Brain-heart interactions in the neurobiology of consciousness

Current Research in Neurobiology, Journal Year: 2022, Volume and Issue: 3, P. 100050 - 100050

Published: Jan. 1, 2022

Recent experimental evidence on patients with disorders of consciousness revealed that observing brain-heart interactions helps to detect residual consciousness, even in absence behavioral signs consciousness. Those findings support hypotheses suggesting visceral activity is involved the neurobiology and sum existing healthy participants which neural responses heartbeats reveal perceptual self-consciousness. More obtained through mathematical modeling physiological dynamics emotion processing prompted by an initial modulation from ascending vagal inputs brain, followed sustained bidirectional interactions. long-lasting causal role bodily emotions, feelings, potentially In this paper, theoretical landscape potential cognition reviewed, as well supporting these hypotheses. I advocate for methodological developments estimation uncover cardiac origin, levels, contents The ongoing depicts further than cortical evoked each heartbeat, presence non-linear, complex, communication between brain heartbeat dynamics. Further methodologies analyze may contribute a better understanding homeostatic-allostatic control, cognitive functions,

Language: Английский

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A practical guide to EEG hyperscanning in joint action research: from motivation to implementation

Social Cognitive and Affective Neuroscience, Journal Year: 2024, Volume and Issue: 19(1)

Published: Jan. 1, 2024

Developments in cognitive neuroscience have led to the emergence of hyperscanning, simultaneous measurement brain activity from multiple people. Hyperscanning is useful for investigating social cognition, including joint action, because its ability capture neural processes that occur within and between people as they coordinate actions toward a shared goal. Here, we provide practical guide researchers considering using hyperscanning study action seeking avoid frequently raised concerns skeptics. We focus specifically on Electroencephalography (EEG) which widely available optimally suited capturing fine-grained temporal dynamics coordination. Our guidelines cover questions are likely arise when planning project, ranging whether appropriate answering one's research considerations design, dependent variable selection, data analysis visualization. By following clear facilitate careful consideration theoretical implications design choices other methodological decisions, can mitigate interpretability issues maximize benefits paradigms.

Language: Английский

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Onscreen presence of instructors in video lectures affects learners’ neural synchrony and visual attention during multimedia learning

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(12)

Published: March 11, 2024

COVID-19 forced students to rely on online learning using multimedia tools, and continues impact education beyond the pandemic. In this study, we combined behavioral, eye-tracking, neuroimaging paradigms identify processes outcomes. College viewed four video lectures including slides with either an onscreen human instructor, animated or no instructor. Brain activity was recorded via fMRI, visual attention outcome assessed post-tests. Onscreen presence of compared instructor presence, resulted in superior post-test performance, less slide, more synchronized eye movements during learning, higher neural synchronization cortical networks associated socio-emotional processing working memory. Individual variation cognitive abilities intersubject revealed different levels conditions. The instructor-present condition evoked increased synchronization, likely reflecting extra demands attentional control, memory engagement, processing. Although instructors led comparable outcomes, effects were due dynamic interplay information vs. distraction. These findings reflect a benefit–cost trade-off where is enhanced only when benefits motivated by social outweigh costs brought about concurrent distraction unrelated learning.

Language: Английский

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Physiological synchrony and shared flow state in Javanese gamelan: positively associated while improvising, but not for traditional performance

Frontiers in Psychology, Journal Year: 2023, Volume and Issue: 14

Published: Aug. 17, 2023

The experience of shared flow refers to the optimal balance between challenge and ability for a given task, resulting from interpersonal action in group situation. performance Javanese gamelan is an ideal setting investigate flow, due requirement that all performers on varying instrumental parts work harmoniously, allowing its native equivalent, ngeli . To minimise disruption while still measuring it continuously, one way assess person’s state by physiological responses sympathetic (i.e., fight-or-flight) system, namely heart rate skin conductance. Flow has been related signatures, actions music-making have synchronised physiology. However, our knowledge, no study yet directly investigated links physiology flow. Therefore, this aimed associations states, synchrony, playing. Subsequently, we tested differences advanced beginner groups playing traditional pieces improvising. Firstly, factor analysis revealed two-factor solution Awareness Absorption self-reported Next, using inter-subject correlation synchrony circular shuffling infer significance, found greater proportion significance compared improvised experienced group, opposite group. Lastly, linear mixed models largely positive during playing, negative regardless levels. This demonstrates methodological possibilities quantitative contexts, potential traditional, or prescribed,

Language: Английский

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Bidirectional brain-body interactions during natural story listening

