Volosin Márta, Nagybányai Nagy Olivér, Neszmélyi Bence, Horváth János
Institute of Cognitive Neuroscience and Psychology, HUN-REN Research Centre for Natural Sciences, Magyar Tudósok körútja 2, Budapest, H-1117, Hungary.
Institute of Psychology, University of Szeged, Egyetem utca 2, Szeged, H-6722, Hungary.
Psychol Res. 2025 Apr 23;89(3):94. doi: 10.1007/s00426-025-02121-4.
Motor parameters of simple, repetitive actions like tapping, pinching, or pushing a button differ as a function of their action effects - adding a consistent, immediate sound-effect to such actions leads to a decrease in applied force. This action-effect related motor adaptation occurs only, however, when the sound-effect follows actions within about 200 ms, which has been hypothesized to reflect a temporal limit of action-effect integration. Using a university student sample, the present study replicated the effect of action-sound effect delays on force application. Furthermore, given that the perception of action-effect contingencies, and that of temporal relations are deteriorated in schizophrenia, we explored the relationship between the schizotypy trait and the duration of the action-effect related motor optimization window. Participants pinched a force sensitive device every 3 s on their own volition, which elicited a tone with a delay increasing from block to block in 70 ms steps from 0 to 560 ms. The applied force gradually increased with action-effect delay, with an estimated force optimization window size of 290 ms, confirming the importance of temporal contiguity in action-effect related motor adaptation. A Bayes-factor based analysis provided evidence for no correlation between the motor optimization window size and schizotypy.
诸如轻敲、捏或按按钮等简单重复动作的运动参数会因其动作效果而有所不同——给这些动作添加一致的即时音效会导致施加力的减小。然而，这种与动作效果相关的运动适应仅在音效在约200毫秒内跟随动作时才会发生，据推测这反映了动作效果整合的时间限制。本研究以大学生为样本，重复了动作-音效延迟对力施加的影响。此外，鉴于精神分裂症患者对动作效果偶然性和时间关系的感知会变差，我们探讨了分裂型特质与动作效果相关运动优化窗口持续时间之间的关系。参与者自行每3秒捏一次力敏装置，这会引发一个音调，其延迟在各块之间以70毫秒的步长从0增加到560毫秒。施加的力随着动作效果延迟而逐渐增加，估计的力优化窗口大小为290毫秒，证实了时间连续性在动作效果相关运动适应中的重要性。基于贝叶斯因子的分析提供了证据，表明运动优化窗口大小与分裂型特质之间不存在相关性。
