26 research outputs found
並行集団（パラレルな場）が持つ電気生理学的機序の解明
No full textOsaka Metropolitan University (大阪公立大学)博士（保健学）学位記番号：論保健学第2号, 主査：石井, 良平第1章出典
Junya Orui, Keigo Shiraiwa, Fumie Tazaki, Takao Inoue, Masaya Ueda, Keita Ueno, Yasuo Naito, Ryouhei Ishii; Social Buffering Effects during Craft Activities in Parallel Group Session Revealed by EEG Analysis and Parasympathetic Activity. Neuropsychobiology 6 October 2023; 82 (5): 287–299. https://doi.org/10.1159/000531005
© 2023 The Author(s). Published by S. Karger AG, Basel
CC BY-NC 4.0
第2章出典
Orui, J., Shiraiwa, K., Tazaki, F. et al. Psychophysiological and interpersonal effects of parallel group crafting: a multimodal study using EEG and ECG. Sci Rep 14, 17883 (2024). https://doi.org/10.1038/s41598-024-68980-w
© The Author(s) 2024
CC BY-NC-ND 4.0doctoral thesi
Altruism Enhances Frontal Alpha Asymmetry and Reduces Sympathetic Activity: A Multimodal EEG-ECG Study With Implications for Therapeutic Interventions
No full textOrui J., Shiraiwa K., Inoue T., et al. Altruism Enhances Frontal Alpha Asymmetry and Reduces Sympathetic Activity: A Multimodal EEG-ECG Study With Implications for Therapeutic Interventions. Brain and Behavior 15, e70747 (2025); https://doi.org/10.1002/brb3.70747.Introduction: This study aimed to investigate neurophysiological differences between altruistic and selfish behaviors by simultaneously measuring electroencephalography (EEG) and electrocardiography (ECG). Specifically, we hypothesized that altruistic behavior would be associated with distinct patterns of cortical activity and autonomic responses. Methods: Thirty-one healthy participants (17 females; mean age: 20.00 ± 1.18 years) completed crafting tasks in a counterbalanced order under altruistic and selfish conditions. We measured and analyzed frontal alpha asymmetry (FAA) scores, cardiac sympathetic index (CSI), and cardiac vagal index (CVI). Additionally, we used eLORETA (exact-low resolution electromagnetic tomography) to examine current source density and functional connectivity patterns across brain regions. Results: The altruistic condition exhibited significantly higher FAA scores (p = 0.031, r = 0.45) and lower CSI (p = 0.048, Cohen's d = 0.37) compared to the selfish condition. Notably, novel correlations were observed between neurophysiological measures and specific brain regions. Specifically, FAA scores were associated with gamma activity in the anterior cingulate cortex during the altruistic condition (p = 0.071) and with precuneus activity during selfish behavior (p = 0.029). Additionally, distinct functional connectivity patterns were associated with autonomic activity in the altruistic condition. Parasympathetic activity negatively correlated with temporal-gamma connectivity (p = 0.002), and heart rate change negatively correlated with temporal-prefrontal theta connectivity (p = 0.048). Conclusions: Our findings reveal the intricate relationship between cortical activity, functional connectivity, and autonomic responses during altruistic versus selfish behaviors for the first time. This integrative approach sheds new light on the neural mechanisms underlying social cognition. This approach also has the potential to enhance our understanding of and ability to encourage prosocial behavior in various clinical and therapeutic settings
Occupational engagement affects personal recovery in people with mental disorders, and cognitive dysfunction and occupational dysfunction affect occupational engagement
No full textBackground: Personal recovery is a major goal in the field of mental health and welfare, and recovery support is of great importance. However, there has not yet been a full exploration of the direct relationship between personal recovery and occupational engagement and occupational and cognitive dysfunction, which are commonly treated within the field of occupational therapy. The aim of this study was to identify factors that influence recovery.
Methods: Included in the study were 30 of our patients with schizophrenia or mood disorders. Recovery was measured by the Japanese version of the Recovery Assessment Scale (RAS), occupational engagement by the Self-completed Occupational Performance Index (SOPI), occupational dysfunction by the Screening Tool for the Classification of Occupational Dysfunction (STOD), and cognitive function by the Brief Assessment of
Cognition in Schizophrenia (BACS). Correlation between each variable was examined by performing multiple regression analysis with RAS and SOPI as dependent variables.
Results: RAS had significant correlation with many domains of SOPI and with the occupational alienation domain of STOD, but not with BACS. SOPI and anti-anxiety medication dose affected RAS, while SOPI was affected by the occupational marginalization domain of STOD and the executive function domain of BACS.
Conclusions: Important factors in supporting recovery were focusing on the individual’s independent decision-making and executive functioning, and helping the individual identify and engage in meaningful occupations.Original Articlearticl
Neurophysiological effects of altruistically motivated craft activities in occupational therapy: A pilot study using frontal EEG and heart rate variability analysis
No full textIntroduction Occupational therapy utilizes altruistically motivated activities, potentially influencing both frontal alpha asymmetry (FAA) associated with approach motivation and autonomic responses. This study examines the effects of altruistically motivated craft activities on FAA and autonomic activity. Methods Fifteen rehabilitation students (21.0 ± 0.4 years) performed a netcraft task under altruistic and selfish conditions. EEG and ECG were measured during the craft task, and FAA and autonomic indices were analyzed. Results FAA score was significantly higher in the altruistic condition ( p = .040, d = 0.59), indicating increased approach motivation. Sympathetic activity was significantly lower in the altruistic condition ( p = .018, r = −0.68), indicating reduced sympathetic activity. Conclusions Altruistically motivated craft activities increased relative left frontal cortical activity and decreased sympathetic activity, highlighting their potential benefit in occupational therapy. These findings are not only consistent with previous research, but also support the inclusion of altruistic activities in therapeutic interventions to improve mental health and well-being
Cognitive reserve and sex difference in vulnerability to Alzheimer disease
No full textCognitive reserve is a concept proposed to explain the gap between neuropathological findings and clinical phenotypes of cognitive impairment. Education, occupation and leisure activity can be proxy-based factors affecting cognitive reserve, which are difficult to quantify objectively. Recent development of in vitro study of structural and functional evaluation has led to more precise quantification of cognitive reserve by residual-based measures. Cognitive reserve might be useful in understanding the pathogenesis of age-related cognitive decline, including neurodegenerative dementia. This paper examines the meaning of cognitive reserve and brain reserve with the aim of resolving the question of the sex difference in the incidence of Alzheimer diseas.REVIEW ARTICLEothe
Cognitive reserve and sex difference in vulnerability to Alzheimer disease
No full textCognitive reserve is a concept proposed to explain the gap between neuropathological findings and clinical phenotypes of cognitive impairment. Education, occupation and leisure activity can be proxy-based factors affecting cognitive reserve, which are difficult to quantify objectively. Recent development of in vitro study of structural and functional evaluation has led to more precise quantification of cognitive reserve by residual-based measures. Cognitive reserve might be useful in understanding the pathogenesis of age-related cognitive decline, including neurodegenerative dementia. This paper examines the meaning of cognitive reserve and brain reserve with the aim of resolving the question of the sex difference in the incidence of Alzheimer diseas.REVIEW ARTICL
Psychophysiological and interpersonal effects of parallel group crafting: a multimodal study using EEG and ECG
No full textAbstract In occupational therapy, crafts and groups are used as therapeutic tools, but their electrophysiological effects have not been well described. This study aimed to investigate the effects of group crafting on the physiological synchrony (PS) of dyadic heartbeats and on the autonomic activity and electroencephalogram (EEG) of individuals. In this cross-sectional study, individuals’ EEG and dyadic electrocardiogram (ECG) were measured during the task in a variety of conditions. The three conditions were alone, parallel, nonparallel. Autonomic activity from the subjects’ ECG, PS from the dyadic ECG, and current source density from exact Low Resolution Brain Electromagnetic Tomography (eLORETA) from subjects’ EEG were analyzed. Measurements from 30 healthy young adults showed that the parallel condition significantly increased subjects' parasympathetic activity and dyadic PS. Parallel condition and frontal midline theta influenced parasympathetic activity, whereas parasympathetic activity was not associated with PS. Dyadic lag value were correlated with frontal delta, beta, and gamma activity. The results suggest that crafting in parallel groups increases parasympathetic activity and PS through different mechanisms, despite the absence of direct interaction. They also explain the electrophysiological evidence for the use of crafts and groups in psychiatric occupational therapy, such as increased relaxation and PS
Current source density and functional connectivity of frontal midline theta rhythm during craft activities: EEG-LORETA study
No full textFrontal midline theta rhythm (Fmθ) has been shown to help connect distributed neural systems into brain functional networks for task execution. In this study, we investigated the current sources and functional connectivity of Fmθ that appeared during manual arts and crafts activities using the low resolution brain electromagnetic tomography (LORETA) method. Current sources of Fmθ are located in the anterior cingulate cortex and frontal lobe, and there are many functional connections in the delta, theta, alpha, beta, and gamma bands. These brain activities are suggested to reflect instantaneous increase in cognitive control associated with craft activities.ORIGINAL ARTICL
