Evidence for interhemispheric motor-level transfer in a simple reaction time task: an EEG study

Thut, G. , Hauert, C.-A., Morand, S. , Seeck, M., Landis, T. and Michel, C. (1999) Evidence for interhemispheric motor-level transfer in a simple reaction time task: an EEG study. Experimental Brain Research, 128(1-2), pp. 256-261. (doi: 10.1007/s002210050846) (PMID:10473769)

Abstract

Simple visuomanual reaction time tasks require interhemispheric communication when stimuli are presented in the hemifield opposite the responding hand. Although confirmed in many studies, it is still a matter of debate when, at what functional level and at what site this interhemispheric transfer takes place. To address these questions, we recorded event-related potentials (ERPs) in 12 healthy subjects performing such a task and analyzed the data using techniques based on topographic ERP map characteristics. A method which has proved useful for associating ERP map configurations of different time periods with functional states of the brain was supplemented by a source localization procedure. The results suggest that transfer occurs late in time, on a functional motor level and at frontal sites, at least for left-to-right interhemispheric direction of transfer.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Morand, Dr Stephanie and Thut, Professor Gregor
• Authors: Thut, G., Hauert, C.-A., Morand, S., Seeck, M., Landis, T., and Michel, C.
• College/School: College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience; College of Science and Engineering > School of Psychology
• Journal Name: Experimental Brain Research
• Publisher: Springer
• ISSN: 0014-4819
• ISSN (Online): 1432-1106