Low temporal precision for high impulsive individuals |
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| Institution: | 1. Behavioural and Social Neuroscience Research Group, Central European Institute of Technology — Masaryk University, Brno, Czech Republic;2. Department of Psychiatry, University of Montreal, Centre de recherche de l''Institut Universitaire de Gériatrie de Montreal, Montreal, Canada;3. Centre for Research in Aging, Donald Berman Maimonides Geriatric Centre, Montreal, Canada;4. Department of Psychiatry, Faculty of Medicine of the Masaryk University and University Hospital Brno, Brno, Czech Republic;5. Department of Radiology, Faculty of Medicine of the Masaryk University and University Hospital Brno, Brno, Czech Republic;6. First Department of Neurology, Faculty of Medicine of the Masaryk University and St. Anne''s University Hospital, Brno, Czech Republic |
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| Abstract: | Previous studies have shown that impulsive people perceive time differently from non-impulsive people. However, these studies either recruited participants from the clinical population or used impulsive behavior (rather than impulsivity trait itself) as the index of impulsivity. We investigated the relationship between time perception and self-report impulsivity trait (measured by the Barratt Impulsiveness Scale; BIS-11) in non-patient participants. We used the oddball paradigm to measure subjective duration and discrimination precision in high- and low-impulsive groups. Results show that high impulsive participants’ discrimination precision was lower than low impulsive participants (Experiment 1). The possibility that this is due to high impulsive participants having weaker attentional maintenance of the task was excluded (Experiment 2). By removing potentially confounding factors that existed in previous studies, our results demonstrate a more convincing relationship between temporal precision and the impulsivity trait in healthy participants. |
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| Keywords: | Impulsivity Time expansion Time perception Oddball paradigm Attention |
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