Search Results - "Mayumi Oyama-Higa"

Mental-disorder detection using chaos and nonlinear dynamical analysis of photoplethysmographic signals by Pham, Tuan D., Thang, Truong Cong, Oyama-Higa, Mayumi, Sugiyama, Masahide

“…•Chaos and nonlinear dynamical analysis are applied for mental-disorder detection.•Experimental results show significant detection improvement with feature…”
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Computerized assessment of communication for cognitive stimulation for people with cognitive decline using spectral-distortion measures and phylogenetic inference by Pham, Tuan D, Oyama-Higa, Mayumi, Truong, Cong-Thang, Okamoto, Kazushi, Futaba, Terufumi, Kanemoto, Shigeru, Sugiyama, Masahide, Lampe, Lisa

“…Therapeutic communication and interpersonal relationships in care homes can help people to improve their mental wellbeing. Assessment of the efficacy of these…”
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Discovery and Application of New Index for Cognitive Psychology by Oyama-Higa, M., Tiejun Miao

“…Fingertip pulsations (plethysmograms) were found to obey chaotic dynamics [1]. We applied chaos theory to analysis of the time series of plethysmograms under…”
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The Relation between Observers' Psychophysiological Conditions and Human Errors during Monitoring Task by Imanishi, A., Oyama-Higa, M.

“…In this research, we investigated the relation between observers' psychophysiological conditions and human errors made in the task of monitoring…”
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On the largest lyapunov exponents of finger plethysmogram and heart rate under anxiety, fear, and relief states by Imanishi, A., Oyama-Higa, M.

“…We investigated the largest Lyapunov exponents (LLEs) of finger plethysmogram (FPG) and heart rate (HR) under anxiety, fear and relief states and compared each…”
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Does the transition of the interval in perceptional alternation have a chaotic rhythm? by Itoh, Yasuo, Oyama - Higa, Mayumi

“…This study verified that the transition of the interval in perceptional alternation has a chaotic rhythm, but only in some cases. A wave was constructed by…”
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Possibility of mental health self-checks using divergence of pulse waves by Mayumi Oyama-Higa, Teiijun Miao, Junko Tsujino, Akira Imanishi

“…We conducted a nonlinear analysis of fingertip pulse waves and found that the Lyapunov exponent referencing the "divergence" of chaotic attractor trajectory of…”
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Does a Mother's Attachment to Her Child Affect Biological Information provided by the Child? -Chaos analysis of fingertip pulse waves of children by Oyama-Higa, M., Tsujino, J., Tanabiki, M.

“…Fingertip pulse waves of 242 children in the 0-to 5-year-old age group were measured and chaos analysis was performed on these waves to calculate the Lyapunov…”
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Exploring the Use of Pulse Waves as Psychological Indicators in Learning by Yuyu Hu, Miyoshi, Emako, Zhe Li, Oyama-Higa, Mayumi

“…This project seeks to establish a measurement system that uses physiological indicators to reflect learning efficiency and changes in mental state during…”
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Indication of Mental Health from Fingertip Pulse Waves and Its Application by Oyama-Higa, Mayumi, Ou, Fumitake

“…This article is a comprehensive review of recent studies of the authors on the indication of mental health from biological information contained in pulse…”
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Computerized Assessment of Communication for Cognitive Stimulation for People with Cognitive Decline Using Spectral-Distortion Measures and Phylogenetic Inference: e0118739 by Pham, Tuan D, Oyama-Higa, Mayumi, Truong, Cong-Thang, Okamoto, Kazushi, Futaba, Terufumi, Kanemoto, Shigeru, Sugiyama, Masahide, Lampe, Lisa

“…Therapeutic communication and interpersonal relationships in care homes can help people to improve their mental wellbeing. Assessment of the efficacy of these…”
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Using Pulse Waves for Self-Cognition by Hu, Yuyu, Oyama-Higa, Mayumi, Miyoshi, Emako

“…In this research, we obtain various indicators by analyzing pulse waves, which are then used to self-cognize one's own psychological state and characteristics…”
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The use of a non-linear analysis of pulse waves to measure the impact of music therapy and animal therapy on psychiatric care by Hirohashi, Y., Oyama-Higa, M.

“…This study examines the psychiatric effectiveness of music therapy and animal therapy. Unlike previous research into these modalities, the present study relies…”
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Analysis of dementia in aged subjects through chaos analysis of fingertip pulse waves by Oyama-Higa, M., Teijun Miao, Mizuno-Matsumoto, Y.

“…The fingertip pulse waves (plethysmograms) of 179 elderly people were measured and chaos analysis were performed on these waves to calculate the largest…”
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Modelling Plethysmogram Dynamics based on Baroreflex under Higher Cerebral Influences by Tiejun Miao, Shimoyama, O., Oyama-Higa, M.

“…A model on baroreflex controlled cardiovascular system was proposed by taking into account of influences of higher cerebral center. In addition to abilities of…”
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Longitudinal Study on Mental Interactions Between Difficult Children and Their Nursery Teacher Based on DUAL Measurements of Finger Pulse Waves by Tsujino, Junko, Oyama-Higa, Mayumi, Tanabiki, Mitsuko, Kihara, Hiroshi

“…In this study, DUAL measurements of finger pulse waves were taken from three children (Child A, Child B, and Child C) and their nursery teacher longitudinally…”
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Study of relations between the elderly and the care workers in the welfare facilities for the elderly, using non linear analysis of finger plethysmograms by Hirohashi, Y., Oyama-Higa, M., Sang-jae Lee

“…The fingertip pulse waves of some of the elderly living in welfare facilities and a number of staff working in a daycare center for the elderly and a special…”
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A time series change of biological information through chaos analysis in finger pulse waves after taking medicine with circulatory disease by Tsujino, J, Oyama-Higa, M

“…We studied effects of dosage of vasoactive medicine in chronological order by measuring the digital plethermograms. Several parameters obtained from analysis…”
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Detecting Problem Behavior in Children from Biological Signals: Validation through Chaos Analysis by Tsujino, Junko, Oyama-Higa, Mayumi, Tanabiki, Mitsuko

“…The relationship between biological signals and problem behavior in children was examined in a total of 87 children from a class of two-year-olds and a class…”
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What affects the Lyapunov exponents of finger plethysmogram? by Imanishi, A., Oyama-Higa, M.

“…This study investigated the relations between the largest Lyapunov exponents of the finger plethysmogram and pulse indices. First, we made a sine wave that had…”
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