This research was funded by a grant from the Israel Science Foundation to Gershon Ben-Shakhar. We thank Tamar Pelet for her assistance in this research.
Interstimulus intervals for skin conductance response measurement
Article first published online: 4 AUG 2010
Copyright © 2010 Society for Psychophysiological Research
Volume 48, Issue 4, pages 437–440, April 2011
How to Cite
Breska, A., Maoz, K. and Ben-Shakhar, G. (2011), Interstimulus intervals for skin conductance response measurement. Psychophysiology, 48: 437–440. doi: 10.1111/j.1469-8986.2010.01084.x
- Issue published online: 1 MAR 2011
- Article first published online: 4 AUG 2010
- (Received April 21, 2010; Accepted May 28, 2010)
- Electrodermal responses;
- Concealed Information Test;
- Interstimulus intervals
This study examined, using the Concealed Information paradigm, whether interstimulus intervals (ISI) typically used for electrodermal measurement can be shortened. An ISI ranging from 16 s to 24 s (with a mean of 20 s) was compared with an ISI shortened by 50% using a within-participants design. It was demonstrated that this shortening had no effect on the differential skin conductance responses to the personally significant details and nearly identical detection efficiency was observed under the 2 ISIs. However, overall responses were attenuated with the shorter ISI. The implications of these results for various types of studies, using skin conductance responses, were discussed.