Assessing neurophysiological changes associated with combined transcranial direct current stimulation and cognitive-emotional training for treatment-resistant depression

被引:12
作者
Nikolin, Stevan [1 ,2 ]
Martin, Donel [1 ,2 ]
Loo, Colleen K. [1 ,2 ,3 ]
Iacoviello, Brian M. [4 ,5 ]
Boonstra, Tjeerd W. [1 ,6 ]
机构
[1] Univ New South Wales, Sch Psychiat, Sydney, NSW, Australia
[2] Black Dog Inst, Sydney, NSW, Australia
[3] St George Hosp, Sydney, NSW, Australia
[4] Click Therapeut Inc, New York, NY USA
[5] Icahn Sch Med Mt Sinai, Dept Psychiat, New York, NY 10029 USA
[6] Maastricht Univ, Fac Psychol & Neurosci, Maastricht, Netherlands
关键词
alpha asymmetry; EEG; event-related potential; tDCS; working memory; EEG ALPHA ASYMMETRY; ANTERIOR CINGULATE ACTIVITY; WORKING-MEMORY; TREATMENT RESPONSE; EFFECTIVE CONNECTIVITY; INDIVIDUAL-DIFFERENCES; MAGNETIC STIMULATION; CURRENT THERAPY; THETA-ACTIVITY; TRAIT MARKER;
D O I
10.1111/ejn.14656
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Transcranial direct current stimulation (tDCS), a form of non-invasive brain stimulation, is a promising treatment for depression. Recent research suggests that tDCS efficacy can be augmented using concurrent cognitive-emotional training (CET). However, the neurophysiological changes associated with this combined intervention remain to be elucidated. We therefore examined the effects of tDCS combined with CET using electroencephalography (EEG). A total of 20 participants with treatment-resistant depression took part in this open-label study and received 18 sessions over 6 weeks of tDCS and concurrent CET. Resting-state and task-related EEG during a 3-back working memory task were acquired at baseline and immediately following the treatment course. Results showed an improvement in mood and working memory accuracy, but not response time, following the intervention. We did not find significant effects of the intervention on resting-state power spectral density (frontal theta and alpha asymmetry), time-frequency power (alpha event-related desynchronisation and theta event-related synchronisation) or event-related potentials (P2 and P3 components). We therefore identified little evidence of neurophysiological changes associated with treatment using tDCS and concurrent CET, despite significant improvements in mood and near-transfer effects of cognitive training to working memory accuracy. Further research incorporating a sham-controlled group may be necessary to identify the neurophysiological effects of the intervention.
引用
收藏
页码:2119 / 2133
页数:15
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