A pilot study of GABA B correlates with resting-state functional connectivity in five depressed female adolescents

Irena Balzekas, Charles P. Lewis, Julia Shekunov, John D. Port, Gregory A. Worrell, Hang Joon Jo, Paul E. Croarkin

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Connectivity features based on resting-state (RS) functional magnetic resonance imaging (fMRI) demonstrate great promise as biomarkers to guide diagnosis and treatment in major depressive disorder (MDD). However, there is a pressing need for valid, reliable biomarkers closer to the bedside for clinical research and practice. This study directly compared RS-fMRI connectivity features with transcranial magnetic stimulation (TMS) neurophysiological measures, long interval cortical inhibition (LICI) and cortical silent period (CSP), in female adolescents with MDD. LICI-200 showed the most significant associations with RS functional connectivity features, demonstrating its potential to evaluate the neurochemical underpinnings of network features in MDD.

Original languageEnglish (US)
Pages (from-to)60-63
Number of pages4
JournalPsychiatry Research - Neuroimaging
StatePublished - Sep 30 2018


  • Connectivity
  • Depression
  • Resting state
  • TMS, fMRI

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Psychiatry and Mental health


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