Cell Reports, Journal Year: 2024, Volume and Issue: 43(4), P. 114081 - 114081

Published: April 1, 2024

Narratives can synchronize neural and physiological signals between individuals, but the relationship these signals, underlying mechanism, is unclear. We hypothesized a top-down effect of cognition on arousal predicted that auditory narratives will drive not only brain also peripheral signals. find entrained gaze variation, saccade initiation, pupil size, heart rate. This consistent with autonomic function. bottom-up effect, whereby physiology affects arousal. Controlled breathing affected rate was by controlled saccades. Additionally, fluctuations in preceded size Gaze were all associated anterior-central Together, results suggest bidirectional causal effects function central circuits involved control

Language: Английский

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Inter-subject correlation of audience facial expressions predicts audience engagement during theatrical performances

iScience, Journal Year: 2024, Volume and Issue: 27(6), P. 109843 - 109843

Published: April 29, 2024

During performances, audiences experience various emotional states, and these are reflected in their ongoing facial expressions. We investigated if audience engagement could be determined by measuring the inter-subject correlation (ISC) of non-invasively recorded filmed faces multiple members at theatrical performances intensity different expressions throughout performances. Neutral, happy, anger, disgust expression ISCs accounted for up to 24% performance dramaturge's predictions engagement. Expression synchrony was greater between individuals close proximity, suggesting effects contagion or cognitive similarities neighboring individuals, whereas greatest who were younger, female, with levels empathy, showing that individual characteristics impact shared experiences. Together, our results show synchronization used as a real-time non-invasive indicator larger than achieved using previous approaches.

Language: Английский

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Audio‐visual concert performances synchronize audience's heart rates

Annals of the New York Academy of Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 3, 2025

Abstract People enjoy engaging with music. Live music concerts provide an excellent option to investigate real‐world experiences, and at the same time, use neurophysiological synchrony assess dynamic engagement. In current study, we assessed engagement in a live concert setting using of cardiorespiratory measures, comparing inter‐subject, stimulus–response, correlation, phase coherence. As might be enhanced by seeing musicians perform, presented audiences audio‐only (AO) audio‐visual (AV) piano performances. Only correlation measures were above chance level. time‐averaged across conditions, AV performances evoked higher inter‐subject heart rate (ISC‐HR). However, averaged pieces did not correspond self‐reported On other hand, time‐resolved analyses show that synchronized deceleration‐acceleration (HR) patterns, typical “orienting response” (an index directed attention), occurred within salient events section boundaries. That is, perform heightened audience structurally important moments Western classical Overall, could multisensory information shapes By different further highlight advantages time series analysis, specifically ISC‐HR, as robust measure holistic musical listening experiences naturalistic settings.

Language: Английский

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Trace: A research media player measuring real-time audience engagement

Behavior Research Methods, Journal Year: 2025, Volume and Issue: 57(1)

Published: Jan. 6, 2025

Abstract Measuring attention and engagement is essential for understanding a wide range of psychological phenomena. Advances in technology have made it possible to measure real-time naturalistic stimuli, providing ecologically valid insight into temporal dynamics. We developed research protocol called Trace , which records anonymous facial landmarks, expressions, patterns movement associated with screen-based media. runs standard internet browser resembles contemporary media player. It embedded the open-source package PsychoJS (the JavaScript sister library PsychoPy) hosted via Pavlovia, can be integrated behavioral methods. Developed over multiple iterations tested 200 participants three studies, including official broadcast major theatre production, powerful, user-friendly allowing researchers capture audience as part authentic, experiences.

Language: Английский

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Infradian cardiovascular rhythms and between subject cardiovascular coupling in Mars 500 prolonged confinement study

Acta Astronautica, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Inter-Subject Correlations of Pupillary Audience Responses

Journal of Media Psychology Theories Methods and Applications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

Abstract: This study introduces a novel VR-based approach to measure pupillary responses during media consumption. Researchers exposed participants 30 video messages in virtual TV viewing room, capturing pupil dilation and constriction via VR-integrated eye-tracking. By analyzing cross-receiver similarity (inter-subject correlations) of pupillometric responses, we could identify which specific an individual was watching. method worked best under normal conditions sensitive attentional manipulations. also found that with the most robust response signatures were more likely be remembered. Theoretical implications for quantifying exposure developing perceptual attention individuals audiences are discussed. Practically, this audience measurement applied various formats, including screen-based media, social VR/AR environments. In sum, highlights potential pupillometry understanding engagement dynamics naturalistic consumption settings.

Language: Английский

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