{"title":"Awareness of being: a computational neurophenomenological model of mindfulness, mind-wandering, and meta-attentional control.","authors":"Hayato Idei, Keisuke Suzuki, Yuichi Yamashita","doi":"10.1093/nc/niag046","DOIUrl":"https://doi.org/10.1093/nc/niag046","url":null,"abstract":"<p><p>Mindfulness has established psychological benefits, such as stress reduction and emotional regulation; however, the underlying computational mechanisms, particularly in relation to mind-wandering, remain unclear. This study aimed to present a hierarchical recurrent neural network-based agent model grounded in the free energy principle to explore these processes within the framework of allostasis. The model integrates interoceptive, proprioceptive, and exteroceptive predictive processing, which minimizes the variational free energy throughout past and future contexts. Simulations of the resting state showed that inferred (mentally simulated) homeostatic context modulated attentional shifts between a 'being' mode (focused on present interoceptive perception) and a 'doing' mode (involving mentally simulated proprioceptive and exteroceptive sensorimotor behaviors). Further, we identified a meta-attentional parameter that controls these shifts by influencing cognitive attitudes toward internally generated beliefs across network modules spanning from the past to the future. By manipulating this parameter, we replicated mindfulness states ('deep-being' mode) in which attention remained focused on the present interoceptive state, despite minimal sensory prediction errors. This study offers insights into the computational dynamics of mindfulness and mind-wandering, laying the groundwork for the future exploration of consciousness and pure awareness, which is a state of consciousness devoid of content.</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag046"},"PeriodicalIF":3.8,"publicationDate":"2026-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13545998/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148898338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vincent Plikat, Pablo R Grassi, Michael M Bannert, Andreas Bartels
{"title":"Memory color influences conscious object perception.","authors":"Vincent Plikat, Pablo R Grassi, Michael M Bannert, Andreas Bartels","doi":"10.1093/nc/niag055","DOIUrl":"10.1093/nc/niag055","url":null,"abstract":"<p><p>Can knowledge influence perception? A central case suggesting it can, is evidence showing that knowledge about a color-diagnostic object's typical color can influence its appearance. For example, a gray banana is allegedly perceived with a tint of yellow. However, methodological and conceptual considerations leave it unclear whether the purported \"memory color\" effect actually reflects changes in perception or changes in judgment and responses instead. Here, we combine memory color with binocular rivalry to test if top-down influences affect the color an object is perceived in. We showed 24 participants familiar objects in their typical and opponent color and asked for concurrent reports of the perceived color. Consistent with Bayesian models of rivalry, we observed that conscious perception of identical spectral color pairs was biased toward the typical color of the presented object. Our results suggest that prior knowledge aids interpretation of ambiguous stimuli and biases conscious perception toward the most plausible interpretation.</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag055"},"PeriodicalIF":3.8,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13537532/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148882698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yarin Szachter, Almog Simchon, Danny Kalev, Nirit Soffer-Dudek
{"title":"Who's in charge? Linguistic exploration of social media posts reveals reduced sense of agency in dissociation.","authors":"Yarin Szachter, Almog Simchon, Danny Kalev, Nirit Soffer-Dudek","doi":"10.1093/nc/niag056","DOIUrl":"10.1093/nc/niag056","url":null,"abstract":"<p><p>Sense of Agency (SoA), the subjective experience of initiating and controlling one's actions, is a critical component of self-perception and consciousness, and is often degraded in different psychopathologies. Individuals with dissociation seem to have diminished SoA, but it is yet unknown whether this affects communication with their surroundings. This study employs Natural Language Processing (NLP) to examine linguistic markers of SoA in dissociation, focusing on passive voice usage as an indicator of diminished agency. A dataset of 26 017 posts was extracted from 'Reddit' forums concerning dissociation and maladaptive daydreaming (a suggested dissociative disorder), and for comparison, depression, anxiety, and social anxiety. Passive voice usage was measured using spaCy's NLP framework, and verb tense distributions were analysed to explore additional potential linguistic markers of agency. Negative binomial regression models were used to compare passive voice usage across groups, controlling for word count. The dissociation group, but not the maladaptive daydreaming group, exhibited significantly greater use of passive voice compared to the general psychopathology control group (IRR = 1.10, <i>P</i> < .001). Additionally, when examining the three psychopathology control subgroups separately (depression, anxiety, and social anxiety), no significant difference was found between the depression and dissociation groups in passive voice usage. These findings suggest that diminished SoA is a core feature of dissociation, reflected in linguistic patterns. The results highlight the usefulness of language-based big data investigations in understanding the self-experience in psychopathology research.