Skip to content

Sahib S. Khalsa

5 papers in the library · 322 citations · publishing 2008-2026

Papers

Interoceptive awareness in experienced meditators

Psychophysiology May 22, 2008 Sahib S. Khalsa, David Rudrauf, António R. Damásio et al. 276 citations

Meditation traditions claim that paying attention to internal body sensations increases awareness of them, but scientific evidence is lacking. Experienced meditators (Tibetan Buddhist and Kundalini) were compared to nonmeditators matched for age and body mass index on a heartbeat detection task, a standard measure of interoceptive awareness. Contrary to predictions, meditators showed no superior performance across several sessions and respiratory conditions. However, meditators consistently rated their interoceptive performance as better and the task as easier. These results suggest that practicing attention to internal body sensations, a core feature of meditation, does not enhance the ability to sense the heartbeat at rest.

Taking the body off the mind: Decreased functional connectivity between somatomotor and default‐mode networks following Floatation‐REST

Human Brain Mapping April 9, 2021 Obada Al Zoubi, Masaya Misaki, Jerzy Bodurka et al. 39 citations

A single 90-minute session of Floatation-REST, which minimizes sensory input, reduces resting-state functional connectivity within and between posterior hubs of the default-mode network and somatomotor cortices extending into the posterior insula. A control condition of resting in a zero-gravity chair produced a similar pattern of reduced connectivity. The findings suggest that reducing nervous system stimulation is reflected by decreased connectivity in brain networks that construct and map the sense of self.

A meta-analysis of the effects of mindfulness meditation training on self-reported interoception

Scientific Reports November 6, 2025 Isaac N. Treves, Ya‐Yun Chen, Caitlyn L. Wilson et al. 5 citations

A meta-analysis of 29 randomized controlled trials with 2,191 participants found that mindfulness-based interventions produce a small-to-medium improvement in self-reported interoceptive awareness (g = 0.31). Mindfulness-based programs showed the largest effects (g = 0.41). Improvements in interoception were similar in size to improvements in self-reported mindfulness and were linked to reductions in psychological distress. No evidence of publication bias was detected, and no other factors such as practice dosage or clinical sample significantly moderated the results. These findings suggest mindfulness interventions can positively alter how people subjectively experience bodily sensations, which may contribute to better mental health.

ENIGMA-Meditation: Worldwide consortium for neuroscientific investigations of meditation practices

April 8, 2024 Saampras Ganesan, Aki Tsuchiyagaito, Greg J. Siegle et al. 2 citations preprint

Meditation practices, which have been adapted into manualized interventions for conditions like depression, pain, addiction, and anxiety, show therapeutic promise, but their neuroscientific basis remains unclear. Current neuroimaging studies rely on small, heterogeneous datasets that vary in practice types, participant experience, clinical targets, and imaging methods, limiting generalizability and replicability. To address this, the ENIGMA-Meditation consortium was formed as a global collaboration to conduct systematic meta- and mega-analyses of distributed neuroimaging data using standardized methods. This framework aims to improve statistical power and rigorously characterize the neural mechanisms underlying meditation's effects on psychological and cognitive attributes, advancing the field of contemplative neuroscience.

Aquahenosis: A non-pharmacological altered state of consciousness induced by Floatation-REST in individuals with anxiety and depression

June 10, 2026 Theo Tobel, Aidan Cone, Emily Choquette et al. preprint

Floatation-REST, a therapy involving floating in a tank with reduced sensory input, induces altered states of consciousness in people with anxiety and depression. In a randomized trial, 75 adults who floated reported increased awareness of their heartbeat and breathing, along with feelings of oceanic boundlessness, disembodiment, and unity—a pattern called 'aquahenosis.' These effects were strongest in those who chose longer, flexible sessions. The experiential profile overlapped with those reported for psychedelics like psilocybin and ketamine, particularly in boundary dissolution. The findings suggest Floatation-REST is a non-pharmacological method for inducing specific altered states, with oceanic boundlessness mediating improvements in positive affect.