The Vagus Nerve as a Gateway to Body Ownership: taVNS Reduces Susceptibility to a Virtual Version of the Cardiac and Tactile Rubber Hand Illusion

Psychophysiology, Год журнала: 2025, Номер 62(3)

Опубликована: Март 1, 2025

ABSTRACT Transcutaneous auricular vagus nerve stimulation (taVNS) has been shown to influence cognitive and emotional function enhance interoceptive awareness. This study investigates if taVNS effects extend the experience of body ownership, as measured via susceptibility rubber hand illusion (RHI) in a virtual reality setting. The experiment involved 27 participants who underwent real sham two separate sessions while experiencing synchronous or asynchronous visuo‐cardiac visuo‐tactile feedback on arm place their own. Results indicated that active compared decreased sensitivity both cardiac tactile trials. Specifically, greater proprioceptive drift difference (PDD) toward was observed for trials only during ( t (26) = −4.58, p bonf < 0.001) but not 1.00) stimulation. A similar pattern also subjective where led ownership than −3.52, 0.010) These findings suggest might making individuals more attuned bodily signals less susceptible illusions. Additionally, physiological measures such heart rate (HR), variability (HRV), skin sympathetic nervous activity (SKNA) were assessed explore autonomic taVNS. We decrease HR 4.30, 0.001), an increase SKNA −4.40, −4.85, 0.002). contribute understanding nerve's role integrating visceral somatosensory signals, with implications clinical applications conditions characterized by altered interoception ownership.

Язык: Английский

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Heart–Brain Axis: A Narrative Review of the Interaction between Depression and Arrhythmia

Biomedicines, Год журнала: 2024, Номер 12(8), С. 1719 - 1719

Опубликована: Авг. 1, 2024

Arrhythmias and depression are recognized as diseases of the heart brain, respectively, both major health threats that often co-occur with a bidirectional causal relationship. The autonomic nervous system (ANS) serves crucial component heart–brain axis (HBA) pathway interoception. Cardiac activity can influence emotional states through ascending interoceptive pathways, while psychological stress precipitate arrhythmias via ANS. However, HBA interoception frameworks considered overly broad, precise mechanisms underlying relationship between remain unclear. This narrative review aims to synthesize existing literature, focusing on pathological ANS in arrhythmia integrating other potential detail interactions. In communication we emphasize considering various internal factors such genes, personality traits, stress, endocrine system, inflammation, 5-hydroxytryptamine, behavioral factors. Current research employs multidisciplinary knowledge elucidate relationships, deeper understanding these interactions help optimize clinical treatment strategies. From broader perspective, this study emphasizes importance body complex, interconnected rather than treating organs isolation. Investigating enhance our disease pathogenesis advances medical science, ultimately improving human quality life.

Язык: Английский

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Neuroimaging meta-analyses reveal convergence of interoception, emotion, and social cognition across neurodegenerative diseases.

Biological Psychiatry, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

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From feeling chilly to burning up: How thermal signals shape the physiological state of the body and impact physical, emotional, and social well-being

Neuroscience & Biobehavioral Reviews, Год журнала: 2025, Номер unknown, С. 105992 - 105992

Опубликована: Янв. 1, 2025

Язык: Английский

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Intergenerational Transaction of Emotional Health in Collective Family Context: Family Functioning, Parental and Children’s Gratitude, and Their Depression

Healthcare, Год журнала: 2025, Номер 13(2), С. 147 - 147

Опубликована: Янв. 14, 2025

Background: The current study is intended to examine how positive family functioning, collectively constructed by parents and children in the context, may contribute their gratitude depression, two pivotal human emotions closely related health, which depression of are assumed affect each other bidirectionally parental children’s expected link relations between functioning depression. Methods: data for analysis came from a community sample 310 Chinese parent–child dyads, were measured Family Functioning Style Scale (FFSS), Gratitude Questionnaire (GQ), subscale Brief Symptom Inventory (BSI) both parent child participants. Results: results indicated that contributed higher less affected positively. Furthermore, serial mediation analyses discovered complex processes actor’s or through links partner effect actor Conclusions: Findings prove collective effects on emotional development among children, impact lead them mediated effects. For this, pro-family health-related policies services should be provided promote management home context enhance health children.

