Consciousness and Cognition最新文献

Priors for natural image statistics inform confidence in perceptual decisions.

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-25 DOI: 10.1016/j.concog.2025.103818

Rebecca K West, Emily J A-Izzeddin, David K Sewell, William J Harrison

{"title":"Priors for natural image statistics inform confidence in perceptual decisions.","authors":"Rebecca K West, Emily J A-Izzeddin, David K Sewell, William J Harrison","doi":"10.1016/j.concog.2025.103818","DOIUrl":"https://doi.org/10.1016/j.concog.2025.103818","url":null,"abstract":"Decision confidence plays a critical role in humans' ability to make adaptive decisions in a noisy perceptual world. Despite its importance, there is currently little consensus about the computations underlying confidence judgements in perceptual decisions. To better understand these mechanisms, we addressed the extent to which confidence is informed by a naturalistic prior distribution. Contrary to previous research, we did not require participants to internalise parameters of an arbitrary prior distribution. We instead used a novel psychophysical paradigm leveraging probability distributions of low-level image features in natural scenes, which are well-known to influence perception. Participants reported the subjective upright of naturalistic image patches, targets, and then reported their confidence in their orientation responses. We used computational modelling to relate the statistics of the low-level features in the targets to the average distribution of these features across many naturalistic images, a prior. Our results showed that participants' perceptual and importantly, their confidence judgments aligned with an internalised prior for image statistics. Overall, our study highlights the importance of naturalistic task designs that capitalise on existing, long-term priors to further understand the computational basis of confidence.","PeriodicalId":51358,"journal":{"name":"Consciousness and Cognition","volume":"128 ","pages":"103818"},"PeriodicalIF":2.1,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143048558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Immersive exposure to simulated visual hallucinations modulates high-level human cognition.

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-24 DOI: 10.1016/j.concog.2025.103808

Antonino Greco, Clara Rastelli, Andrea Ubaldi, Giuseppe Riva

{"title":"Immersive exposure to simulated visual hallucinations modulates high-level human cognition.","authors":"Antonino Greco, Clara Rastelli, Andrea Ubaldi, Giuseppe Riva","doi":"10.1016/j.concog.2025.103808","DOIUrl":"https://doi.org/10.1016/j.concog.2025.103808","url":null,"abstract":"Psychedelic drugs offer valuable insights into consciousness, but disentangling their causal effects on perceptual and high-level cognition is nontrivial. Technological advances in virtual reality (VR) and machine learning have enabled the immersive simulation of visual hallucinations. However, comprehensive experimental data on how these simulated hallucinations affects high-level human cognition is lacking. Here, we exposed human participants to VR panoramic videos and their psychedelic counterparts generated by the DeepDream algorithm. Participants exhibited reduced task-switching costs after simulated psychedelic exposure compared to naturalistic exposure, consistent with increased cognitive flexibility. No significant differences were observed between naturalistic and simulated psychedelic exposure in linguistic automatic association tasks at word and sentence levels. Crucially, visually grounded high-level cognitive processes were modulated by exposure to simulated hallucinations. Our results provide insights into the interdependence of bottom-up and top-down cognitive processes and altered states of consciousness without pharmacological intervention, potentially informing both basic neuroscience and clinical applications.","PeriodicalId":51358,"journal":{"name":"Consciousness and Cognition","volume":"128 ","pages":"103808"},"PeriodicalIF":2.1,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143043208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Opening the black box: Think Aloud as a method to study the spontaneous stream of consciousness. 打开黑盒子：大声思考作为一种研究自发意识流的方法。

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-15 DOI: 10.1016/j.concog.2025.103815

Anusha Garg, Shivang Shelat, Madeleine E Gross, Jonathan Smallwood, Paul Seli, Aman Taxali, Chandra S Sripada, Jonathan W Schooler

