Published: Jan. 1, 2024
Language: Английский
International Journal of Psychophysiology, Journal Year: 2025, Volume and Issue: 209, P. 112521 - 112521
Published: Feb. 1, 2025
Language: Английский
Citations
1
Proceedings of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 292(2044)
Published: April 1, 2025
Sensory–cognitive functions are intertwined with physiological processes such as the heart beat or respiration. For example, we tend to align our respiratory cycle expected events actions. This happens during sports but also in computer-based tasks and systematically structures phase around relevant events. However, studies show that trial-by-trial variations shape brain activity speed accuracy of individual responses. We both phenomena—the alignment respiration explanatory power on behaviour—co-exist. In fact, average an relative experimental trials trial-to-trial hold significant predictive behavioural performance, particular for reaction times. co-modulation behaviour emerges regardless whether generally breathes faster slower is strongest about 2 s prior participant’s The persistence these effects across 12 datasets 277 participants performing sensory–cognitive confirms robustness results, suggests a profound time-lagged influence structured sensory–motor
Language: Английский
Citations
1
Journal of Applied Biomedicine, Journal Year: 2025, Volume and Issue: 45(2), P. 181 - 188
Published: Feb. 28, 2025
Language: Английский
Citations
0
Psychophysiology, Journal Year: 2025, Volume and Issue: 62(4)
Published: April 1, 2025
Cardiac interoception is important for health and can be assessed in terms of accuracy (IAcc) sensibility (IS), at least. While IAcc measures the correspondence between recorded perceived heartbeats, IS means confidence interoceptive perceptions during task. The present study investigated if brain activity heartbeat tracking task associated with as well IS. Specifically, we were interested task-related power (TRP) alpha band (8-12 Hz), known to indicate task-specific cognitive functions such semantic, attentional, sensory processes, IS, respectively. In a sample 30 participants, found relatively higher TRP over left temporal parietal areas (vs. right) Furthermore, observed negative association Lower might that more pronounced processes are linked positive effect (independent from IS), which internal attention beneficial IAcc. We further discuss findings context methodological issues Taken together, pattern favors investigation (i.e., ratings) combination gain better access improve our understanding neural underpinnings (cardiac) interoception.
Language: Английский
Citations
0
Psychophysiology, Journal Year: 2025, Volume and Issue: 62(4)
Published: April 1, 2025
ABSTRACT Cardiac cycle duration, or interbeat interval (IBI), is the period from one heartbeat to next. IBI changes cycle. Periods with longer are associated higher sensitivity external sensory stimuli (exteroception). Warning cues induce a state of attentive anticipation characterized by an increase in (anticipatory cardiac deceleration) and faster reaction times. Aging reduces induced warning response speed. However, it unclear which mechanism, if any, connects time. The heartbeat‐evoked potential (HEP) cortical evoked heartbeat, modulated attention stimuli. HEP might be affected mediate association between output processing. We investigated was as well spontaneous fluctuations IBI. To explore impact age‐related responses, we included young older people ( N = 33/29; 26/23 women; mean age 23/61 years). analyzed electroencephalograms electrocardiograms simultaneously acquired during auditory cued simple time go/no‐go tasks. cue did not significant HEP. Yet, (not locked cue) HEP, amplitude average group. on trial‐by‐trial basis, independent fluctuations. In conclusion, found no evidence that mediates effect orienting
Language: Английский
Citations
0
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown
Published: April 19, 2025
Abstract The cardiovascular and respiratory systems are anatomically functionally integrated within the cardio-respiratory system. This close connection suggests that breathing continuously shapes cardiac interoceptive perception. Previously, we demonstrated interactions in heartbeat-evoked potential, a neural marker of cortical processing signals. Specifically, observed enhanced late potential positivity greater accuracy during exhalation compared to inhalation participants engaged tasks. Here, extended these findings time-frequency domain by reanalysing our previous dataset. We investigated heartbeat-modulated oscillations, examining power, inter-trial coherence, functional connectivity across cycle at rest, task (heartbeat counting), an exteroceptive control (cardiac-tone counting). Results revealed heartbeat counting task, heartbeat-related increased inhalation, particularly alpha theta frequency bands. These effects were primarily localized right fronto-centro-parietal electrodes. Furthermore, identified interactive relationships between oscillations band predicted accuracy. independent physiology absent task. proposed model framework predictive coding, suggesting occur multiple levels hierarchy: peripheral, brainstem, cortical. Our interpretation highlights role alpha-band modulations enhancing precision-weighting prediction errors, thereby facilitating attentional allocation signals suppression task-irrelevant distractors, exhalation.
