Neural correlates of clinical improvement after deep transcranial magnetic stimulation (DTMS) for treatment-resistant depression: a case report using functional magnetic resonance imaging.
Neurocase
; 21(1): 16-22, 2015 Feb.
Article
en En
| MEDLINE
| ID: mdl-24313336
ABSTRACT
We report the effects of a 4-week trial of deep transcranial magnetic stimulation (DTMS) on depressive and anxious symptoms and brain activity in a patient (Mrs A) with treatment-resistant depression (TRD). The protocol involved a pre- and a post-functional magnetic resonance imaging (fMRI) scan during which Mrs A had to perform a working memory task (i.e., n-back). Her baseline score on the 21-item Hamilton Depression Rating Scale (HAM-D21) was 24, indicating severe depressive symptoms. Immediately after 4 weeks of daily DTMS treatment applied over the left dorsolateral prefrontal cortex (DLPFC), her HAM-D21 score decreased to 13 (a 46% reduction), and 1 month later, it was 12 (a 50% reduction). Moreover, Mrs A's accuracy scores on the n-back task (i.e., 2-back condition) improved from 79% (baseline) to 96% (after DTMS treatment). At the neural level, Mrs A showed significantly increased brain activity in the working memory network (e.g., DLPFC, parietal cortex) during the execution of the 2-back condition after DTMS treatment compared to baseline.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Encéfalo
/
Estimulación Magnética Transcraneal
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Trastorno Depresivo Resistente al Tratamiento
Tipo de estudio:
Guideline
Límite:
Female
/
Humans
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Middle aged
Idioma:
En
Revista:
Neurocase
Asunto de la revista:
CIENCIAS DO COMPORTAMENTO
/
NEUROLOGIA
/
PSICOLOGIA
/
PSIQUIATRIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Canadá