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Kim SB, Kye SA, Lee OS. Development of digital mirror therapy for stroke-severe patients. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2023; 2023:1-4. [PMID: 38082772 DOI: 10.1109/embc40787.2023.10340774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Mirror therapy (MT), which is used in the existing stroke rehabilitation environment, has significant limitations for use with severe stroke patients. Since mirrors only reflect symmetrical movement, allowing a patient to observe precise asymmetrical movement is impossible. This study proposes a new MT system by developing a pyramid hologram technology that uses delayed motion to create realistic images. Significant differences, observed via electroencephalogram, were shown in all motor cortex channels immediately after the event in the delayed condition when compared to before the event (C3: p < 0.001; Cz: p < 0.001, C4: p < 0.001). The illusion of asymmetrical movement using the proposed system can be applied to severe stroke patients to increase the positive outcome of rehabilitation.
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Fiveash A, Burger B, Canette LH, Bedoin N, Tillmann B. When Visual Cues Do Not Help the Beat: Evidence for a Detrimental Effect of Moving Point-Light Figures on Rhythmic Priming. Front Psychol 2022; 13:807987. [PMID: 35185727 PMCID: PMC8855071 DOI: 10.3389/fpsyg.2022.807987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/10/2022] [Indexed: 11/13/2022] Open
Abstract
Rhythm perception involves strong auditory-motor connections that can be enhanced with movement. However, it is unclear whether just seeing someone moving to a rhythm can enhance auditory-motor coupling, resulting in stronger entrainment. Rhythmic priming studies show that presenting regular rhythms before naturally spoken sentences can enhance grammaticality judgments compared to irregular rhythms or other baseline conditions. The current study investigated whether introducing a point-light figure moving in time with regular rhythms could enhance the rhythmic priming effect. Three experiments revealed that the addition of a visual cue did not benefit rhythmic priming in comparison to auditory conditions with a static image. In Experiment 1 (27 7–8-year-old children), grammaticality judgments were poorer after audio-visual regular rhythms (with a bouncing point-light figure) compared to auditory-only regular rhythms. In Experiments 2 (31 adults) and 3 (31 different adults), there was no difference in grammaticality judgments after audio-visual regular rhythms compared to auditory-only irregular rhythms for either a bouncing point-light figure (Experiment 2) or a swaying point-light figure (Experiment 3). Comparison of the observed performance with previous data suggested that the audio-visual component removed the regular prime benefit. These findings suggest that the visual cues used in this study do not enhance rhythmic priming and could hinder the effect by potentially creating a dual-task situation. In addition, individual differences in sensory-motor and social scales of music reward influenced the effect of the visual cue. Implications for future audio-visual experiments aiming to enhance beat processing, and the importance of individual differences will be discussed.
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Affiliation(s)
- Anna Fiveash
- Lyon Neuroscience Research Center, CNRS, UMR 5292, INSERM, U1028, Lyon, France
- University of Lyon 1, Lyon, France
- *Correspondence: Anna Fiveash,
| | - Birgitta Burger
- Institute for Systematic Musicology, University of Hamburg, Hamburg, Germany
| | - Laure-Hélène Canette
- Lyon Neuroscience Research Center, CNRS, UMR 5292, INSERM, U1028, Lyon, France
- University of Lyon 1, Lyon, France
- University of Burgundy, F-21000, LEAD-CNRS UMR 5022, Dijon, France
| | - Nathalie Bedoin
- Lyon Neuroscience Research Center, CNRS, UMR 5292, INSERM, U1028, Lyon, France
- University of Lyon 1, Lyon, France
- University of Lyon 2, Lyon, France
| | - Barbara Tillmann
- Lyon Neuroscience Research Center, CNRS, UMR 5292, INSERM, U1028, Lyon, France
- University of Lyon 1, Lyon, France
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