Stop! - The automatic tendency of action, inhibition and frontal activation in individuals with alcohol-use disorder in abstinence.
Int J Psychophysiol
; 158: 123-135, 2020 12.
Article
em En
| MEDLINE
| ID: mdl-33075432
ABSTRACT
Studying the functioning of the frontal lobe during the performance of an inhibitory activity according to automatic tendency of action would allow a better understanding of the relationship between the reflexive and impulsive system described in the dual-process models. This study aims to prove which is the inhibitory capacity and the underlying brain activity of people with alcohol-use disorder in abstinence with a greater avoidance tendency compared to those with a higher approach tendency and healthy controls. In order to group participants with AUD, the total approach/avoidance index (TAAI) - obtained from the modified alcohol approach/avoidance task - was used, therefore resulting in three groups TAAI- (TAAI < Percentile 35 nâ¯=â¯20), TAAI± (TAAIâ¯=â¯Percentile 35-65 nâ¯=â¯20) and TAAI+ (TAAI > Percentile 65 nâ¯=â¯20). In addition to this, 15 healthy controls were recruited. They all had an electroencephalographic recording while completing the modified stop-signal task. The results showed that the TAAI+ group had a worse inhibition compared to healthy controls. Moreover, the TAAI+ group showed a hyperactivation of the inferior frontal gyrus, precentral gyrus and orbital gyrus compared to the healthy controls group and the TAAI- group. The results obtained reflect that those people with AUD with a tendency to approach alcohol have a worse inhibitory capacity and a frontal hyperactivation. Moreover, people with AUD with an avoidance tendency to alcohol have also been found to have a similar inhibitory capacity and frontal activation to healthy controls.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Alcoolismo
/
Inibição Psicológica
Limite:
Humans
Idioma:
En
Revista:
Int J Psychophysiol
Ano de publicação:
2020
Tipo de documento:
Article