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The contribution of executive processes to deceptive responding
Ray Johnson1, Jack Barnhardt, John Zhu
1Department of Psychology, Queens College, 65-30 Kissena Blvd., Flushing, NY 11367, USA.
Neuropsychologia
|March 5, 2004
Summary
Deceptive responses, whether consistent or random, lead to slower reaction times and increased brain activity in the anterior cingulate cortex (ACC). This suggests the ACC plays a crucial role in deception and strategic monitoring.
Area of Science:
- Cognitive Neuroscience
- Psychology
Background:
- Deception involves complex cognitive processes.
- Understanding the neural correlates of deception is crucial for various fields.
Purpose of the Study:
- To investigate the behavioral and neural underpinnings of truthful versus deceptive responses.
- To examine the role of the anterior cingulate cortex (ACC) in deception.
Main Methods:
- Participants performed an old/new recognition test under truthful, consistent deceptive, and random deceptive conditions.
- Behavioral responses (reaction time) and event-related brain potentials (ERPs) were recorded.
- Medial frontal negativity (MFN) was analyzed for patterns related to response type.
Main Results:
- Deceptive responses (both consistent and random) were less accurate, slower, and more variable than truthful responses.
- Deceptive responses elicited larger medial frontal negativities (MFN) compared to truthful responses.
- The random deceptive condition showed significantly slower reaction times and increased MFN activity compared to the consistent deceptive condition.
Conclusions:
- The anterior cingulate cortex (ACC) plays a key role in processing deceptive responses.
- Distinct patterns of brain activity were observed for truthful, deceptive, and strategic monitoring responses.
- MFN reflects activity in the ACC, involved in action monitoring and conflict resolution during deception.