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Related Experiment Video

Updated: Jul 16, 2026

Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats

Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats

Published on: March 17, 2019

Specific pattern of attentional changes in impulsive individuals.

Franck J Baylé¹, Claire Daban, Dominique Willard

¹Université Paris V, Service Hospitalo-Universitaire de Santé Mentale et Thérapeutique, Hôpital Sainte-Anne, Paris, France. bayle@chsa.broca.inserm.fr

Cognitive Neuropsychiatry

|March 14, 2007

Summary

Highly impulsive individuals exhibit persistent readiness to act and struggle with attentional control, showing hyperreactivity to signals. This suggests impulsivity impacts cognitive functions like attention and action preparation.

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Area of Science:

Cognitive Neuroscience
Psychopathology

Background:

Impulsivity is a key psychopathological feature with debated cognitive correlates.
Understanding cognitive factors in impulsivity is crucial for psychopathological research.

Purpose of the Study:

To investigate cognitive correlates of impulsivity, specifically readiness to act and attentional engagement.
To compare cognitive performance in healthy individuals with high impulsivity (HI) versus low impulsivity (LI).

Main Methods:

Selected participants with HI and LI scores from the Barratt's Impulsivity Scale (BIS).
Assessed motor preparation using a Choice Reaction Time (CRT) task with varying warning signal delays.
Evaluated attentional engagement and fixation maintenance using a Cued Target Detection (CTD) task.

Main Results:

HI participants showed a shortened reaction time in the 2000 ms CRT condition, indicating sustained readiness to act.
HI individuals demonstrated reduced attentional reinforcement in the CTD overlap condition.
HI participants exhibited hyperreactivity to visual stimuli compared to LI participants.

Conclusions:

Impulsivity is linked to heightened reactivity to warning and cue signals.
Individuals with high impulsivity struggle to maintain attentional fixation.
Cognitive deficits in action preparation and attention are associated with impulsivity.