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Titolo:
Activation of the arousal response can impair performance on a simple motor task
Autore:
Noteboom, JT; Fleshner, M; Enoka, RM;
Indirizzi:
Univ Colorado, Dept Kinesiol & Appl Physiol, Boulder, CO 80309 USA Univ Colorado Boulder CO USA 80309 & Appl Physiol, Boulder, CO 80309 USA
Titolo Testata:
JOURNAL OF APPLIED PHYSIOLOGY
fascicolo: 2, volume: 91, anno: 2001,
pagine: 821 - 831
SICI:
8750-7587(200108)91:2<821:AOTARC>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
FEAR-POTENTIATED STARTLE; TRAIT ANXIETY; ANTICIPATORY ANXIETY; GENDER DIFFERENCES; ACUTE STRESS; NEUROENDOCRINE; NEUROMODULATION; RELIABILITY; SENSITIVITY; STEADINESS;
Keywords:
stressor; steadiness; pinch task; force;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Enoka, RM Univ Colorado, Dept Kinesiol & Appl Physiol, Boulder, CO 80309 USA Univ Colorado Boulder CO USA 80309 ysiol, Boulder, CO 80309 USA
Citazione:
J.T. Noteboom et al., "Activation of the arousal response can impair performance on a simple motor task", J APP PHYSL, 91(2), 2001, pp. 821-831

Abstract

The purpose of this study was to determine the effect of arousal in men and women on the moment-to-moment performance of a simple motor task. We examined the control of a precision task in the presence and absence of imposedstressors. Twenty-nine subjects (14 men, 15 women; 18-44 yr) were randomlyassigned to either a control group or one of two stressor groups, Mental Math or Electric Shock. Subjects presented with Math and Shock stressors, which lasted 10 min, experienced significant increases in cognitive and physiological arousal compared with baseline and control subjects. Heart rate, systolic blood pressure, and electrodermal activity were elevated 5-80% withpresentation of the stressors, whereas diastolic blood pressure and salivary cortisol were unchanged. The greater levels of cognitive and physiological arousal were associated with reductions in steadiness of a pinch grip for the Shock subjects (similar to 130% reduction from baseline) but not for the subjects in the Math group, who experienced heightened arousal but no change in steadiness (10% reduction from baseline). Although women exhibitedmore of a reduction in steadiness than men, the effect was largely unrelated to the magnitude of the change in arousal.

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Documento generato il 18/01/20 alle ore 13:06:19