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Koreki A, Garfinkel S, Critchley H, Cope S, Agrawal N, Edwards M, Yogarajah M. Impaired cardiac modulation in patients with functional seizures: Results from a face intensity judgment task. Epilepsia 2023; 64:3073-3081. [PMID: 37611952 PMCID: PMC10952481 DOI: 10.1111/epi.17761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/19/2023] [Accepted: 08/21/2023] [Indexed: 08/25/2023]
Abstract
OBJECTIVE Although interoceptive abnormality in patients with functional seizure (FSs) has been demonstrated using explicit tasks, implicit measurements of interoception such as the effect of interoception on perceptual brain processes have not been investigated. It has been shown that perception is normally modulated by interoceptive signals related to the different phases (systole vs diastole) of the cardiac cycle (cardiac modulation effect). Given our previous findings using explicit measures of interoception, we hypothesized that cardiac modulation would be impaired in FSs. METHODS Thirty-two patients with FSs and 30 age- and sex-matched non-clinical individuals conducted a face intensity judgment task, in which their intensity rating when fearful or neutral faces was presented was compared between systolic and diastolic phases. They also conducted the heartbeat discrimination task as a measure of their capacity to integrate both interoceptive and exteroceptive information. RESULTS Patients with FSs had impaired cardiac modulation of the perception of neutral faces (corrected p = .044). Individual differences in the heartbeat discrimination task predicted the degree to which cardiac modulation occurred across the whole group (p = .028). This cardiac modulation effect was significantly associated with seizure severity (p = .021). Regardless of cardiac phase, patients rated fearful facial expressions as less intense compared to control participants (p = .006). SIGNIFICANCE These findings highlight impaired implicit cardiac modulation effects in patients with FSs. This reflects interoceptive dysfunction in patients with FSs, and an inability of the brain to integrate interoceptive signaling with perceptual processing. This may have implications for our understanding of the pathophysiology in FSs and inform novel diagnostic approaches.
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Affiliation(s)
- Akihiro Koreki
- Neurosciences Research CentreSt George's University of LondonLondonUK
- Department of PsychiatryNational Hospital Organization Shimofusa Psychiatric Medical CenterChibaJapan
| | | | - Hugo Critchley
- Brighton and Sussex Medical SchoolSussex UniversitySussexUK
| | - Sarah Cope
- Atkinson Morley Regional Neuroscience CentreSt George's HospitalLondonUK
| | - Niruj Agrawal
- Atkinson Morley Regional Neuroscience CentreSt George's HospitalLondonUK
| | - Mark Edwards
- Neurosciences Research CentreSt George's University of LondonLondonUK
- Atkinson Morley Regional Neuroscience CentreSt George's HospitalLondonUK
| | - Mahinda Yogarajah
- Department of Clinical & Experimental EpilepsyUCL Queen Square Institute of NeurologyLondonUK
- Chalfont Centre for EpilepsyLondonUK
- NIHR University College London Hospitals Biomedical Research CentreLondonUK
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Al E, Stephani T, Engelhardt M, Haegens S, Villringer A, Nikulin VV. Cardiac activity impacts cortical motor excitability. PLoS Biol 2023; 21:e3002393. [PMID: 38015826 PMCID: PMC10684011 DOI: 10.1371/journal.pbio.3002393] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 10/19/2023] [Indexed: 11/30/2023] Open
Abstract
Human cognition and action can be influenced by internal bodily processes such as heartbeats. For instance, somatosensory perception is impaired both during the systolic phase of the cardiac cycle and when heartbeats evoke stronger cortical responses. Here, we test whether these cardiac effects originate from overall changes in cortical excitability. Cortical and corticospinal excitability were assessed using electroencephalographic and electromyographic responses to transcranial magnetic stimulation while concurrently monitoring cardiac activity with electrocardiography. Cortical and corticospinal excitability were found to be highest during systole and following stronger neural responses to heartbeats. Furthermore, in a motor task, hand-muscle activity and the associated desynchronization of sensorimotor oscillations were stronger during systole. These results suggest that systolic cardiac signals have a facilitatory effect on motor excitability-in contrast to sensory attenuation that was previously reported for somatosensory perception. Thus, it is possible that distinct time windows exist across the cardiac cycle, optimizing either perception or action.
