Related Experiment Video
Updated: May 9, 2026

Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
Published on: March 17, 2019
A sib-pair analysis of impulsivity in bipolar disorder type I
Karla Mathias de Almeida1, Fabiano Gonçalves Nery, Ricardo Alberto Moreno
1Bipolar Disorder Research Program (PROMAN), Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil.
Objective:
The aim of this study was to compare impulsivity among patients with bipolar disorder, their siblings, and healthy controls in order to examine whether impulsivity in bipolar disorder is related to genetic liability for the illness.
Methods:
Using the Barratt Impulsiveness Scale, we assessed 204 subjects: 67 euthymic outpatients with bipolar disorder type I, 67 siblings without bipolar disorder, and 70 healthy controls.
Results:
Impulsivity scores were higher among patients with bipolar disorder than among healthy controls. Siblings showed higher motor impulsivity scores than did healthy controls.
Conclusions:
Our results suggest that motor impulsivity may be a vulnerability marker for bipolar disorder. Our data may contribute to further improve preventive strategies in subjects at high risk for bipolar disorder.
Related Concept Videos
Bipolar Disorder
Borderline Personality Disorder
Genetic and Environmental Contributions
Borderline Personality...
Personality Theory by Eysenck and Eysenck
In the extroversion/introversion dimension, highly extroverted people are sociable, outgoing, and easily connect with others. In contrast,...
Attention-Deficit/Hyperactivity Disorder
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.
Mania and Antimanic Drugs: Overview
Personality Disorders: Schizotypal and Histrionic
Schizotypal Personality Disorder: Eccentric Behavior and Social Withdrawal
Schizotypal personality disorder is marked by odd or eccentric...

