Subliminal priming modulates motor sequence learning.

Autor: Simpson MW; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China., Wu J; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China.; University of Chinese Academy of Sciences, Beijing, 100049, China., Ye Z; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China. yez@ion.ac.cn.
Jazyk: angličtina
Zdroj: Memory & cognition [Mem Cognit] 2024 Nov 21. Date of Electronic Publication: 2024 Nov 21.
DOI: 10.3758/s13421-024-01668-8
Abstrakt: Sequential behaviour is underpinned by the selection and inhibition of movement at appropriate points in space and time. Sequences embedded among movement patterns must be learnt, yet the contribution of response selection and inhibition to the acquisition of motor sequences remains poorly understood. We addressed this issue by overlaying the serial reaction time task (SRTT) with subliminal masked primes that differentially weighed response tendencies. In Experiment 1, twenty-four healthy young adults, and in Experiment 2, thirty-six participants, performed the SRTT with congruent (same position), incongruent (different position), or neutral (no prime) subliminal masked primes. Each condition featured an embedded eight-digit (Experiment 1) or ten-digit (Experiment 2) second-order sequence, with conditions presented in counterbalanced order during a single session. Sequence specific learning was observed under neutral and congruent prime conditions. Independent of sequence awareness, congruent primes reduced initial response latency and led to greater sequence specific learning compared with neutral primes. However, incongruent primes appeared to attenuate learning (Experiment 1). These results demonstrate that prime congruency modulates sequence specific learning below the threshold of conscious awareness. Congruent primes may elevate the salience of stimulus-response compounds and accentuate learning, but at the cost of increased awareness. Incongruent primes, and the induction of response conflict, attenuate sequence specific learning (Experiment 1) and may prevent the formation of cross-temporal contingencies necessary for implicit motor sequence learning.
Competing Interests: Declarations. Conflict of interest/Competing interests: The authors declare no competing interests. Ethics approval: This study was approved by the ethics committee of the Chinese Academy of Sciences Center for Excellence in Brain Science and Intelligence Technology and conducted in accordance with local and national ethical standards, and the Declaration of Helsinki. Consent to participate: Informed consent was obtained from all individual participants included in the study. Consent for publication: Participants were made aware that their data would be used for publication and that anonymised data would be saved to a publicly available online data repository.
(© 2024. The Author(s).)
Databáze: MEDLINE
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