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Life motion signals modulate visual working memory

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Abstract

Previous research has demonstrated that biological motion (BM) cues can induce a reflexive attentional orienting effect, a phenomenon referred to as social attention. However, it remains undetermined whether BM cues can further affect higher-order cognitive processes, such as visual working memory (WM). By combining a modified central pre-cueing paradigm with a traditional WM change detection task, the current study investigated whether the walking direction of BM, as a non-predictive central cue, could modulate the encoding process of WM. Results revealed a significant improvement in WM performance for the items appearing at the location cued by the walking direction of BM. The observed effect disappeared when the BM cues were shown inverted, or when the critical biological characteristics of the cues were removed. Crucially, this effect could be extended to upright feet motion cues without global configuration, reflecting the key role of local BM signals in modulating WM. More importantly, such a BM-induced modulation effect was not observed with inanimate motion cues, although these cues can also elicit attentional effects. Our findings suggest that the attentional effect induced by life motion signals can penetrate to higher-order cognitive processes, and provide compelling evidence for the existence of “life motion detector” in the human brain from a high-level cognitive function perspective.

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Data availability

Data are available at the Knowledge Repository of the Institute of Psychology, Chinese Academy of Sciences (http://ir.psych.ac.cn/handle/311026/43025).

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Acknowledgements

This research was supported by grants from the STI2030-Major Projects (2022ZD0205100 and 2021ZD0203800), the National Natural Science Foundation of China (No. 31830037), the Strategic Priority Research Program (No. XDB32010300), the Interdisciplinary Innovation Team (JCTD-2021-06), the Science Foundation of Institute of Psychology, Chinese Academy of Sciences, and the Fundamental Research Funds for the Central Universities.

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Correspondence to Li Wang.

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Huang, S., Ge, Y., Wang, L. et al. Life motion signals modulate visual working memory. Psychon Bull Rev 31, 380–388 (2024). https://doi.org/10.3758/s13423-023-02362-7

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  • DOI: https://doi.org/10.3758/s13423-023-02362-7

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