{"title":"Opening the black box: Think Aloud as a method to study the spontaneous stream of consciousness.","authors":"Anusha Garg, Shivang Shelat, Madeleine E Gross, Jonathan Smallwood, Paul Seli, Aman Taxali, Chandra S Sripada, Jonathan W Schooler","doi":"10.1016/j.concog.2025.103815","DOIUrl":"https://doi.org/10.1016/j.concog.2025.103815","url":null,"abstract":"Asking participants to Think Aloud is a common method for studying conscious experience, but it remains unclear whether this approach alters thought qualities-such as meta-awareness, rate of topic shifts, or the content of thoughts in task-absent conditions. To investigate this, we conducted two studies comparing thinking aloud to thinking silently. In Study 1, 111 participants alternated between 15-minute intervals of verbalizing and silently reflecting on their stream of consciousness in a counterbalanced design. A subset also reported topic shifts intermittently via self- and probe-catching methods. Results showed that the stream of consciousness was minimally reactive to the Think Aloud protocol, with no significant differences in meta-awareness and topic shifting rates. Moreover, among 21 thought qualities and 18 content topics analyzed, only three qualities (private thoughts, mind blanking, and session difficulty) and one topic (partner, intimacy, love, and sexual matters) differed between Think Aloud and Silent Think. In Study 2, 102 participants either did Think Aloud or Silent Think while responding to thought probes. Findings replicated the lack of differences in the frequency and meta-awareness of topic shifts between Think Aloud and Silent Think. Furthermore, no differences in reported cognitive load were observed between the two conditions. These results emphasize the value of the Think Aloud procedure for examining the stream of consciousness, demonstrating its reliability and minimal impact on the natural flow of thoughts. Thus, Think Aloud offers a robust model system for examining the otherwise unverbalized stream of consciousness in task-absent contexts.","PeriodicalId":51358,"journal":{"name":"Consciousness and Cognition","volume":"128 ","pages":"103815"},"PeriodicalIF":2.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143016092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimising episodic encoding within segmented virtual contexts. 在分段虚拟环境中优化情景编码。

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-04 DOI: 10.1016/j.concog.2024.103807

Matthew R Logie, David I Donaldson

{"title":"Optimising episodic encoding within segmented virtual contexts.","authors":"Matthew R Logie, David I Donaldson","doi":"10.1016/j.concog.2024.103807","DOIUrl":"https://doi.org/10.1016/j.concog.2024.103807","url":null,"abstract":"The encoding of episodic memories depends on segmentation; memory performance improves when segmentation is available and performance is impaired when segmentation is absent. Indeed, for episodic memories to be created, the encoding of information into long-term memory requires the experience of event boundaries (i.e., context-shifts defined by salient moments of change between packets of to-be-learned stimuli). According to this view episodic encoding, and therefore learning, is critically dependent on the nature of working memory. Motived by this theoretical framework, here we explore the effects of segmentation on long-term memory performance, investigating the possibility of optimising learning by aligning the presentation of stimuli to the capacity of working memory. Across two experiments, we examined whether manipulating the boundaries between events influences memory. Participants travelled within a virtual environment, with spatial-temporal gaps between virtual locations providing context-shifts to segment sequentially presented lists of words. Both accurate recall and memory for temporal order improve and the number of falsely recalled words reduces when reducing the quantity of information presented between boundaries. Taken together, the present results suggest that closely matching the quantity of information between boundaries to working memory capacity optimises long-term memory performance.","PeriodicalId":51358,"journal":{"name":"Consciousness and Cognition","volume":"128 ","pages":"103807"},"PeriodicalIF":2.1,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142933543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The priority state of items in visual working memory determines their influence on early visual processing. 视觉工作记忆中项目的优先状态决定了它们对早期视觉处理的影响。

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-01 Epub Date: 2024-12-19 DOI: 10.1016/j.concog.2024.103800

Dan Wang, Samson Chota, Luzi Xu, Stefan Van der Stigchel, Surya Gayet

{"title":"The priority state of items in visual working memory determines their influence on early visual processing.","authors":"Dan Wang, Samson Chota, Luzi Xu, Stefan Van der Stigchel, Surya Gayet","doi":"10.1016/j.concog.2024.103800","DOIUrl":"10.1016/j.concog.2024.103800","url":null,"abstract":"Items held in visual working memory (VWM) influence early visual processing by enhancing memory-matching visual input. Depending on current task demands, memory items can have different priority states. Here, we investigated how the priority state of items in VWM affects two key aspects of early visual processing: access to visual awareness and attention allocation. We used three perceptual tasks: the breaking continuous flash suppression task (Experiment 1), the attentional capture task (Experiment 2), and a visual search task (Experiment 3). We found that stimuli matching prioritized VWM items yielded a large perceptual advantage over stimuli matching non-prioritized VWM items (despite minimal memory loss). Additionally, stimuli matching non-prioritized memory items exhibited a (small but consistent) perceptual advantage over VWM-unrelated stimuli. Taken together, observers can flexibly de-prioritize and re-prioritize VWM contents based on current task demands, allowing observers to exert control over the extent to which VWM contents influence concurrent visual processing.","PeriodicalId":51358,"journal":{"name":"Consciousness and Cognition","volume":"127 ","pages":"103800"},"PeriodicalIF":2.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Drawing behaviour influences ongoing thought patterns and subsequent memory. 绘画行为会影响持续的思维模式和随后的记忆。

