Intertrial interval duration affects error monitoring

The purpose of this study was to investigate the effect of varying intertrial interval (ITI) durations on neural signals of error monitoring, given the importance of the ITI as a time window for engaging in self‐evaluation and cognitive control. In a between‐subjects design, 35 participants were ass...

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Bibliographic Details
Published in:Psychophysiology 2017-08, Vol.54 (8), p.1151-1162
Main Authors: Compton, Rebecca J., Heaton, Elizabeth, Ozer, Emily
Format: Article
Language:English
Subjects:
alpha rhythm
Alpha Rhythm - physiology
attention
Attention - physiology
Cognition - physiology
Cognitive ability
cognitive control
Cognitive psychology
EEG
Electroencephalography
ERPs
error processing
Evoked Potentials - physiology
Executive Function - physiology
Female
Humans
Intertrial interval
Male
Mismatch negativity
Neuropsychology
Psychomotor Performance - physiology
Reaction Time - physiology
Stroop Test
Time Factors
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Summary:The purpose of this study was to investigate the effect of varying intertrial interval (ITI) durations on neural signals of error monitoring, given the importance of the ITI as a time window for engaging in self‐evaluation and cognitive control. In a between‐subjects design, 35 participants were assigned to one of three ITI durations (short: 768 ms; medium: 1,280 ms; long: 1,792 ms) in a standard Stroop task while EEG was recorded. Participants in the short‐ITI group demonstrated lower performance accuracy, a reduced error‐related negativity (even when correcting for frequency of errors), lower error‐related alpha suppression during the ITI, and increased post‐error slowing. Results indicate that fast‐paced trial timing can be disruptive to self‐monitoring, perhaps due to capacity limitations or bottlenecks in processing.
ISSN:0048-5772
1469-8986
1540-5958
DOI:10.1111/psyp.12877