Abstract | INTRODUCTION: METHODS: The ASD performance in SZ patients was compared with matched healthy controls (HC) (N = 24). Subsequently, the effect of single-session tDCS on ASD in SZ patients (N = 24) with AVH was examined in a randomized, double-blind, sham-controlled, cross-over design. The true and sham tDCS were administered ( anode at the left dorsolateral prefrontal cortex and cathode at the left temporoparietal junction) on two different days. ASD task was performed before and after each session of tDCS. RESULTS:
Auditory hallucination rating scores correlated significantly with false alarm rate, discriminability index, and response bias. SZ patients had a significantly lesser discriminability index in ASD than HC. Single-session tDCS (true versus sham) did not have any significant effect on ASD in SZ patients. CONCLUSION: The study findings support the pathogenetic role of ASD in AVH in SZ. Lack of effect on ASD following single-session tDCS suggests the need for multi-session studies in the future.
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Authors | Sowmya Selvaraj, Harleen Chhabra, Damodharan Dinakaran, Vanteemar S Sreeraj, Shivakumar Venkataram, Janardhanan C Narayanaswamy, Muralidharan Kesavan, Shivarama Varambally, Ganesan Venkatasubramanian |
Journal | Psychiatry research
(Psychiatry Res)
Vol. 297
Pg. 113704
(03 2021)
ISSN: 1872-7123 [Electronic] Ireland |
PMID | 33453498
(Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2021. Published by Elsevier B.V. |
Topics |
- Adult
- Cross-Over Studies
- Double-Blind Method
- Female
- Hallucinations
(physiopathology, therapy)
- Humans
- Male
- Prefrontal Cortex
(physiopathology)
- Schizophrenia
(physiopathology, therapy)
- Temporal Lobe
(physiopathology)
- Transcranial Direct Current Stimulation
- Treatment Outcome
- Young Adult
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