</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag056"},"PeriodicalIF":3.8,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13537530/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148882751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pierre De Oliveira, Hélène Meunier, Audrey Breton, Michael Dambrun
{"title":"From the attenuation of self-boundaries to inner peace: how nonordinary states of consciousness modulates self-experience and subjective well-being.","authors":"Pierre De Oliveira, Hélène Meunier, Audrey Breton, Michael Dambrun","doi":"10.1093/nc/niag022","DOIUrl":"10.1093/nc/niag022","url":null,"abstract":"<p><p>Nonordinary states of consciousness induced by mind-body practices are increasingly studied for their potential to support self-transcendence and psychological well-being. According to the Self-centered/Selflessness Happiness Model (SSHM), sustained well-being may arise from a shift away from self-centered mental processes toward a more decentered, and interconnected sense of self. This study explored how a volitional altered state of consciousness (auto-induced cognitive trance-AICT) impacts different dimensions of self-experience and their relationship to well-being. Using a mixed-methods design, trained practitioners (<i>N</i> = 17) recalled two contrasting experiences: an ordinary waking state (a recent mealtime) and a self-induced trance. In each condition, they described their subjective experience, with a focus on various dimensions of self-consciousness such as self-concept, agency, bodily boundaries, self-location, and temporal awareness. Subjective well-being was also assessed using the Authentic Happiness Scale. Results showed that, compared to ordinary consciousness, the AICT state induced profound alterations in both narrative and minimal self-experience, including reduced self-referential thought, a more diffuse and decentered self-location, diminished sense of agency, attenuated bodily boundaries, and heightened feelings of oneness. These experiential changes were accompanied by increased subjective well-being, particularly in the form of inner peace. Correlational analyses yielded preliminary findings consistent with the hypothesis that these emotional benefits may be primarily associated with transformations in minimal self-related processes, though replication with larger samples is needed to confirm this pattern. These implications are discussed.</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag022"},"PeriodicalIF":3.8,"publicationDate":"2026-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13520798/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148841400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Theo Tobel, Aidan Cone, Emily Choquette, McKenna Garland, Micah A Johnson, Keller Mink, Caitlin Lynch, Joel Frohlich, Justin S Feinstein, Nicco Reggente, Sahib Khalsa
{"title":"Aquahenosis: a non-pharmacological altered state of consciousness induced by floatation-REST in individuals with anxiety and depression.","authors":"Theo Tobel, Aidan Cone, Emily Choquette, McKenna Garland, Micah A Johnson, Keller Mink, Caitlin Lynch, Joel Frohlich, Justin S Feinstein, Nicco Reggente, Sahib Khalsa","doi":"10.1093/nc/niag044","DOIUrl":"10.1093/nc/niag044","url":null,"abstract":"<p><p>Floatation-REST (Reduced Environmental Stimulation Therapy) systematically alters the balance of sensory signals reaching the brain by combining neutral buoyancy, thermal and proprioceptive neutrality, attenuation of exteroceptive stimulation, and enhancement of cardiorespiratory signaling. Here we examined whether this non-pharmacological sensory perturbation induces altered states of consciousness and whether specific experiential dimensions are statistically related to changes in affect. In a secondary analysis of a randomized controlled feasibility trial, 75 treatment-seeking adults with anxiety and depression were assigned to six sessions of Floatation-REST with prescribed scheduling, Floatation-REST with preferred scheduling and duration, or a zero-gravity chair comparison condition. Altered states of consciousness were assessed using the 5-Dimensional Altered States of Consciousness Rating Scale, alongside measures of interoceptive awareness and affect. Compared to the chair condition, Floatation-REST was associated with increased interoceptive awareness of cardiorespiratory sensations and an altered state of consciousness characterized by Oceanic Boundlessness, Disembodiment, and Experience of Unity-a pattern we refer to as \"<i>aquahenosis</i>\". Effects were strongest among participants who selected longer and more flexible float sessions. Experiential profiles selectively overlapped with those reported for psilocybin and ketamine along boundary-dissolution dimensions. These findings identify Floatation-REST as a tractable, non-pharmacological method for inducing specific altered states of consciousness and highlight Oceanic Boundlessness as an important mediator of the float-induced changes in positive affect.