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Effects of observing own/others hand movement in different perspectives on mu rhythm suppression: an EEG study.
Shin, Nakyeong; Ikeda, Yuki; Motomura, Yuki; Higuchi, Shigekazu.
Afiliación
  • Shin N; Graduate School of Integrated Frontier Sciences, Kyushu University, 4-9-1 Shiobaru, Minami-Ku, Fukuoka City, Fukuoka, Japan. shin.nakyeong@gmail.com.
  • Ikeda Y; Research Fellow of the Japan Society for the Promotion of Science, Kojimachi Business Center, Building, 5-3-1 Kojimachi, Chiyoda-Ku, Tokyo, Japan. shin.nakyeong@gmail.com.
  • Motomura Y; Faculty of Health Science, Kyorin University, 6-20-2 Shinkawa, Mitaka-Shi, Tokyo, Japan.
  • Higuchi S; Research Fellow of the Japan Society for the Promotion of Science, Kojimachi Business Center, Building, 5-3-1 Kojimachi, Chiyoda-Ku, Tokyo, Japan.
J Physiol Anthropol ; 43(1): 21, 2024 Sep 04.
Article en En | MEDLINE | ID: mdl-39232843
ABSTRACT

BACKGROUND:

Previous studies have reported that the sense of "self" is associated with specific brain regions and neural network activities. In addition, the mirror system, which functions when executing or observing an action, might contribute to differentiating the self from others and form the basis of the sense of self as a fundamental physical representation. This study investigated whether differences in mu suppression, an indicator of mirror system activity, reflect cognitions related to self-other discrimination.

METHODS:

The participants were 30 of healthy college students. The participants observed short video clips of hand movements performed by themselves or actors from two perspectives (i.e., first-person and third-person). The electroencephalogram (EEG) mu rhythm (8-13 Hz) was measured during video observation as an index of mirror neuron system activity. EEG activity related to self-detection was analyzed using participants' hand movements as self-relevant stimuli.

RESULTS:

The results showed that mu suppression in the 8-13-Hz range exhibited perspective-dependent responses to self/other stimuli. There was a significant self-oriented mu suppression response in the first-person perspective. However, the study found no significant response orientation in the third-person perspective. The results suggest that mirror system activity may involve self-other discrimination differently depending on the perspective.

CONCLUSIONS:

In summary, this study examined the mirror system's activity for self and others using the EEG's mu suppression. As a result, it was suggested that differences in self and others or perspectives may influence mu suppression.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Electroencefalografía / Mano / Movimiento Límite: Adult / Female / Humans / Male Idioma: En Revista: J Physiol Anthropol Asunto de la revista: ANTROPOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Electroencefalografía / Mano / Movimiento Límite: Adult / Female / Humans / Male Idioma: En Revista: J Physiol Anthropol Asunto de la revista: ANTROPOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido