Neural encoding of temporal and spatial plausibility in naturalistic motion: an awake monkey fMRI study

Tanaka, Reiji; Watanabe, Kei; Ban, Hiroshi; Kitazawa, Shigeru

doi:https://doi.org/10.1016/j.neuropsychologia.2025.109247

Neural encoding of temporal and spatial plausibility in naturalistic motion: an awake monkey fMRI study

Tanaka, Reiji; Watanabe, Kei; Ban, Hiroshi et al.

Neuropsychologia, 2025, 218, 109247

アクセス数:162件（2026-02-07 18:23 集計）

固定URL: https://hdl.handle.net/11094/102864

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タイトル	Neural encoding of temporal and spatial plausibility in naturalistic motion: an awake monkey fMRI study
著者	著者名 Tanaka, Reiji
	NRID 1000000772740 1000000772740 ORCID 0000-0002-3790-1078 0000-0002-3790-1078 researchmap permalink geo geo Scopus Author ID 56044938400 56044938400 著者名 Watanabe, Kei
	NRID 1000000467391 1000000467391 ORCID 0000-0001-6839-3216 0000-0001-6839-3216 researchmap permalink hiroshiban hiroshiban Scopus Author ID 14419904800 14419904800 著者名 Ban, Hiroshi
	NRID 1000000251231 1000000251231 ORCID 0000-0002-2067-0189 0000-0002-2067-0189 researchmap permalink shigerukitazawa shigerukitazawa Scopus Author ID 36865431600 36865431600 著者名 Kitazawa, Shigeru
キーワード等	Forward and reverse playback
	Monkey fMRI
	Natural video stimuli
	Time perception
	Time's arrow
内容	Tanaka R., Watanabe K., Ban H., et al. Neural encoding of temporal and spatial plausibility in naturalistic motion: an awake monkey fMRI study. Neuropsychologia 218, 109247 (2025); https://doi.org/10.1016/j.neuropsychologia.2025.109247.
抄録	Time flows in one direction, a physical constraint humans recognize, as reflected in proverbs such as “there is no crying over spilt milk.” Recent work from our laboratory has demonstrated that human participants rely on specific cues to discriminate the direction of time's arrow, with functional magnetic resonance imaging (fMRI) identifying neural networks selective for temporal directionality. These neural bases are likely shared across species, as the physical constraint of time is universal, even if other species may not “recognize” it as a law. In this study, we investigated whether and how the non-human primate brain encodes the naturalistic dynamics (plausibility) of biological and non-biological motion in temporal and spatial domains by presenting monkeys with video clips of biological and non-biological motion under three conditions: (1) normal (forward and upright), (2) temporally reversed, and (3) spatially inverted. Whole-brain analyses revealed that the superior temporal sulcus (STS) preferentially responded to forward, upright biological motion, reflecting sensitivity to naturalistic dynamics (plausibility) in both temporal and spatial domains. Within the STS, a consistent posterior-to-anterior gradient was observed in both monkeys: temporal plausibility was encoded posteriorly, spatial plausibility anteriorly, and both in the intermediate region. These results suggest that the primate STS is selectively tuned to the naturalistic dynamics of biological motion, with its posterior subregion contributing to the evaluation of temporal plausibility, which may underlie time-direction judgments in specific perceptual contexts.
出版者	Elsevier Ltd
収録物名	Neuropsychologia
巻(号)	218
ページ	109247
刊行年月	2025-11-05
言語	英語
ハンドルURL	https://hdl.handle.net/11094/102864
PISSN	00283932
eISSN	18733514
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.neuropsychologia.2025.109247
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Neuropsychologia. 2025, 218, p. 109247
DC.title	Neural encoding of temporal and spatial plausibility in naturalistic motion: an awake monkey fMRI study
DC.creator	Tanaka, Reiji
	Watanabe, Kei
	Ban, Hiroshi
	Kitazawa, Shigeru
DC.publisher	Elsevier Ltd
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-11-05
DC.identifier	https://doi.org/10.1016/j.neuropsychologia.2025.109247
DC.subject	Forward and reverse playback
	Monkey fMRI
	Natural video stimuli
	Time perception
	Time's arrow
DC.description	Tanaka R., Watanabe K., Ban H., et al. Neural encoding of temporal and spatial plausibility in naturalistic motion: an awake monkey fMRI study. Neuropsychologia 218, 109247 (2025); https://doi.org/10.1016/j.neuropsychologia.2025.109247.
DCTERMS.abstract	Time flows in one direction, a physical constraint humans recognize, as reflected in proverbs such as “there is no crying over spilt milk.” Recent work from our laboratory has demonstrated that human participants rely on specific cues to discriminate the direction of time's arrow, with functional magnetic resonance imaging (fMRI) identifying neural networks selective for temporal directionality. These neural bases are likely shared across species, as the physical constraint of time is universal, even if other species may not “recognize” it as a law. In this study, we investigated whether and how the non-human primate brain encodes the naturalistic dynamics (plausibility) of biological and non-biological motion in temporal and spatial domains by presenting monkeys with video clips of biological and non-biological motion under three conditions: (1) normal (forward and upright), (2) temporally reversed, and (3) spatially inverted. Whole-brain analyses revealed that the superior temporal sulcus (STS) preferentially responded to forward, upright biological motion, reflecting sensitivity to naturalistic dynamics (plausibility) in both temporal and spatial domains. Within the STS, a consistent posterior-to-anterior gradient was observed in both monkeys: temporal plausibility was encoded posteriorly, spatial plausibility anteriorly, and both in the intermediate region. These results suggest that the primate STS is selectively tuned to the naturalistic dynamics of biological motion, with its posterior subregion contributing to the evaluation of temporal plausibility, which may underlie time-direction judgments in specific perceptual contexts.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	102864
citation_title	Neural encoding of temporal and spatial plausibility in naturalistic motion: an awake monkey fMRI study
citation_author	Tanaka, Reiji
	Watanabe, Kei
	Ban, Hiroshi
	Kitazawa, Shigeru
citation_publisher	Elsevier Ltd
citation_language	英語
citation_date	2025-11-05
citation_journal_title	Neuropsychologia
citation_volume	218
citation_firstpage	109247
citation_doi	https://doi.org/10.1016/j.neuropsychologia.2025.109247
citation_public_url	https://hdl.handle.net/11094/102864

Neural encoding of temporal and spatial plausibility in naturalistic motion: an awake monkey fMRI study

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