</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag044"},"PeriodicalIF":3.8,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13513766/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148834591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hafid Sid-Ahmed, Julie Alayrangues, Lilia Langar, Nelly Richard, Véronique Albaladejo, Stéphane Pezzani, Virginie Brun, Daniel Anglade, Vincent Auboiroux
{"title":"Magnetoencephalography monitoring of hypnosis-induced modulation of event-related brain responses by hypnosis.","authors":"Hafid Sid-Ahmed, Julie Alayrangues, Lilia Langar, Nelly Richard, Véronique Albaladejo, Stéphane Pezzani, Virginie Brun, Daniel Anglade, Vincent Auboiroux","doi":"10.1093/nc/niag051","DOIUrl":"10.1093/nc/niag051","url":null,"abstract":"<p><p>Hypnosis is increasingly used in a medical context. However, the hypnotic process is dynamic, and we currently lack specific and reliable biomarkers to diagnose and rigorously monitor the patient's response to hypnotic suggestions. Here, we aimed to identify physiological biomarkers by investigating cerebral event-related responses in an oddball paradigm using a magnetoencephalography-based method. Twenty volunteers with different suggestibility levels were exposed to standard and deviant sounds as part of an oddball paradigm. Subjects were monitored in three distinct conditions: critical consciousness, while distracted by listening to a story, and during hypnotic trance. In each condition, event-related responses were analyzed in both a source space (auditory cortex and dorsal anterior cingulate cortex) and a sensor space in a minimalistic scenario (two sensors). The statistical analysis revealed significant reductions in amplitudes in the auditory cortex and in sensor measurements during hypnotic trance and distraction relative to critical consciousness. These reductions in amplitudes were observed for both standard and deviant stimuli, regardless of the level of hypnotic suggestibility. In particular, this study aimed to determine whether auditory responses are reduced even without explicit suggestions of induced deafness. A more subtle, but nevertheless statistically significant, difference was also found between the distraction and the hypnotic conditions in the source space. The modulation of the cortical response to auditory stimuli during hypnosis could be used as a physiological marker of the hypnotic process. Hypnotic trance and distraction do not appear to differ significantly, as both seem to induce a similar alteration of critical consciousness.</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag051"},"PeriodicalIF":3.8,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13513767/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148834565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Towards an active inference account of deep meditative deconstruction.","authors":"Shawn Prest, Kevin Berryman","doi":"10.1093/nc/niag053","DOIUrl":"10.1093/nc/niag053","url":null,"abstract":"<p><p>This paper explores the intersection of the deep meditative deconstruction resulting from Buddhist meditative practice, specifically through the defabrication process, with the active inference framework (AIF). We propose that defabrication, central to Buddhist meditation, can be understood as a computational process whereby the repeated release of mental tension-associated with clinging and aversion-drives inference progressively lower in an agent's hierarchical generative model. By casting the release of mental tension as a reduction in hierarchical level-specific precision over beliefs about hidden causes, we demonstrate how the phenomenology of defabrication naturally arises from the resultant system dynamics. This approach enables a computational interpretation of Buddhist meditative states, such as the jhānas, and core concepts like equanimity and stillness. More broadly, it advances a computational phenomenology of meditative deconstruction. Finally, we illustrate the deconstruction process under AIF by extending it to the cessation of phenomenal experience, suggesting this offers insight into core-knowledge structuring and the generation of experience.</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag053"},"PeriodicalIF":3.8,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13502408/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction: Affirmed gender shapes virtual embodiment: a phenomenological account of ownership and agency across gender identities.","authors":"","doi":"10.1093/nc/niag057","DOIUrl":"https://doi.org/10.1093/nc/niag057","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1093/nc/niag047.].</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag057"},"PeriodicalIF":3.8,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13501173/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lucca F Jaeckel, Deborah Logvinski, Mika Kanana, Felix Müller, Nicolai Rohner, Anna M Becker, Matthias E Liechti, Philipp Sterzer
