Cyber-Physical Systems Laboratory, Institute of Electronics and Computer Science, Riga,Latvia.
Department of Kinesiology, The Pennsylvania State University, University Park, PA,USA.
Motor Control. 2021 Sep 16;25(4):680-703. doi: 10.1123/mc.2021-0044.
We present a review on the phenomenon of unintentional finger action seen when other fingers of the hand act intentionally. This phenomenon (enslaving) has been viewed as a consequence of both peripheral (e.g., connective tissue links and multifinger muscles) and neural (e.g., projections of corticospinal pathways) factors. Recent studies have shown relatively large and fast drifts in enslaving toward higher magnitudes, which are not perceived by subjects. These and other results emphasize the defining role of neural factors in enslaving. We analyze enslaving within the framework of the theory of motor control with spatial referent coordinates. This analysis suggests that unintentional finger force changes result from drifts of referent coordinates, possibly reflecting the spread of cortical excitation.
我们对一种现象进行了综述，即当手的其他手指有意动作时，会出现无意识的手指动作。这种现象（奴役）被认为是外周（例如结缔组织连接和多手指肌肉）和神经（例如皮质脊髓途径的投射）因素的共同结果。最近的研究表明，奴役会朝着更高的幅度发生较大且较快的漂移，而这些漂移是受试者无法感知到的。这些和其他结果强调了神经因素在奴役中的决定性作用。我们在具有空间参照坐标的运动控制理论框架内分析了奴役现象。这种分析表明，无意识的手指力变化是参照坐标漂移的结果，这可能反映了皮质兴奋的扩散。
