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High frequency repetitive transcranial magnetic stimulation (rTMS) targeted at left dorsolateral prefrontal cortex (lDLPFC) is an increasingly popular therapy of patients with major depressive disorder, who are inadequately responsive to medication treatment. There is evidence of resting state functional connectivity (fcMRI) between lDLPFC and left anterior cingulate cortex (lACC) playing a role in rTMS efficacy. We performed a longitudinal study by scanning patients before and after 6-week long 10-Hz rTMS therapy. Patients with lower resting state low frequency blood oxygen level dependent fluctuation correlation and anticorrelation between lDLPFC and lACC responded better to rTMS therapy.
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Bhattacharyya et al. (2024) studied this question.
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