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Affiliation(s)
- Esra Al
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- MindBrainBody Institute, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
- Center for Stroke Research Berlin (CSB), Charité–Universitätsmedizin Berlin, Berlin, Germany
- Department of Psychiatry, Columbia University, New York, New York, United States of America
- Division of Systems Neuroscience, New York State Psychiatric Institute, New York, New York, United States of America
| | - Tilman Stephani
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- International Max Planck Research School NeuroCom, Leipzig, Germany
| | - Melina Engelhardt
- Charité–Universitätsmedizin Berlin, Klinik für Neurochirurgie, Berlin, Germany
- Charité–Universitätsmedizin Berlin, Einstein Center for Neurosciences, Berlin, Germany
| | - Saskia Haegens
- Department of Psychiatry, Columbia University, New York, New York, United States of America
- Division of Systems Neuroscience, New York State Psychiatric Institute, New York, New York, United States of America
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands
| | - Arno Villringer
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
- MindBrainBody Institute, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany
- Center for Stroke Research Berlin (CSB), Charité–Universitätsmedizin Berlin, Berlin, Germany
| | - Vadim V. Nikulin
- Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
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Engelen T, Solcà M, Tallon-Baudry C. Interoceptive rhythms in the brain. Nat Neurosci 2023; 26:1670-1684. [PMID: 37697110 DOI: 10.1038/s41593-023-01425-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/08/2023] [Indexed: 09/13/2023]
Abstract
Sensing internal bodily signals, or interoception, is fundamental to maintain life. However, interoception should not be viewed as an isolated domain, as it interacts with exteroception, cognition and action to ensure the integrity of the organism. Focusing on cardiac, respiratory and gastric rhythms, we review evidence that interoception is anatomically and functionally intertwined with the processing of signals from the external environment. Interactions arise at all stages, from the peripheral transduction of interoceptive signals to sensory processing and cortical integration, in a network that extends beyond core interoceptive regions. Interoceptive rhythms contribute to functions ranging from perceptual detection up to sense of self, or conversely compete with external inputs. Renewed interest in interoception revives long-standing issues on how the brain integrates and coordinates information in distributed regions, by means of oscillatory synchrony, predictive coding or multisensory integration. Considering interoception and exteroception in the same framework paves the way for biological modes of information processing specific to living organisms.
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Affiliation(s)
- Tahnée Engelen
- Cognitive and Computational Neuroscience Laboratory, Inserm, Ecole Normale Supérieure PSL University, Paris, France
| | - Marco Solcà
- Cognitive and Computational Neuroscience Laboratory, Inserm, Ecole Normale Supérieure PSL University, Paris, France
| | - Catherine Tallon-Baudry
- Cognitive and Computational Neuroscience Laboratory, Inserm, Ecole Normale Supérieure PSL University, Paris, France.
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Galvez-Pol A, Virdee P, Villacampa J, Kilner J. Active tactile discrimination is coupled with and modulated by the cardiac cycle. eLife 2022; 11:e78126. [PMID: 36222653 PMCID: PMC9671494 DOI: 10.7554/elife.78126] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 10/11/2022] [Indexed: 11/23/2022] Open
Abstract
Perception and cognition are modulated by the phase of the cardiac signal in which the stimuli are presented. This has been shown by locking the presentation of stimuli to distinct cardiac phases. However, in everyday life sensory information is not presented in this passive and phase-locked manner, instead we actively move and control our sensors to perceive the world. Whether active sensing is coupled and modulated with the cardiac cycle remains largely unknown. Here, we recorded the electrocardiograms of human participants while they actively performed a tactile grating orientation task. We show that the duration of subjects' touch varied as a function of the cardiac phase in which they initiated it. Touches initiated in the systole phase were held for longer periods of time than touches initiated in the diastole phase. This effect was most pronounced when elongating the duration of the touches to sense the most difficult gratings. Conversely, while touches in the control condition were coupled to the cardiac cycle, their length did not vary as a function of the phase in which these were initiated. Our results reveal that we actively spend more time sensing during systole periods, the cardiac phase associated with lower perceptual sensitivity (vs. diastole). In line with interoceptive inference accounts, these results indicate that we actively adjust the acquisition of sense data to our internal bodily cycles.
