Galkin SA, Bokhan NA. [The role of functional brain activity in the impairment of inhibitory control in alcohol dependence].
Zh Nevrol Psikhiatr Im S S Korsakova 2021;
121:67-72. [PMID:
34932288 DOI:
10.17116/jnevro202112111167]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE
Determination of differences in brain function in alcohol-dependent patients with varying degrees of inhibitory control impairment.
MATERIAL AND METHODS
Seventy-five patients with alcohol dependence were examined. The level of inhibitory control was assessed using the Go/No-go test. The background electric activity of the brain was recorded, and the values of spectral power and coherence of theta, alpha, and beta rhythms were analyzed. Two groups of patients - 24 with- and 51 without inhibitory control impairment - were determined.
RESULTS
According to the spectral analysis, high values of alpha rhythm in the frontal-central-parietal-occipital and beta rhythm in the central and left occipital cortex, low values of theta rhythm in the posterior-temporal regions were common for patients with inhibitory control impairment. Visual analysis of the EEG in patients with inhibitory control impairment shows a smoothing of zonal differences in the alpha rhythm, which is not found in patients without the disturbance of inhibitory control. Patients with inhibitory control impairment were characterized by an increase in interhemispheric connections in the alpha and beta frequency ranges and a weakening of intrahemispheric connections on the right in the theta rhythm range.
CONCLUSION
There are significant differences in the functioning of the brain in patients with alcoholism, depending on the presence / absence of inhibitory control impairment.
Collapse