Neurophysiological, psychological and behavioural correlates of rTMS treatment in alcohol dependence

Alessandra Del Felice, Elisa Bellamoli, Emanuela Formaggio, Paolo Manganotti, Stefano Masiero, Giuseppe Cuoghi, Claudia Rimondo, Bruno Genetti, Milena Sperotto, Flavia Corso, Giampaolo Brunetto, Francesco Bricolo, Maurizio Gomma, Giovanni Serpelloni

Research output: Contribution to journalArticle

Abstract

Background: Addiction is associated with dorso-lateral prefrontal cortex (DLPFC) dysfunction and altered brain-oscillations. High frequency repetitive transcranial magnetic stimulation (HFrTMS) over DLPFC reportedly reduces drug craving. Its effects on neuropsychological, behavioural and neurophysiological are unclear. Methods: We assessed psychological, behavioural and neurophysiological effects of 4 sessions of 10-min adjunctive HFrTMS over the left DLPFC during two weeks during a residential programme for alcohol detoxification. Participants were randomized to active HFrTMS (10. Hz, 100% motor threshold) or sham. Immediately before the first and after the last session, 32-channels EEG was recorded and alcohol craving Visual Analogue Scale, Symptom Check List-90-R, Numeric Stroop task and Go/No-go task administered. Tests were repeated at 1-month follow-up. Results: 17 subjects (mean age 44.7 years, 4 F) were assessed. Active rTMS subjects performed better at Stroop test at end of treatment (p = 0.036) and follow up (p = 0.004) and at Go-NoGo at end of treatment (p = 0.05) and follow up (p = 0.015). Depressive symptoms decreased at end of active treatment (p = 0.036). Active-TMS showed an overall decrease of fast EEG frequencies after treatment compared to sham (p = 0.026). No significant modifications over time or group emerged for craving and number of drinks at follow up. Conclusion: 4 HFrTMS sessions over two weeks on the left DLPFC can improve inhibitory control task and selective attention and reduce depressive symptoms. An overall reduction of faster EEG frequencies was observed. Nonetheless, this schedule is ineffective in reducing craving and alcohol intake.

Original languageEnglish
Pages (from-to)147-153
Number of pages7
JournalDrug and Alcohol Dependence
Volume158
DOIs
Publication statusPublished - Jan 1 2016

Keywords

  • Alcohol craving
  • Alcohol detoxification
  • Brain oscillations
  • High-frequency transcranial magnetic stimulation
  • Inhibitory control
  • Psychological symptoms
  • Selective attention
  • Thalamo-cortical dysrhythmias

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Toxicology
  • Pharmacology
  • Pharmacology (medical)

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  • Cite this

    Del Felice, A., Bellamoli, E., Formaggio, E., Manganotti, P., Masiero, S., Cuoghi, G., Rimondo, C., Genetti, B., Sperotto, M., Corso, F., Brunetto, G., Bricolo, F., Gomma, M., & Serpelloni, G. (2016). Neurophysiological, psychological and behavioural correlates of rTMS treatment in alcohol dependence. Drug and Alcohol Dependence, 158, 147-153. https://doi.org/10.1016/j.drugalcdep.2015.11.018