Neuropsychopharmacology
July 20, 2026
Noam Goldway, Itamar Jalon, Yara Agbaria et al.
Abstract Ketamine produces both analgesic and dissociative effects, but whether analgesia depends on dissociation remains debated. This question is part of a broader discussion on whether the subjective experiences elicited by psychoactive drugs are necessary for their therapeutic benefits. Here, we tested whether ketamine-induced analgesia and dissociation show separable behavioral and neural...
Biological Psychiatry Global Open Science
March 1, 2026
Noam Goldway, Taly Markovits, Naomi Fine et al.
1 citation
Dissociation, an altered state of consciousness in which individuals feel detached from their body, environment, and sense of self, is a common feature of posttraumatic stress disorder (PTSD). Despite its significance, the neurocognitive processes underlying dissociation remain poorly understood, potentially limiting diagnostic precision and treatment efficacy in PTSD. To address this gap, we...
bioRxiv
July 31, 2025
Noam Goldway, Talma Hendler, Itamar Jalon et al.
preprint
Ketamine, a psychoactive medication, exerts both analgesic and dissociative effects. However, whether its analgesic effect stems from its dissociative properties is a topic of debate. Our study aimed to determine whether ketamine’s analgesic and dissociative effects are supported by distinct neural mechanisms. In a within-subject, placebo-controlled study, 37 healthy volunteers were...
CNS Drugs
May 1, 2024
Libat Weizman, Haggai Sharon, Lior Dayan et al.
Disordered autonomic nervous system regulation and supraspinal pain inhibition have been repeatedly described in chronic pain. We aimed to explore the effects of δ-9-tetrahydrocannabinol (THC), an emerging treatment option, on autonomic nervous system and central pain modulation measures in patients with chronic pain. Twelve male patients with chronic radicular neuropathic pain participated in...
The British Journal of Psychiatry
September 24, 2018
Yoav Domany, Maya Bleich‐Cohen, Ricardo Tarrasch et al.
117 citations
BACKGROUND: Ketamine has been demonstrated to improve depressive symptoms.AimsEvaluation of efficacy, safety and feasibility of repeated oral ketamine for out-patients with treatment-resistant depression (TRD). METHOD: In a randomised, double-blind, placebo-controlled, proof-of-concept trial, 41 participants received either 1 mg/kg oral ketamine or placebo thrice weekly for 21 days...
Neurology
September 5, 2018
L. Weizman, Lior Dayan, Silviu Brill et al.
Objective To characterize the functional brain changes involved in δ-9-tetrahydrocannabinol (THC) modulation of chronic neuropathic pain. Methods Fifteen patients with chronic radicular neuropathic pain participated in a randomized, double-blind, placebo-controlled trial employing a counterbalanced, within-subjects design. Pain assessments and functional resting state brain scans were performed...
Noam Goldway, Taly Markovits, Naomi Fine et al.
preprint
Dissociation, an altered state of consciousness in which individuals feel detached from their body, environment, and sense of self, is a common feature of Post-Traumatic Stress Disorder (PTSD). Despite its significance, the neurocognitive processes underlying dissociation remain poorly understood, potentially limiting the effectiveness of PTSD diagnostics and treatment. To address this gap, we...