Intelligence and the psychological refractory period: A lateralized readiness potential study

Troche, Stefan J.; Indermühle, Rebekka; Leuthold, Hartmut; Rammsayer, Thomas H. (2015). Intelligence and the psychological refractory period: A lateralized readiness potential study. Intelligence, 53(Nov-Dec), pp. 138-144. Elsevier 10.1016/j.intell.2015.10.003

[img] Text
1-s2.0-S0160289615001324-main.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (358kB) | Request a copy

The psychological refractory period (PRP) refers to a delay of response times (RT) to the second of two stimuli when these stimuli are presented in rapid succession. If this limitation of rapidly processing the second stimulus contributes to the well-known differences in speed of information processing between individuals with higher and lower mental ability, individuals with lower mental ability should exhibit a more pronounced PRP effect than individuals with higher mental ability. Previous studies on this question, however, yielded inconsistent results. In the present study, we assessed mental ability-related differences in the PRP by measuring lateralized readiness potentials (LRPs) to separate premotor and motor aspects of speed of information processing in 95 individuals with higher and 95 individuals with lower mental ability. Although individuals with higher mental ability processed information faster than individuals with lower mental ability as indicated by shorter RTs and shorter premotor LRP latencies, the PRP effect was equally pronounced in both groups. These findings suggest that the processes underlying the PRP effect do not contribute to mental ability-related differences in speed of information processing. Rather, these differences seem to occur at an earlier stage of information processing such as stimulus encoding, stimulus analysis, or stimulus evaluation.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Psychology
07 Faculty of Human Sciences > Institute of Psychology > Personality Psychology, Differential Psychology and Diagnostics

UniBE Contributor:

Troche, Stefan; Indermühle, Rebekka and Rammsayer, Thomas

Subjects:

100 Philosophy > 150 Psychology
300 Social sciences, sociology & anthropology > 370 Education

ISSN:

0160-2896

Publisher:

Elsevier

Language:

English

Submitter:

Karin Dubler

Date Deposited:

02 May 2016 15:38

Last Modified:

08 Mar 2019 08:07

Publisher DOI:

10.1016/j.intell.2015.10.003

BORIS DOI:

10.7892/boris.79835

URI:

https://boris.unibe.ch/id/eprint/79835

Actions (login required)

Edit item Edit item
Provide Feedback