Jentzsch, I., Leuthold, H. and Ridderinkhof, K.R. (2004) Beneficial effects of ambiguous precues: parallel motor preparation or reduced premotoric processing time? Psychophysiology, 41(2), pp. 231-244. (doi: 10.1111/j.1469-8986.2004.00155.x)
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Abstract
The present study was designed to investigate the mechanisms underlying movement preprogramming in situations where informative but ambiguous precue information is used. In a response precuing task that involved flexion or extension movements with the right or left index finger, a spatially compatible precue conveyed partial information about side, about direction, no parameter information (ambiguous condition), or no information at all. Advance movement preparation was indicated by reaction-time shortening for all informative precue conditions. The analysis of stimulus- and response-locked lateralized readiness potential onsets revealed a clear and exclusive motoric origin of the ambiguous-precue benefit. Additional analyses ruled out a strategic trial by trial choice of just one of the two ambiguous alternatives and provided evidence for a parallel preparation of both response alternatives when information only about direction or ambiguous precue information is provided.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Leuthold, Prof Hartmut |
| Authors: | Jentzsch, I., Leuthold, H., and Ridderinkhof, K.R. |
| Subjects: | B Philosophy. Psychology. Religion > BF Psychology |
| College/School: | College of Science and Engineering > School of Psychology |
| Journal Name: | Psychophysiology |
| ISSN: | 0048-5772 |
| ISSN (Online): | 1469-8986 |
| Published Online: | 09 January 2004 |
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