The Influence of Caffeine on Anxiety

Barcelona, Spain · May 2026

Posters · Emotion & Motivation: What Drives the Self

Katelyn Garcia
California State University, Fresno
Martin Shapiro
California State University, Fresno

Abstract

Caffeine’s influence on anxiety was measured using self-report and behavioral tasks. Participants (n=100) completed the BAI, PANAS, and the emotional Stroop, Dot-probe, and IAPS rating tasks after consuming caffeine or water. Caffeine increased self-reported anxiety scores on the BAI and decreased response time on all other measures.

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The Influence of Caffeine on Anxiety

Abstract

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