
연속적인 팔 도달 과제에서 사람들은 최소 두 개의 미래 도달 동작을 동시에 계획하며, 이러한 계획 과정은 서로 상호작용한다.


coremsg

Real world actions often comprise of a series of movements that cannot be entirely planned before initiation. When these actions are executed rapidly, the planning of multiple future movements needs to occur simultaneously with the ongoing action. How the brain solves this task remains unknown. Here we address this question with a new sequential arm reaching paradigm that manipulates how many future reaches are available for planning while controlling execution of the ongoing reach. We show that participants plan at least two future reaches simultaneously with an ongoing reach. Further, the planning processes of the two future reaches are not independent of one another. Evidence that the planning processes interact is two-fold. First, correcting for a visual perturbation of the ongoing reach target is slower when more future reaches are planned. Second, the curvature of the current reach is modified based on the next reach only when their planning processes temporally overlap. These interactions between future planning processes may enable smooth production of sequential actions by linking individual segments of a long sequence at the level of motor planning.

### Competing Interest Statement

The authors have declared no competing interest.

Future movement plans interact in sequential arm movements

연속적인-팔-도달-과제에서-다중-미래-움직임-계획의-상호작용


연속적인 팔 도달 과제에서 다중 미래 움직임 계획의 상호작용
