- Title
- Conflict and inhibition in the cued-Go/NoGo task
- Creator
- Randall, William M.; Smith, Janette L.
- Relation
- Clinical Neurophysiology Vol. 122, Issue 12, p. 2400-2407
- Publisher Link
- http://dx.doi.org/10.1016/j.clinph.2011.05.012
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2011
- Description
- Current debate centres on the inhibitory and conflict interpretations of the N2 and P3 components of the event-related potential (ERP). We examined behavioural responses and ERPs in a cued-Go/NoGo task. Participants were required to inhibit a planned response (NoGo target after Go cue), change a planned response to a different one (Invalid cueing), and activate an unexpected response (Go target after NoGo cue). Responses were slower when participants had to change a planned response, and execute an unplanned response. N2 was more negative whenever the presented target required a different response to what was expected based on the cue. In contrast, P3 was increased when participants had to change or inhibit a planned response, but not when executing a response where none was planned. N2 results lend support to the conflict account, while P3 reflects cancellation of a planned response. This paper provides the first test of conflict involving activation of an unplanned response in a cued-Go/NoGo task.
- Subject
- N2; P3; Go/NoGo; conflict; inhibition
- Identifier
- http://hdl.handle.net/1959.13/1063927
- Identifier
- uon:17416
- Identifier
- ISSN:1388-2457
- Language
- eng
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