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Mood, performance, and pain sensitivity: Changes induced by food constituents

Journal of Psychiatric ResearchPublished 1 January 1982
Harris R. Lieberman, Suzanne Corkin, Bonnie Spring, John H. Growdon, Richard J. Wurtman
Citations122
SJR quartileQ1
SJR score1.49
SNIP1.15

TL;DR

Tryptophan increased subjective drowsiness and fatigue but unlike many hypnotics did not impair sensorimotor performance and decreased human pain sensitivity in a manner that was more specific than certain analgesic drugs.

Abstract

We examined the behavioral effects of the dietary constituents tryptophan and tyrosine on human mood, sensorimotor performance and pain sensitivity. Tryptophan and tyrosine are neurotransmitter precursors present in varying amount in protein-containing foods. Tryptophan (50 mg/kg) increased subjective drowsiness and fatigue but unlike many hypnotics did not impair sensorimotor performance. Tryptophan also decreased human pain sensitivity in a manner that was more specific than certain analgesic drugs.

Keywords

MedicineNeuroscience