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Ganesan Venkatasubramanian

7 papers in the library · 6 citations · publishing 2011-2026

Papers

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Why is it hard to assess thought disorder? Clarifying the third domain of psychosis.

Schizophrenia Research June 1, 2026 L Palaniyappan, Vanteemar S Sreeraj, Ganesan Venkatasubramanian et al. 5 citations

Formal Thought Disorder (FTD) presents psychiatry's central paradox: it is one of the robust predictors of poor outcomes and polygenic risk in psychosis yet remains poorly defined and rarely measured clinically. We systematically reviewed 50 years of FTD assessment (16 rating scales, 32 factor analyses) to understand this paradox. Research to date has implicitly treated FTD as a natural kind, a...

Ketamine infusion combined with accelerated sequential theta burst stimulation in multi-therapy-resistant bipolar depression: A case report.

Asian Journal of Psychiatry June 1, 2026 Hariprasad Ganapathy Vijayakumar, Varsha Shamanna, Harsh Pathak et al. 1 citation

Treatment resistance in bipolar depression is one of the most challenging clinical conditions to treat in psychiatry. We present a case of an elderly gentleman with chronic Multi-Therapy Resistant Bipolar Depression (MTRBD), where ketamine, a preferential NMDAR blocker on cortical GABAergic interneurons, is used adjunctively with sequential theta burst stimulation (sTBS) to achieve remission....

Neural mass modelling of brain stimulation to Alleviate Schizophrenia biomarkers in brain rhythms.

Computers in biology and medicine June 1, 2025 Swapna Sasi, Basabdatta Sen Bhattacharya, Vanteemar S Sreeraj et al.

We present a neural mass model (NMM) of the brain thalamo-cortico-thalamic (TCT) network to understand the effectiveness of non-invasive treatment with transcranial Direct Current Stimulation (tDCS) in reversing the anomalous electroencephalogram (EEG) oscillations in Schizophrenia. Our TCT NMM consists of twelve neural populations representing the thalamus and cortex modules of the visual...

DOI: 10.1016/j.compbiomed.2025.110190 (opens in new tab) Full text (opens in new tab) EEG Brain Rhythms Neural mass models Thalamocortical Neurological disorders +3

Directional brain networks underlying OM chanting.

Asian Journal of Psychiatry October 2018 Naren P. Rao, Gopikrishna Deshpande, Kalyani Bangalore Gangadhar et al.

OM chanting is an ancient technique of Indian meditation. OM chanting is associated with an experience of relaxation, changes in autonomic balance and deactivation of limbic brain regions. While functional localization is important, how brain regions interact with each other has been shown to underlie various brain functions. Therefore, in this study, we tested the hypothesis that there is...

DOI: 10.1016/j.ajp.2018.08.001 (opens in new tab) Full text (opens in new tab) Meditation Directional connectivity Functional MRI Granger causality +2

Metacognition and Mindfulness Integrated Therapy Reduces Severity of Hallucination in a Patient Not Taking Antipsychotic Medication.

Journal of Cognitive Psychotherapy August 2018 Devvarta Kumar, Ganesan Venkatasubramanian

Psychological interventions have proven efficacy in treating psychotic symptoms such as delusions and hallucinations. However, the efficacy of these interventions has primarily been evaluated in the context of their use as an adjunct to antipsychotics or on patients who do not respond to adequate trials of antipsychotics. There is paucity of research about the effectiveness of psychological...

Understanding schizophrenia as a disorder of consciousness: biological correlates and translational implications from quantum theory perspectives.

Clinical Psychopharmacology and Neuroscience April 30, 2015 Ganesan Venkatasubramanian

From neurophenomenological perspectives, schizophrenia has been conceptualized as "a disorder with heterogeneous manifestations that can be integrally understood to involve fundamental perturbations in consciousness". While these theoretical constructs based on consciousness facilitate understanding the 'gestalt' of schizophrenia, systematic research to unravel translational implications of...

DOI: 10.9758/cpn.2015.13.1.36 (opens in new tab) Full text (opens in new tab) Consciousness Microtubules Quantum theory Schizophrenia

Neurohemodynamic correlates of ′OM′ chanting: A pilot functional magnetic resonance imaging study

International Journal of Yoga April 29, 2011 Bangalore G Kalyani, Ganesan Venkatasubramanian, Rashmi Arasappa et al.

Background: A sensation of vibration is experienced during audible ′OM′ chanting. This has the potential for vagus nerve stimulation through its auricular branches and the effects on the brain thereof. The neurohemodynamic correlates of ′OM′ chanting are yet to be explored. Materials and Methods: Using functional Magnetic Resonance Imaging (fMRI), the neurohemodynamic correlates of audible ′OM′...