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-01 Epub Date: 2024-12-12 DOI: 10.1016/j.concog.2024.103791

Silvia Shiwei Zhou, Keanna Rowchan, Brontë Mckeown, Jonathan Smallwood, Jeffrey D Wammes

引用次数: 0

Introspection about forced and free choice: Accurate subjective time estimation for externally as well as self-determined actions. 对强迫和自由选择的反思：对外部和自我决定的行动进行准确的主观时间估计。

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-01 Epub Date: 2024-12-24 DOI: 10.1016/j.concog.2024.103804

Daniel Bratzke, Ian Grant Mackenzie, Hartmut Leuthold, Victor Mittelstädt

{"title":"Introspection about forced and free choice: Accurate subjective time estimation for externally as well as self-determined actions.","authors":"Daniel Bratzke, Ian Grant Mackenzie, Hartmut Leuthold, Victor Mittelstädt","doi":"10.1016/j.concog.2024.103804","DOIUrl":"10.1016/j.concog.2024.103804","url":null,"abstract":"Free-choice behavior is unique in that actions are internally self-determined, unlike forced-choice behavior, which is externally specified. Several studies suggest these two action modes can lead to different behavioral, affective, and motivational outcomes. We examined whether people estimate free-choice differently from forced-choice processing time due to possible introspective biases associated with these modes. Consistent with previous studies, free choices were slower than forced choices and action mode interacted with perceptual difficulty. Importantly, all effects in mean reaction times (RTs) were mirrored in mean introspective RTs (iRTs). Moreover, objective RTs alone could essentially predict iRTs without any contributing distortion of choice modes. Thus, introspection about RT appears equally accurate for both externally and self-determined actions, suggesting that iRTs are primarily based on a direct read-out of temporal information. Possibly, accurate introspection about processing time is a crucial basis for potentially distinct subjective experiences of free and forced choices.","PeriodicalId":51358,"journal":{"name":"Consciousness and Cognition","volume":"127 ","pages":"103804"},"PeriodicalIF":2.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142900276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-face processing in relation to self-referential tasks in 24-month-old infants: A study through eye movements and pupillometry measures. 24个月婴儿自我面孔加工与自我参照任务的关系：一项通过眼动和瞳孔测量的研究。

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-01 Epub Date: 2024-12-28 DOI: 10.1016/j.concog.2024.103803

Hiroshi Nitta, Yusuke Uto, Kengo Chaya, Kazuhide Hashiya

引用次数: 0

Functions of consciousness in emotional processing. 意识在情绪处理中的功能。

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-01 Epub Date: 2024-12-15 DOI: 10.1016/j.concog.2024.103801

Dylan Ludwig

引用次数: 0

Evidence for the dependence of visual and kinesthetic motor imagery on isolated visual and motor practice. 视觉和动觉运动意象依赖于孤立的视觉和运动练习的证据。

IF 2.1 3区心理学

Consciousness and Cognition Pub Date : 2025-01-01 Epub Date: 2024-12-24 DOI: 10.1016/j.concog.2024.103802

Carrie M Peters, Matthew W Scott, Ryan Jin, Minghao Ma, Sarah N Kraeutner, Nicola J Hodges

{"title":"Evidence for the dependence of visual and kinesthetic motor imagery on isolated visual and motor practice.","authors":"Carrie M Peters, Matthew W Scott, Ryan Jin, Minghao Ma, Sarah N Kraeutner, Nicola J Hodges","doi":"10.1016/j.concog.2024.103802","DOIUrl":"10.1016/j.concog.2024.103802","url":null,"abstract":"Motor imagery (MI) is a cognitive process believed to rely on the representation developed through experience. The equivalence between MI and execution has been questioned and the relationship between experience types and MI is unclear. We tested how observational and physical practice of hand gesture sequences impacted visual and kinesthetic MI and transfer to the unpracticed effector. Three groups (n = 22/gp.); no-vision physical practice, observational practice and no-practice control, practiced and visually and kinesthetically imagined performing the sequences. MI was assessed using mental chronometry, a movement time (MT) congruency measure and subjective ratings. Physical practice improved kinesthetic MI ratings and observational practice improved visual MI ratings. Contrary to predictions, physical practice did not enhance timing congruency. Imagined MTs were longer in transfer after physical practice, suggesting MI was not based on the same representation. These data question ideas of equivalence, with poor temporal matching after no-vision physical practice.","PeriodicalId":51358,"journal":{"name":"Consciousness and Cognition","volume":"127 ","pages":"103802"},"PeriodicalIF":2.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142900260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0