{"title":"Low-dose lysergic acid diethylamide alters subjective visual perception but not visual contrast surround suppression.","authors":"Lucca F Jaeckel, Deborah Logvinski, Mika Kanana, Felix Müller, Nicolai Rohner, Anna M Becker, Matthias E Liechti, Philipp Sterzer","doi":"10.1093/nc/niag050","DOIUrl":"https://doi.org/10.1093/nc/niag050","url":null,"abstract":"<p><p>Theoretical models and empirical evidence suggest that psychedelics alter contextual influences on perception. To test this, we examined contrast surround suppression, a visual illusion in which a grating appears lower in contrast when embedded in a high-contrast surround. While psilocybin has been reported to enhance this and related illusions at moderate-to-high doses, it is unknown whether low-dose Lysergic Acid Diethylamide (LSD) produces similar effects. In a randomized, double-blind, within-subjects crossover study, N = 30 healthy participants received placebo, 10, and 20 μg of LSD (base-equivalent). In each session, participants performed a contrast discrimination task and rated subjective drug effects. LSD did not measurably influence contrast surround suppression. However, participants reported subjective visual changes, including blurrier, more saturated, and more dynamical visual perception. These subjective alterations did not correlate with individual differences in contrast-surround suppression. Our findings indicate a dissociation between subjective experience and early visual contextual processing, suggesting that subjective visual effects of low-dose LSD may arise through mechanisms distinct from those mediating contrast surround suppression. Future research should test whether higher doses of LSD affect contrast surround suppression.</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag050"},"PeriodicalIF":3.8,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13492661/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148801270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nicolás Sánchez-Fuenzalida, Simon van Gaal, Zazie van den Hurk, Timo Stein, Johannes J Fahrenfort
{"title":"Evidence for unconscious priming using a Bayesian single-subject approach.","authors":"Nicolás Sánchez-Fuenzalida, Simon van Gaal, Zazie van den Hurk, Timo Stein, Johannes J Fahrenfort","doi":"10.1093/nc/niag052","DOIUrl":"https://doi.org/10.1093/nc/niag052","url":null,"abstract":"<p><p>Many studies have claimed the existence of unconscious priming, but a valid statistical procedure for substantiating such claims is often lacking. Absence of prime awareness is often inferred from non-significant p-values, and priming and awareness are typically tested by comparing two separate tests. In a classic study by Vorberg, D., Mattler, U., Heinecke, A., Schmidt, T., & Schwarzbach, J. (Different time courses for visual perception and action priming. Proceedings of the National Academy of Sciences 2003, 100(10), 6275-6280.), observers were slower to identify the direction of an arrow mask when it followed an arrow prime pointing in the opposite direction, despite being unable to identify the prime direction. Using this study as a starting point, we addressed several methodological shortcomings that are common in the field. First, we used a Bayesian methodological-statistical framework to test priming effects and prime awareness at the single-subject level across multiple sessions. Second, participants received extensive training in the prime awareness task to ensure they understood and executed the task as intended. Third, we directly compared prime awareness and priming. Using this approach, we found an indirect-task advantage consistent with unconscious priming at short prime-mask stimulus onset asynchronies (SOAs) in three out of six participants, under the assumption that the awareness task was at least as sensitive as the priming task. However, unlike in the original study by Vorberg and colleagues, evidence for unconscious priming was not consistently present across all SOAs, and awareness increased with SOA. Priming effects were highly consistent across participants, whereas awareness showed substantial inter-individual variability.</p>","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2026 1","pages":"niag052"},"PeriodicalIF":3.8,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13492662/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148801283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}