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Affiliation(s)
- Alejandro Galvez-Pol
- Department of Clinical and Movement Neurosciences, Queen Square Institute of Neurology, University College LondonLondonUnited Kingdom
- Psychology Department, University of the Balearic IslandsPalma de MallorcaSpain
| | - Pavandeep Virdee
- Department of Clinical and Movement Neurosciences, Queen Square Institute of Neurology, University College LondonLondonUnited Kingdom
| | - Javier Villacampa
- Psychology Department, University of the Balearic IslandsPalma de MallorcaSpain
| | - James Kilner
- Department of Clinical and Movement Neurosciences, Queen Square Institute of Neurology, University College LondonLondonUnited Kingdom
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Skora LI, Livermore JJA, Roelofs K. The functional role of cardiac activity in perception and action. Neurosci Biobehav Rev 2022; 137:104655. [PMID: 35395334 DOI: 10.1016/j.neubiorev.2022.104655] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 04/01/2022] [Accepted: 04/03/2022] [Indexed: 01/12/2023]
Abstract
SKORA, L.I., J.J.A. LIVERMORE and K. Roelofs. The functional role of cardiac activity in perception and action. NEUROSCI BIOBEHAV REV X(X) XXX-XXX, 2022. Patterns of cardiac activity continuously vary with environmental demands, accelerating or decelerating depending on circumstances. Simultaneously, cardiac cycle affects a host of higher-order processes, where systolic baroreceptor activation largely impairs processing. However, a unified functional perspective on the role of cardiac signal in perception and action has been lacking. Here, we combine the existing strands of literature and use threat-, anticipation-, and error-related cardiac deceleration to show that deceleration is an adaptive mechanism dynamically attenuating the baroreceptor signal associated with each heartbeat to minimise its impact on exteroceptive processing. This mechanism allows to enhance attention afforded to external signal and prepare an appropriate course of action. Conversely, acceleration is associated with a reduced need to attend externally, enhanced action tendencies and behavioural readjustment. This novel account demonstrates that dynamic adjustments in heart rate serve the purpose of regulating the level of precision afforded to internal versus external evidence in order to optimise perception and action. This highlights that the importance of cardiac signal in adaptive behaviour lies in its dynamic regulation.
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Affiliation(s)
- L I Skora
- Institute for Biological Psychology of Decision Making, Experimental Psychology, Heinrich-Heine-Universität, 40225 Düsseldorf, Germany; School of Psychology, University of Sussex, Brighton BN1 9RH, UK; Sackler Centre for Consciousness Science, University of Sussex, Brighton BN1 9RH, UK.
| | - J J A Livermore
- School of Psychology, University of Sussex, Brighton BN1 9RH, UK; Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525EN Nijmegen, The Netherlands
| | - K Roelofs
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525EN Nijmegen, The Netherlands; Behavioural Science Institute, Radboud University, 6525HE Nijmegen, The Netherlands
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Factors that influence performance in Olympic air-rifle and small-bore shooting: A systematic review. PLoS One 2021; 16:e0247353. [PMID: 33788853 PMCID: PMC8011779 DOI: 10.1371/journal.pone.0247353] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 02/03/2021] [Indexed: 12/16/2022] Open
Abstract
Background Air-rifle and small-bore shooting are fascinating Olympic sports due to their unique performance requirements for accuracy and precision. Objective The purpose of our study was to systematically research the literature to determine and summarize performance determinants in both air-rifle and small-bore shooting. Since some athletes participate internationally in both disciplines in competition, the disciplines must have some similarity in the performance structure. Therefore, we further investigated whether performance in air-rifle and small-bore shooting can be explained by the same performance determinants. Methods We systematically searched in four databases using combined keywords relevant to performance in air-rifle and small-bore shooting. The articles included had undergone peer-review and had a) a direct relation to shooting performance, b) an indirect relation by comparing the performance of shooters of different skill levels, and c) a practical relevance (directly controllable through training). After the quality of each article was assessed, the key data were extracted and summarized. Results The fourteen articles included achieved an average of 60 ± 14% (range 30–80%) in quality assessment. Altogether, articles covered 268 subjects (32% female), of which 19% were elite- and 28% were national-level athletes. Sixteen performance determinants were investigated, which were divided into anthropometric, technical-coordinative, physiological and psychological categories. Both in air-rifle and small-bore shooting, rifle stability and body sway were found to differ between elite- and national-level athletes. In both disciplines, body sway seemed to have no influence on shot score in elite- and national-level athletes. Similarly, heart rate did not correlate with shot score at nearly all performance levels in both disciplines. In national-level air-rifle athletes, horizontal rifle stability, aiming accuracy and aiming time were found to affect shot score. Conclusions To be competitive at a national-level in air-rifle shooting, a highly developed aiming process is needed to achieve a high shot score. Lack of data prevented us from drawing evidence-based conclusions in elite-level air-rifle athletes and in small-bore shooting. Future research should investigate possible performance determinants both in air-rifle and in small-bore shooting, especially with elite-level athletes, to confirm or disprove existing findings. Further research should use more complex analyses to investigate the multifaceted processes associated with different performance determinants.
