To evaluate how personality traits are associated with
occasional use, abuse, and dependence of alcohol, cannabis, cocaine,
benzodiazepines, and hallucinogens in a large availability sample of adults via
online questionnaires.
The sample consisted of 8,646 individuals (24.7% men and
75.3% women) who completed an anonymous web survey. Involvement with drugs and
temperament/character traits were assessed through the Alcohol, Smoking and
Substance Involvement Screening Test (ASSIST) and the Temperament and Character
Inventory - Revised (TCI-R), respectively. Interactions among variables were
analyzed using MANOVA with Bonferroni adjustment.
Novelty seeking was the trait most associated with increased
involvement with alcohol, cannabis, and cocaine. There was a significant association
between harm avoidance and benzodiazepine use. Persistence was lower in
cannabis-, benzodiazepine-, and cocaine-dependent subjects, as well as in
hallucinogen abusers. Self-directedness was reduced in dependents of all drug
classes. No strong relationships were found between other temperament or
character dimensions and the severity of drug use.
Novelty seeking was associated with increased involvement
with all drugs studied in this sample, although to a lesser extent with
benzodiazepines and hallucinogens. The temperament and character profile for
benzodiazepine use was different from that of other drugs due to the
relationship with higher harm avoidance and self-transcendence and lower
self-directedness.
Below: Hallucinogens
Below: Benzodiazepines
Below: Cannabis
Full article
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By:
- 1Department of Pharmacology and Graduate Program in Neurosciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
- 2School of Biosciences, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil.
- 3School of Psychology, Universidade de Federal de Pelotas (UFPEL), Pelotas, RS, Brazil.
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