TY - JOUR
T1 - Multidimensional assessments of impulsivity in subjects with history of suicidal attempts
AU - Wu, Chi Shin
AU - Liao, Shih Cheng
AU - Lin, Keh Ming
AU - Tseng, Meg Mei Chih
AU - Wu, Erin Chia Hsuan
AU - Liu, Shi Kai
PY - 2009/7
Y1 - 2009/7
N2 - Objective: This study aimed to examine whether subjects with history of suicidal attempts had higher impulsivity as measured by neurocognitive tests and self-report questionnaires. The interrelationships among different impulsivity measures were also explored. Methods: Fifty-four nonpsychotic psychiatric inpatients, including 24 subjects with previous history of suicidal attempts and 30 comparison subjects without previous suicidal attempts, completed the self-report Barratt Impulsiveness Scale-11-Chinese version (BIS-11-CH) and 2 neuropsychologic tests of impulsivity: the immediate memory task/delayed memory task (IMT/DMT) and the single key impulsivity paradigm (SKIP). Results: The results indicated that subjects with previous suicidal attempts exhibited higher BIS-11-CH factor 2 (lack of self-control/attentional impulsivity) subscore (P = .02) and more commission errors in IMT (P = .03). However, BIS-11-CH scores and performance indices of IMT/DMT and of SKIP did not correlate with each other. Conclusions: Our findings supported that subjects with previous suicidal attempts had higher impulsivity, which could be revealed by both self-report and neurocognitive measures. However, there is no correlation among self-report, IMT/DMT, and SKIP measures, indicating that they might be measuring different dimensions of impulsivity.
AB - Objective: This study aimed to examine whether subjects with history of suicidal attempts had higher impulsivity as measured by neurocognitive tests and self-report questionnaires. The interrelationships among different impulsivity measures were also explored. Methods: Fifty-four nonpsychotic psychiatric inpatients, including 24 subjects with previous history of suicidal attempts and 30 comparison subjects without previous suicidal attempts, completed the self-report Barratt Impulsiveness Scale-11-Chinese version (BIS-11-CH) and 2 neuropsychologic tests of impulsivity: the immediate memory task/delayed memory task (IMT/DMT) and the single key impulsivity paradigm (SKIP). Results: The results indicated that subjects with previous suicidal attempts exhibited higher BIS-11-CH factor 2 (lack of self-control/attentional impulsivity) subscore (P = .02) and more commission errors in IMT (P = .03). However, BIS-11-CH scores and performance indices of IMT/DMT and of SKIP did not correlate with each other. Conclusions: Our findings supported that subjects with previous suicidal attempts had higher impulsivity, which could be revealed by both self-report and neurocognitive measures. However, there is no correlation among self-report, IMT/DMT, and SKIP measures, indicating that they might be measuring different dimensions of impulsivity.
UR - http://www.scopus.com/inward/record.url?scp=67349228428&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67349228428&partnerID=8YFLogxK
U2 - 10.1016/j.comppsych.2008.09.006
DO - 10.1016/j.comppsych.2008.09.006
M3 - Article
C2 - 19486729
AN - SCOPUS:67349228428
SN - 0010-440X
VL - 50
SP - 315
EP - 321
JO - Comprehensive Psychiatry
JF - Comprehensive Psychiatry
IS - 4
ER -