Article,

Interactions and range effects in experiments on pairs of stresses: Mild heat and low-frequency noise

, and .
Journal of Experimental Psychology, (1974)

Abstract

Carried out an experiment with 12 enlisted navy men, who performed 3 tasks (a) in 102-db low-frequency noise, (b) at 38./33.C (dry-bulb/wet-bulb temperatures), (c) with the 2 stresses combined, and (d) in a control condition. The 3 tasks were tracking with peripheral lights, the 5-choice task, and visual vigilance, in that order. The low-frequency noise had a beneficial effect upon all 3 tasks. It interacted with the mild heat on the tracking task and on false detections in the vigilance task. Results are related to behavioral arousal. When compared with a previous experiment on mild heat and loss of a night's sleep, performance in the control conditions was found to be influenced by the stresses included in the within-Ss experimental designs. This raises doubts about the validity of the interactions. (26 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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