Processing of Temporal and Nontemporal Information as Predictors of Psychometric Intelligence: A Structural-Equation-Modeling Approach


  • This research was supported by Deutsche Forschungsgemeinschaft Grants Ra 450/14–1 and Ra 450/14–2. The authors thank Michael D. Robinson and Robert M. Stelmack for helpful comments and suggestions.

concerning this article should be addressed to Thomas Rammsayer, Department of Psychology, University of Bern, Muesmattstrasse 45, CH-3000 Bern 9, Switzerland; E-mail:


ABSTRACT Recent research suggests a functional link between temporal acuity and general intelligence. To better understand this relation, the present study took advantage of a large sample (N=260) and structural equation modelling to examine relations among temporal acuity, measured by various tasks, speed of information processing as measured by the Hick reaction time task, and psychometric intelligence. Temporal acuity and the Hick task showed common variance in predicting psychometric intelligence. Furthermore, timing performance was a better predictor of psychometric intelligence and mediated the relation between Hick task performance and psychometric intelligence. These findings are consistent with the idea that temporal acuity reflects a basic property of neural functioning that is relevant to intelligence-related aspects of mental activity including speed of information processing.