Effects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.

Interoceptive accuracy is an index of the ability to perceive an individual's internal bodily state, including heartbeat and respiration. Individual differences in interoceptive accuracy influence emotional recognition through autonomic nervous activity. However, the precise mechanism by which...

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Autores principales:	Yuto Tanaka, Yuri Terasawa, Satoshi Umeda
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6da900ec3916486e82e7e051c1cc400f
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spelling	oai:doaj.org-article:6da900ec3916486e82e7e051c1cc400f2021-12-02T20:14:50ZEffects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.1932-620310.1371/journal.pone.0256914https://doaj.org/article/6da900ec3916486e82e7e051c1cc400f2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0256914https://doaj.org/toc/1932-6203Interoceptive accuracy is an index of the ability to perceive an individual's internal bodily state, including heartbeat and respiration. Individual differences in interoceptive accuracy influence emotional recognition through autonomic nervous activity. However, the precise mechanism by which interoceptive accuracy affects autonomic reactivity remains unclear. Here, we investigated how cardiac reactivity induced by a non-affective external rhythm differed among individuals, using a heartbeat counting task. Because individuals with poor interoceptive accuracy cannot distinguish an external rhythm from their cardiac cycles, it has been hypothesized that the interoceptive effect on heart rate works differently in individuals with good interoceptive accuracy and those with poor interoceptive accuracy. Study participants observed a visual or auditory stimulus presented at a rhythm similar to the participants' resting heart rates. The stimulus rhythm was gradually changed from that of their resting heart rate, and we recorded electrocardiographs while participants were exposed to the stimuli. Individuals with good interoceptive accuracy exhibited a deceleration in heart rate when the rhythm of the auditory stimulus changed. In contrast, in the group with poor interoceptive accuracy, the heart rate decreased only when the stimulus became faster. They were unable to distinguish the rhythm of their own heartbeat from that of the external rhythm; therefore, we propose that such individuals recognize the stimuli at the pace of their heart rate. Individuals with good interoceptive accuracy were able to distinguish their heart rates from the external rhythm. A modality difference was not observed in this study, which suggests that both visual and auditory stimuli help mimic heart rate. These results may provide physiological evidence that autonomic reactivity influences the perception of the internal bodily state, and that interoception and the autonomic state interact to some degree.Yuto TanakaYuri TerasawaSatoshi UmedaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0256914 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yuto Tanaka Yuri Terasawa Satoshi Umeda Effects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.
description	Interoceptive accuracy is an index of the ability to perceive an individual's internal bodily state, including heartbeat and respiration. Individual differences in interoceptive accuracy influence emotional recognition through autonomic nervous activity. However, the precise mechanism by which interoceptive accuracy affects autonomic reactivity remains unclear. Here, we investigated how cardiac reactivity induced by a non-affective external rhythm differed among individuals, using a heartbeat counting task. Because individuals with poor interoceptive accuracy cannot distinguish an external rhythm from their cardiac cycles, it has been hypothesized that the interoceptive effect on heart rate works differently in individuals with good interoceptive accuracy and those with poor interoceptive accuracy. Study participants observed a visual or auditory stimulus presented at a rhythm similar to the participants' resting heart rates. The stimulus rhythm was gradually changed from that of their resting heart rate, and we recorded electrocardiographs while participants were exposed to the stimuli. Individuals with good interoceptive accuracy exhibited a deceleration in heart rate when the rhythm of the auditory stimulus changed. In contrast, in the group with poor interoceptive accuracy, the heart rate decreased only when the stimulus became faster. They were unable to distinguish the rhythm of their own heartbeat from that of the external rhythm; therefore, we propose that such individuals recognize the stimuli at the pace of their heart rate. Individuals with good interoceptive accuracy were able to distinguish their heart rates from the external rhythm. A modality difference was not observed in this study, which suggests that both visual and auditory stimuli help mimic heart rate. These results may provide physiological evidence that autonomic reactivity influences the perception of the internal bodily state, and that interoception and the autonomic state interact to some degree.
format	article
author	Yuto Tanaka Yuri Terasawa Satoshi Umeda
author_facet	Yuto Tanaka Yuri Terasawa Satoshi Umeda
author_sort	Yuto Tanaka
title	Effects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.
title_short	Effects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.
title_full	Effects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.
title_fullStr	Effects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.
title_full_unstemmed	Effects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.
title_sort	effects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/6da900ec3916486e82e7e051c1cc400f
work_keys_str_mv	AT yutotanaka effectsofinteroceptiveaccuracyinautonomicresponsestoexternalstimulibasedoncardiacrhythm AT yuriterasawa effectsofinteroceptiveaccuracyinautonomicresponsestoexternalstimulibasedoncardiacrhythm AT satoshiumeda effectsofinteroceptiveaccuracyinautonomicresponsestoexternalstimulibasedoncardiacrhythm
_version_	1718374650385268736

Effects of interoceptive accuracy in autonomic responses to external stimuli based on cardiac rhythm.

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