An ERP study of cognitive architecture and the insertion of mental processes: Donders revisited.
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| Title: | An ERP study of cognitive architecture and the insertion of mental processes: Donders revisited. |
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| Authors: | Vidal, Franck (AUTHOR), Burle, Boris (AUTHOR), Grapperon, Jacques (AUTHOR), Hasbroucq, Thierry (AUTHOR) |
| Source: | Psychophysiology. Sep2011, Vol. 48 Issue 9, p1242-1251. 10p. 1 Diagram, 5 Graphs. |
| Subjects: | Reaction time, Tasks, Evoked potentials (Electrophysiology), Laplacian operator, Cognition, Sensorimotor integration |
| Abstract: | In his seminal paper, Donders proposed that Choice reaction time (RT) tasks differ from Go/No-go RT tasks only by the insertion of a response decision operation. We evaluated this possibility by comparing the time course of Laplacian-transformed ERPs, recorded over the primary (M1s) and supplementary motor areas (SMAs) in a Choice and in a Go/No-go task. Laplacian-transformed ERPs showed that a component that develops over the SMAs during the RT of Choice tasks vanishes in our Go/No-go task. This indicates that a process, absent in the Go/No-go task, was 'inserted' in the Choice task. The Choice versus Go/No-go manipulation also modified the motor command: the activity recorded over M1s and the delay separating EMG onset from response completion depended on the nature of the task. This indicates that, although a process was inserted in the Choice task, it was not 'purely' inserted, contrary to Donders' initial assumption. [ABSTRACT FROM AUTHOR] |
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| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | In his seminal paper, Donders proposed that Choice reaction time (RT) tasks differ from Go/No-go RT tasks only by the insertion of a response decision operation. We evaluated this possibility by comparing the time course of Laplacian-transformed ERPs, recorded over the primary (M1s) and supplementary motor areas (SMAs) in a Choice and in a Go/No-go task. Laplacian-transformed ERPs showed that a component that develops over the SMAs during the RT of Choice tasks vanishes in our Go/No-go task. This indicates that a process, absent in the Go/No-go task, was 'inserted' in the Choice task. The Choice versus Go/No-go manipulation also modified the motor command: the activity recorded over M1s and the delay separating EMG onset from response completion depended on the nature of the task. This indicates that, although a process was inserted in the Choice task, it was not 'purely' inserted, contrary to Donders' initial assumption. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00485772 |
| DOI: | 10.1111/j.1469-8986.2011.01186.x |