Язык: Английский

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Is cultural context the crucial touch? Neurophysiological and self-reported responses to affective touch in women in South Africa and the United Kingdom.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Abstract Affective touch, involving touch-sensitive C-tactile (CT-) afferent nerve fibres, is integral to human development and wellbeing. Despite presumed cultural differences, affective touch research typically includes ‘Western’, minority-world contexts, with findings extrapolated cross-culturally. We report the first cross-cultural study experimentally investigate subjective neurophysiological correlates of in women South Africa (SA) United Kingdom (UK) using (1) ratings, (2) cortical oscillations for slow CT-optimal (vs. faster non-CT-optimal) on two body regions (arm, palm). Cultural context modulated experiences: SA UK) participants rated as more positive less intense, enhanced differentiation sensorimotor beta band oscillations, especially during palm touch. UK differentiated between stroking speeds, opposite directions effects at arm frontal theta oscillations. Results highlight importance experience neural processing

Язык: Английский

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Interoception and emotional regulation in autistic children through an occupational therapy perspective: A literature review

Brazilian Journal of Science, Год журнала: 2025, Номер 4(2), С. 1 - 14

Опубликована: Янв. 23, 2025

Understanding the interplay between interoception and emotional regulation is critical for advancing occupational therapy practices autistic children adolescents. These individuals often experience interoceptive processing difficulties, hindering management, daily functioning, societal participation. This review examines relationship addresses relevant interventions to support these skills. To explore identify effective that can inform individuals. A comprehensive search was conducted across three central electronic databases— PubMed, PsycINFO, Google Scholar studies examined in with autism. Studies were from 2013 2024. The combined database-specific controlled language keywords related interoception, regulation, therapy, autism spectrum disorder. total of 49 meeting inclusion criteria included. highlights intricate connections children, emphasizing challenges such as alexithymia reduced awareness. Interventions include cognitive behavioral mindfulness-based approaches, specialized programs like Aligning Dimensions Interoceptive Experience Interoception Curriculum. strategies potentially enhance well-being, self-regulation, engagement. are foundational elements clinical reasoning therapists. Tailored, neurodiversity-affirmative promote resilience improve participation activities Further research necessary develop inclusive ethically aligned meet needs both clinicians people. study underscores significance integrating interoceptive-based into therapeutic address fostering their holistic development inclusion.

Язык: Английский

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Boredom signals deviation from a cognitive homeostatic set point

Communications Psychology, Год журнала: 2025, Номер 3(1)

Опубликована: Фев. 10, 2025

Boredom is the feeling of wanting but failing to engage mind and can be conceived as one among many signals suboptimal utilization cognitive neural resources. Using homeostasis an analogy, this perspective argues that boredom represents a signal indicating deviation from optimal engagement—that is, homeostatic set point. Within model, allostasis accounts for chronic (i.e., trait proneness), according which faulty internal models are responsible why highly prone may unrealistic expectations engagement. In other words, model characterizes dynamic response both external exigencies, leading testable hypotheses nature state disposition. Furthermore, presents broader notion humans strive optimally with their environs maintain kind set-point. Humans driven deploy resources in ways – homeostasis. This outlines case range.

Язык: Английский

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Altered spatiotemporal brain dynamics of interoception in behavioural-variant frontotemporal dementia

EBioMedicine, Год журнала: 2025, Номер 113, С. 105614 - 105614

Опубликована: Фев. 22, 2025

Язык: Английский

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Computational Approaches for Uncovering Interoceptive Mechanisms in Psychiatric Disorders and Their Biological Basis

Current topics in behavioral neurosciences, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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