Neuroscience of Consciousness最新文献

Beyond accommodation: on the structural turn in computational functionalist theories of consciousness. 超越适应：论计算功能主义意识理论的结构转向。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-06-06 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf014

Francesco Ellia, Naotsugu Tsuchiya

引用次数: 0

Meditation and complexity: a review and synthesis of evidence. 冥想与复杂性：证据的回顾与综合。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-05-28 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf013

Daniel A Atad, Pedro A M Mediano, Fernando E Rosas, Aviva Berkovich-Ohana

{"title":"Meditation and complexity: a review and synthesis of evidence.","authors":"Daniel A Atad, Pedro A M Mediano, Fernando E Rosas, Aviva Berkovich-Ohana","doi":"10.1093/nc/niaf013","DOIUrl":"10.1093/nc/niaf013","url":null,"abstract":"Recent years have seen growing interest in the use of metrics inspired by complexity science for the study of consciousness. Work in this field has shown remarkable results in discerning conscious from unconscious states, and in characterizing states of altered conscious experience following psychedelic intake as involving enhanced complexity. Here, we study the relationship between complexity and a different kind of altered state of consciousness: meditation. We provide a scoping review of the growing literature studying the complexity of neural activity in meditation, disentangling different families of measures, short-term (state) from long-term (trait) effects, and meditation styles. Beyond families of measures used, our review uncovers a convergence toward identifying higher complexity during the meditative state when compared to waking rest or mind-wandering and decreased baseline complexity as a trait following regular meditation practice. In doing so, this review contributes to guide current debates and provides a framework for understanding the complexity of neural activity in meditation, while suggesting practical guidelines for future research.","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2025 1","pages":"niaf013"},"PeriodicalIF":3.1,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12118461/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144175809","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}

引用次数: 0

The Japanese version of the Phenomenological Control Scale. 日本版的现象学控制量表。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-05-21 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf008

Shu Imaizumi, Keisuke Suzuki

引用次数: 0

More relaxing than nature? The impact of ASMR content on psychological and physiological measures of parasympathetic activity. 比自然更让人放松？ASMR内容对副交感神经活动的心理和生理测量的影响。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-05-08 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf012

Daigo Hozaki, Takahiro Ezaki, Giulia L Poerio, Hirohito M Kondo

{"title":"More relaxing than nature? The impact of ASMR content on psychological and physiological measures of parasympathetic activity.","authors":"Daigo Hozaki, Takahiro Ezaki, Giulia L Poerio, Hirohito M Kondo","doi":"10.1093/nc/niaf012","DOIUrl":"10.1093/nc/niaf012","url":null,"abstract":"Autonomous sensory meridian response (ASMR) is a sensory-emotional phenomenon characterized by distinct tingling sensations and a sense of relaxation induced by specific auditory and visual stimuli. Although ASMR is recognized as a cross-modal experience, psychological and physiological mechanisms behind ASMR remain only partially understood. Across two experiments, we investigated these mechanisms. Experiment 1 showed that ASMR videos with combined audiovisual content elicited stronger tingling sensations than those with auditory-only content, suggesting an additive effect through sensory processing. In Experiment 2, we measured responses to ASMR and nature videos using finger photoplethysmography (PPG) and found that both types of videos reduced pulse rates compared to rest. Notably, ASMR videos caused a greater reduction in pulse rate than nature videos. These findings are discussed in relation to autonomic nervous system activation, cross-modal interactions, and the social grooming hypothesis, which posits that ASMR may replicate comforting effects of social bonding behaviors, such as grooming.","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2025 1","pages":"niaf012"},"PeriodicalIF":3.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12060867/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144025096","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}

引用次数: 0

Object relations are processed with, but not without, awareness. 客体关系是在意识的作用下处理的，但并非没有意识。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-05-08 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf010

Shaked Palgi, Tamara Bester-Arest, Nathan Faivre, Liad Mudrik

{"title":"Object relations are processed with, but not without, awareness.","authors":"Shaked Palgi, Tamara Bester-Arest, Nathan Faivre, Liad Mudrik","doi":"10.1093/nc/niaf010","DOIUrl":"10.1093/nc/niaf010","url":null,"abstract":"The scope of unconscious integration is widely debated. Here, we examined this question, focusing specifically on deciphering the relations between two associatively related objects, in a set of five behavioral and electrophysiological experiments. Participants were presented with masked pairs of related and unrelated objects and were asked to judge their relatedness. When the masked pairs were visible, we found both a behavioral priming effect and a difference in the magnitude of the electrophysiological N400 component for unrelated compared with related pairs. In sharp contrast, when the pairs were invisible (validated using both subjective and objective awareness measures), no convincing evidence was found for relatedness processing: with electroencephalography, no difference in N400 amplitude nor above-chance decoding of pair relations was found in two separate experiments. Based on these results, we conclude that the data do not support unconscious relatedness processing, suggesting that consciousness might have a prominent role in enabling relational integration beyond the single object level, which is in line with leading theories of consciousness.","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2025 1","pages":"niaf010"},"PeriodicalIF":3.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12063529/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144044317","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}

