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Crystal Spotts

7 papers in the library · 69 citations · publishing 2023-2025

Papers

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Mindfulness, music, visual occlusion in ketamine therapy for depression: do they change outcomes? A qualitative and quantitative analysis of a randomized controlled trial

Frontiers in Psychiatry September 2, 2025 Mina Kheirkhah, Nastasia McDonald, Julia Aepfelbacher et al. 1 citation

Introduction: This is the first randomized controlled trial to use both qualitative and quantitative methods to evaluate the effects of a combined sensory intervention that included mindfulness, music, and a light-occluding eye mask during antidepressant-dose ketamine treatment for depression. Methods: Forty-three participants with unipolar depressive disorder enrolled in the study; 22...

Effects of ketamine on individual symptoms and symptom networks of depression in a randomised controlled trial of ketamine for treatment-resistant depression.

The British journal of psychiatry : the journal of mental science May 13, 2025 Shabnam Hossein, Manivel Rengasamy, Aiyedun Uzamere et al. 3 citations

Understanding the effects of ketamine on depressive symptoms could help identify which patients might benefit and clarify its mechanism of action in both the early (≤1 day post-infusion) and late (e.g. 2-30 days post-infusion) post-infusion periods. Symptom network analyses could provide complementary information regarding relationships between symptoms. To identify the effects of ketamine on...

The Impact of Intravenous Ketamine on Attentional Bias: Probing Mechanisms of Rapid-Acting Antidepressant Effects in Two Clinical Studies.

Biological Psychiatry April 15, 2025 Mary L Woody, Rebecca Rohac, Iya Cooper et al. 1 citation

Ketamine is known for its rapid antidepressant effect, but its impact on affective information processing (including attentional bias [AB], a putative cognitive mechanism of depression) remains largely unexplored. We leveraged a novel measurement of AB and sought to 1) establish adequate test-retest reliability and validity among participants with depression prior to ketamine treatment and 2)...

Lack of relationships between ketamine treatment and peripheral neurotrophic and inflammatory factors in a randomized controlled ketamine trial of major depressive disorder.

Brain, behavior, and immunity April 4, 2025 Manivel Rengasamy, Benjamin Panny, Zakary Hutchinson et al. 3 citations

Ketamine is a rapid-acting treatment for treatment-resistant depression (TRD), though mechanisms related to ketamine's effects remain unclear. Blood-based neurotrophic and inflammatory factors (NIFs; e.g., brain-derived neurotrophic factor, interleukin-6) have emerged as markers potentially linked to ketamine and ketamine treatment response. In this secondary analysis of a randomized controlled...

Functional connectivity subtypes during a positive mood induction: Predicting clinical response in a randomized controlled trial of ketamine for treatment-resistant depression.

Journal of Psychopathology and Clinical Science April 1, 2025 Shabnam Hossein, Mary L Woody, Benjamin Panny et al. 3 citations

Ketamine has shown promise in rapidly improving symptoms of depression and most notably treatment-resistant depression (TRD). However, given the heterogeneity of TRD, biobehavioral markers of treatment response are necessary for the personalized prescription of intravenous ketamine. Heterogeneity in depression can be manifested in discrete patterns of functional connectivity (FC) in default...

Improved implicit self-esteem is associated with extended antidepressant effects following a novel synergistic intervention.

Molecular Psychiatry November 1, 2024 H Nur Eken, Crystal Spotts, Benjamin Panny et al. 1 citation

In a previously published randomized controlled trial, automated self-association training (ASAT), a novel digital intervention, was found to extend the rapid antidepressant effect of a single infusion of ketamine for at least 30 days. In this secondary analysis, we aimed to understand the potential role of implicit self-esteem in the combined antidepressant effect of ketamine and ASAT...

Rapid neuroplasticity changes and response to intravenous ketamine: a randomized controlled trial in treatment-resistant depression

Translational Psychiatry May 9, 2023 Jared M. Kopelman, T. Keller, Benjamin Panny et al. 57 citations

Intravenous ketamine is posited to rapidly reverse depression by rapidly enhancing neuroplasticity. In human patients, we quantified gray matter microstructural changes on a rapid (24-h) timescale within key regions where neuroplasticity enhancements post-ketamine have been implicated in animal models. In this study, 98 unipolar depressed adults who failed at least one antidepressant medication...