

Effects of caffeine on cognitive and autonomic measures in heavy and light caffeine consumers

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