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Cardio-Respiratory Monitoring in Archery Using a Smart Textile Based on Flexible Fiber Bragg Grating Sensors. SENSORS 2019; 19:s19163581. [PMID: 31426480 PMCID: PMC6721071 DOI: 10.3390/s19163581] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 08/14/2019] [Accepted: 08/16/2019] [Indexed: 01/26/2023]
Abstract
In precision sports, the control of breathing and heart rate is crucial to help the body to remain stable in the shooting position. To improve stability, archers try to adopt similar breathing patterns and to have a low heartbeat during each shot. We proposed an easy-to-use and unobtrusive smart textile (ST) which is able to detect chest wall excursions due to breathing and heart beating. The sensing part is based on two FBGs housed into a soft polymer matrix to optimize the adherence to the chest wall and the system robustness. The ST was assessed on volunteers to figure out its performance in the estimation of respiratory frequency (fR) and heart rate (HR). Then, the system was tested on two archers during four shooting sessions. This is the first study to monitor cardio-respiratory activity on archers during shooting. The good performance of the ST is supported by the low mean absolute percentage error for fR and HR estimation (≤1.97% and ≤5.74%, respectively), calculated with respect to reference signals (flow sensor for fR, photopletismography sensor for HR). Moreover, results showed the capability of the ST to estimate fR and HR during different phases of shooting action. The promising results motivate future investigations to speculate about the influence of fR and HR on archers' performance.
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The influence of physical exercise on the relation between the phase of cardiac cycle and shooting accuracy in biathlon. Eur J Sport Sci 2018; 19:567-575. [PMID: 30362887 PMCID: PMC6518456 DOI: 10.1080/17461391.2018.1535626] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
This study examined the influence of physical exercise on the relation between shooting accuracy and the phase of the cardiac cycle in which the shot is fired. Thirteen experienced biathletes (8 females, mean age 17 years) fired from the standing position at rest and right after a submaximal exercise on a bicycle ergometer. Shooting accuracy and the timing of each shot relative to the R-waves of the electrocardiogram (ECG) were recorded. Best shots (with greatest accuracy) and worst shots (with lowest accuracy) were fired prevalently in different phases of the cardiac cycle. In the rest condition, best shots were fired less frequently from 200 to 300 ms and more frequently from 500 to 600 ms after the R-wave, compared to worst shots. In the exercise condition, best shots were fired less frequently from 100 to 200 ms after the R-wave and from 20% to 30% of the R-R interval, compared to worst shots. These findings support the hypothesis that shooting accuracy is influenced by the cardiac cycle phase due to the ballistocardiac recoil generated at each heartbeat. To achieve best results athletes could be trained (e.g. through biofeedback) to fire within a specific phase of the cardiac cycle.
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Laaksonen MS, Finkenzeller T, Holmberg HC, Sattlecker G. The influence of physiobiomechanical parameters, technical aspects of shooting, and psychophysiological factors on biathlon performance: A review. JOURNAL OF SPORT AND HEALTH SCIENCE 2018; 7:394-404. [PMID: 30450247 PMCID: PMC6234024 DOI: 10.1016/j.jshs.2018.09.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/09/2018] [Accepted: 05/15/2018] [Indexed: 06/09/2023]
Abstract
The biathlon, an Olympic sporting discipline that combines cross-country skiing with rifle marksmanship, entails considerable physiological demands, as well as fine motor control while shooting after intense exercise and under mental pressure. Although much of our knowledge about cross-country skiing is probably also applicable to the biathlon, carrying the rifle and shooting under stress make this discipline somewhat unique. The present review summarizes and examines the scientific literature related to biathlon performance, with a focus on physiological and biomechanical factors and shooting technique, as well as psychophysiological aspects of shooting performance. We conclude with suggestions for future research designed to extend our knowledge about the biathlon, which is presently quite limited.
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Affiliation(s)
- Marko S. Laaksonen
- Department of Health Sciences, Swedish Winter Sports Research Centre, Mid Sweden University, Östersund 83125, Sweden
| | - Thomas Finkenzeller
- Department of Sport Science and Kinesiology, Paris Lodron University of Salzburg, Salzburg 5020, Austria
| | - Hans-Christer Holmberg
- Department of Health Sciences, Swedish Winter Sports Research Centre, Mid Sweden University, Östersund 83125, Sweden
- School of Sport Sciences, UiT The Arctic University of Norway, Tromsø 9019, Norway
| | - Gerold Sattlecker
- Department of Sport Science and Kinesiology, Paris Lodron University of Salzburg, Salzburg 5020, Austria
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