The effect of stimulus intensity on force output in simple reaction time task in humans

• Authors: P. Jaskowski , K. Rybarczyk , F. Jaroszyk , D. Lemanski
• Languages of publication: EN

Abstracts

EN

The force needed to press the key in a simple reaction time task was measured as a function of stimulus intensity for visual and auditory stimuli in the three experiments using a total 45 male and female human objects.Intensity ranged from 0.316 to 1995 cd/sq.m for visual stimuli and from ranged from 47 to 102 dB for auditory stimuli.We found, an in agreement with Angel's original study, that for auditory stimuli higher intensity is accompanied by a larger force.Suprisingly, in the case of visual stimuli the intensity does not influence the force.These findings are explained by the assumption that the changes of force reflect the changes of unspecific activation level evoked by immediate arousal.Thus, the different behaviour of force for these two modalities is in agreement with the common view that loud auditory stimuli are arousing while intense visual ones are not.

Keywords

EN

ACTIVATION; HUMAN SUBJECT; IMMEDIATE AROUSAL; RESPONSE FORCE; SIMPLE REACTION TIME

Discipline

• EXPERIMENTAL_BIOLOGY_&_MEDICINE: EXPERIMENTAL BIOLOGY & MEDICINE

• Publisher: Marceli Nencki Institute of Experimental Biology, Polish Academy of Sciences
• Journal: Acta Neurobiologiae Experimentalis
• Year: 1995
• Volume: 55
• Issue: 1
• Pages: 57-64

Contributors

author

P. Jaskowski

author

K. Rybarczyk

author

F. Jaroszyk

author

D. Lemanski

• Document Type: article
• Publication order reference: P.Jaskowski