Language: Английский
Citations
0
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: Feb. 2, 2024
Abstract Cardiac cycle duration, or interbeat interval (IBI), is the period from one heartbeat to next. IBI changes cycle. Periods with longer are associated higher sensitivity external sensory stimuli (exteroception). Warning cues induce a state of attentive anticipation characterized by an increase in (anticipatory cardiac deceleration) and faster reaction times. Ageing reduces induced warning response speed. However, it unclear which mechanism, if any, connects time. The heartbeat-evoked potential (HEP) cortical evoked heartbeat, modulated attention stimuli. HEP might be affected mediate association between output processing. We investigated was as well spontaneous fluctuations IBI. To explore impact age-related responses, we included young older people [N = 33/29; 26/23 women; mean age 23/61 years]. analysed electroencephalograms electrocardiograms simultaneously acquired during auditory cued simple time go/no-go tasks. cue did not significant HEP. Yet, (not locked cue) amplitude average group. on trial-by-trial basis, independent fluctuations. In conclusion, found no evidence that mediates effect orienting
Language: Английский
Citations
1
Physics of Life Reviews, Journal Year: 2024, Volume and Issue: 50, P. 226 - 227
Published: Sept. 1, 2024
Language: Английский
Citations
1
PNAS Nexus, Journal Year: 2024, Volume and Issue: 3(12)
Published: Nov. 25, 2024
Abstract Attention shapes our consciousness content and perception by increasing the probability of becoming aware and/or better encoding a selection incoming inner or outer sensory world. Engaging interoceptive exteroceptive attention should elicit distinctive neural responses to visceral external stimuli could be useful in detecting covert command-following unresponsive patients. We designed task engage healthy participants’ toward their heartbeats auditory investigated whether brain dynamics heartbeat-evoked potential (HEP) distinguished interoceptive–exteroceptive attention. Exteroceptive yielded an overall flattening power spectral density (PSD), whereas during interoception, there was decrease complexity, increase frontal connectivity theta oscillations, modulation HEP. Subject-level classifiers based on HEP features classified attentional state 17/20 participants. Kolmogorov permutation entropy, weighted symbolic mutual information showed comparable accuracy classifying exhibited synergic behavior with features. PSD demonstrated exceptional performance (20/20). Command-following assessed five brain-injured patients modified version task. An wakefulness syndrome/vegetative patient locked-in syndrome willful together explored markers suggest that were complying instructions. Our findings underscore importance mechanisms shaping processing expand framework heart–brain interactions employed for diagnostic purposes disorders consciousness.
Language: Английский
Citations
1
Journal of Clinical Medicine, Journal Year: 2024, Volume and Issue: 13(24), P. 7756 - 7756
Published: Dec. 19, 2024
Background/Objectives: The physiological basis underlying symptomatic versus asymptomatic premature ventricular contractions (PVCs) remains poorly understood. However, PVCs can significantly impair quality of life. In patients without structural heart disease, symptom intensity is crucial for guiding management strategies and determining the need medical or surgical intervention. this study, we aimed, first time, to examine associations between PVC symptoms cardiac interoception. Methods: This study included 34 participants with (20 women; median age = 42 years; 17 had PVCs) concomitant disorders. Interoception was assessed through interoceptive accuracy (IA) probed by two behavioral tests—mental tracking (MT) heartbeat detection (HBD)—and neurophysiological marker interoception, heartbeat-evoked potentials (HEPs). Symptom scores reported served as response variable in regression analysis, IA HEP predictors. Other factors such sex, age, percent body fat, trait anxiety, alexithymia were added models confounding variables. Results: IAMT higher PVCs. modulation HBD task associated intensity. A combined model incorporating both metrics showed highest predictive severity. Adding variables improved (lower AIC); however, only male sex emerged a significant negative predictor Conclusions: Our findings confirm association interoception Integrating measures enhances prediction accuracy, suggesting new ways develop diagnostic non-invasive treatment targeting management.
Language: Английский
Citations
1