Antidepressant effects of tDCS are associated with prefrontal gray matter volumes at baseline: Evidence from the ELECT-TDCS trial.

Affiliation

Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany; Service of Interdisciplinary Neuromodulation, Department of Psychiatry, Laboratory of Neurosciences (LIM-27) and National Institute of Biomarkers in Neuropsychiatry (INBioN), Institute of Psychiatry, University of Sao Paulo, Sao Paulo, Brazil; Hospital Universitario, Departamento de Clínica Médica, Faculdade de Medicina da USP, São Paulo, Brazil. Electronic address: [Email]

Abstract

Transcranial direct current stimulation (tDCS) is a promising intervention for major depression. However, its clinical effects are heterogeneous. We investigated, in a subsample of the randomized, clinical trial Escitalopram versus Electrical Direct Current Therapy for Depression Study (ELECT-TDCS), whether the volumes of left and right prefrontal cortex (PFC) and anterior cingulate cortex (ACC) were associated with prefrontal tDCS response.

Keywords

Antidepressant response,Magnetic resonance imaging,Major depressive disorder,Noninvasive brain stimulation,Structural neuroanatomy,Transcranial direct current stimulation,

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