Adrenaline and Noradrenaline: Relation to Performance in a Visual Vigilance Task

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Science  22 Oct 1965:
Vol. 150, Issue 3695, pp. 507-509
DOI: 10.1126/science.150.3695.507


Concentrations of adrenaline and noradrenaline in the circulating blood were measured in blood samples taken from subjects as they performed a visual vigilance task or viewed movies, both under identical conditions. For those subjects whose vigilance performance deteriorated it was concluded that the concentration of circulating adrenaline decreases as a function of time in a vigilance task but not under "relaxed" conditions, such as watching motion pictures. crementers under "relaxed"conditions.