引用次数: 0

A quantum microtubule substrate of consciousness is experimentally supported and solves the binding and epiphenomenalism problems. 意识的量子微管基底得到实验支持，并解决了结合和副现象问题。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-05-06 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf011

Michael C Wiest

{"title":"A quantum microtubule substrate of consciousness is experimentally supported and solves the binding and epiphenomenalism problems.","authors":"Michael C Wiest","doi":"10.1093/nc/niaf011","DOIUrl":"10.1093/nc/niaf011","url":null,"abstract":"Recent experimental evidence, briefly reviewed here, points to intraneuronal microtubules as a functional target of inhalational anesthetics. This finding is consistent with the general hypothesis that the biophysical substrate of consciousness is a collective quantum state of microtubules and is specifically predicted by the Orchestrated Objective Reduction theory of Penrose and Hameroff. I also review experimental evidence that functionally relevant quantum effects occur in microtubules at room temperature, and direct physical evidence of a macroscopic quantum entangled state in the living human brain that is correlated with the conscious state and working memory performance. Having established the physical and biological plausibility of quantum microtubule states related to consciousness, I turn to consider potential practical advantages of a quantum brain and enormous theoretical advantages of a quantum consciousness model. In particular, I explain how the quantum model makes panprotopsychism a viable solution to physicalism's hard problem by solving the phenomenal binding or combination problem. Postulating a quantum physical substrate of consciousness solves the binding problem in principle but appears to leave us with an epiphenomenalism problem, meaning that consciousness seems to have no causal power to confer a fitness advantage, so its evolution remains as an inexplicable mystery. I propose that, contrary to a certain (zombie) intuition, the quantum approach can also solve this problem in a nontrivial way. The Orchestrated Objective Reduction (Orch OR) theory of Penrose and Hameroff embodies these advantages of a quantum model and also accounts for nonalgorithmic human understanding and the psychological arrow of time.","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2025 1","pages":"niaf011"},"PeriodicalIF":3.1,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12060853/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144057554","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}

引用次数: 0

How do inner screens enable imaginative experience? Applying the free-energy principle directly to the study of conscious experience. 内部屏幕是如何实现想象体验的？将自由能原理直接应用于有意识经验的研究。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-04-22 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf009

Chris Fields, Mahault Albarracin, Karl Friston, Alex Kiefer, Maxwell J D Ramstead, Adam Safron

{"title":"How do inner screens enable imaginative experience? Applying the free-energy principle directly to the study of conscious experience.","authors":"Chris Fields, Mahault Albarracin, Karl Friston, Alex Kiefer, Maxwell J D Ramstead, Adam Safron","doi":"10.1093/nc/niaf009","DOIUrl":"10.1093/nc/niaf009","url":null,"abstract":"This paper examines the constraints that the free-energy principle (FEP) places on possible model of consciousness, particularly models of attentional control and imaginative experiences, including episodic memory and planning. We first rehearse the classical and quantum formulations of the FEP, focusing on their application to multi-component systems, in which only some components interact directly with the external environment. In particular, we discuss the role of internal boundaries that have the structure of Markov blankets, and hence function as classical information channels between components. We then show how this formal structure supports models of attentional control and imaginative experience, with a focus on (i) how imaginative experience can employ the spatio-temporal and object-recognition reference frames employed in ordinary, non-imaginative experience and (ii) how imaginative experience can be internally generated but still surprising. We conclude by discussing the implementation, phenomenology, and phylogeny of imaginative experience, and the implications of the large state and trait variability of imaginative experience in humans.","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2025 1","pages":"niaf009"},"PeriodicalIF":3.1,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12013476/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144028002","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}

引用次数: 0

Exploring 5-MeO-DMT as a pharmacological model for deconstructed consciousness. 探索5-MeO-DMT作为解构意识的药理学模型。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-04-19 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf007

Christopher Timmermann, James W Sanders, David Reydellet, Tommaso Barba, Lisa X Luan, Óscar Soto Angona, Genís Ona, Giancarlo Allocca, Carl H Smith, Zachary G Daily, Natasha L Mason, Lilian Kloft-Heller, Martin Kuchar, Lucie Janeckova, Tomas Palenicek, David Erritzoe, Johannes G Ramaekers, Robin L Carhart-Harris, Malin Vedøy Uthaug

{"title":"Exploring 5-MeO-DMT as a pharmacological model for deconstructed consciousness.","authors":"Christopher Timmermann, James W Sanders, David Reydellet, Tommaso Barba, Lisa X Luan, Óscar Soto Angona, Genís Ona, Giancarlo Allocca, Carl H Smith, Zachary G Daily, Natasha L Mason, Lilian Kloft-Heller, Martin Kuchar, Lucie Janeckova, Tomas Palenicek, David Erritzoe, Johannes G Ramaekers, Robin L Carhart-Harris, Malin Vedøy Uthaug","doi":"10.1093/nc/niaf007","DOIUrl":"10.1093/nc/niaf007","url":null,"abstract":"5-MeO-DMT is a short-acting psychedelic that is anecdotally reported to induce a radical disruption of the self and a paradoxical quality of aroused, waking awareness that is nevertheless devoid of any specific perceptual contents. Here, we conducted an exploratory observational study of the phenomenological and neuronal effects of this compound. We collected micro-phenomenological interviews, psychometric questionnaires, and electroencephalography (EEG) in naturalistic ceremonial settings where 5-MeO-DMT was ingested. Results revealed that the 5-MeO-DMT experience followed a dynamic progression that-only in the most extreme cases-manifested as a complete absence of self-experience and other phenomenal content with preserved awareness. Furthermore, visual imagery, bodily self-disruption, narrative self-disruption, and reduced phenomenal distinctions occurred in a variable fashion. EEG analyses revealed the 5-MeO-DMT experience was characterised by (global) alpha and (posterior) beta power reductions, implying a mode of brain functioning where top-down models are inhibited. Our preliminary phenomenological findings confirm the potential utility of 5-MeO-DMT as a pharmacological model for deconstructed consciousness while noting the limitations of employing retrospective questionnaires for this purpose. Considering the exploratory nature of this study and its limitations inherent to its naturalistic nature, further research employing real-time experience sampling and phenomenologically trained participants in controlled environments could expand our findings to meaningfully inform the potential of this tool for the scientific study of consciousness.","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2025 1","pages":"niaf007"},"PeriodicalIF":3.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12010161/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144032505","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}

引用次数: 0

Visual imagery of familiar people and places in category selective cortex. 类别选择皮层中熟悉的人和地点的视觉意象。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-04-16 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf006

Catriona L Scrivener, Jessica A Teed, Edward H Silson

{"title":"Visual imagery of familiar people and places in category selective cortex.","authors":"Catriona L Scrivener, Jessica A Teed, Edward H Silson","doi":"10.1093/nc/niaf006","DOIUrl":"10.1093/nc/niaf006","url":null,"abstract":"Visual imagery is a dynamic process recruiting a network of brain regions. We used electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) fusion to investigate the dynamics of category selective imagery in medial parietal cortex (MPC), ventral temporal cortex (VTC), and primary visual cortex (V1). Subjects attended separate EEG and fMRI sessions where they created mental images of personally familiar people and place stimuli. The fMRI contrast comparing people and place imagery replicated previous findings of category-selectivity in the medial parietal cortex. In addition, greater activity for places was found in the ventral and lateral place memory areas, the frontal eye fields, the inferior temporal sulcus, and the intraparietal sulcus. In contrast, greater activity for people was found in the fusiform face area and the right posterior superior temporal sulcus. Using multivariate decoding analysis in fMRI, we could decode individual stimuli within the preferred category in VTC. A more complex pattern emerged in MPC, which represented information that was not restricted to the preferred category. We were also able to decode category and individual stimuli in the EEG data. EEG-fMRI fusion indicated similar timings in MPC and VTC activity during imagery. However, in the VTC, fusion was higher in place selective regions during an early time window, and higher in face selective regions in a later time window. In contrast, fusion correlations in V1 occurred later during the imagery period, possibly reflecting the top-down progression of mental imagery from category-selective regions to primary visual cortex.","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2025 1","pages":"niaf006"},"PeriodicalIF":3.1,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12003044/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144059928","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}

引用次数: 0

Deciphering temporal scales of visual awareness: insights from flicker frequency modulation in continuous flash suppression. 解读视觉意识的时间尺度：从连续闪光抑制中闪烁频率调制的见解。

IF 3.1

Neuroscience of Consciousness Pub Date : 2025-03-06 eCollection Date: 2025-01-01 DOI: 10.1093/nc/niaf005

Ishan Singhal, Narayanan Srinivasan

{"title":"Deciphering temporal scales of visual awareness: insights from flicker frequency modulation in continuous flash suppression.","authors":"Ishan Singhal, Narayanan Srinivasan","doi":"10.1093/nc/niaf005","DOIUrl":"10.1093/nc/niaf005","url":null,"abstract":"Evidence from temporal regularities in perception, temporal phenomenology, and neural dynamics indicate that our awareness evolves and devolves over several timescales. However, most theories of consciousness posit a single timescale of processing at the end of which a percept is rendered conscious. To show evidence for multiple timescales, we utilized continuous flash suppression (CFS). Based on a hierarchical framework of temporal phenomenology, we reasoned that different flicker rates (1, 4, 10, and 25 Hz) of the suppressor should be able to perturb phenomenologically distinct tasks. We designed four experiments that used different perceptual tasks (N = 48). The results showed that entry of contents into conscious awareness, their attentional sampling, perceptual grouping, and exiting from awareness were all maximally perturbed at distinct flicker frequencies of the suppressor in a CFS paradigm. Our demonstration shows that different flicker frequencies perturb different phenomenological aspects of awareness, and these flicker frequencies systematically map onto temporal hierarchies of timing of awareness.","PeriodicalId":52242,"journal":{"name":"Neuroscience of Consciousness","volume":"2025 1","pages":"niaf005"},"PeriodicalIF":3.1,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11884739/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143574645","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}

引用次数: 0