When presented with a set of possible reach targets, the movement trajectory can reveal aspects of the underlying competition for action selection. Current goals and physical salience can affect the trajectory of reaching movements to be attracted towards a distractor. Some studies demonstrated that stimuli associated with reward can also cause an attraction when reaching towards the reward stimulus was previously rewarded and the reward stimulus was physically salient. Here we demonstrate that a non-salient stimulus that signals the availability of reward attracts reaching movements even when moving towards it was never necessary nor rewarded. Moreover, the attraction by reward is particularly evident with short-latency movements. We conclude that neither physical salience nor reinforcing the movement towards a stimulus is necessary for reward to gain priority in the selection for action.

当呈现一组可能的到达目标时，运动轨迹可以揭示潜在的动作选择竞争方面。当前的目标和身体上的显着性会影响达到吸引注意力的动作轨迹。一些研究表明，与奖赏相关的刺激也可能在吸引以前受到奖赏刺激并且奖赏刺激在身体上很显着时引起吸引力。在这里，我们证明了一种非显着的刺激信号，它表明奖励的可用性，即使向其前进既没有必要也没有奖励，它也会吸引到达的动作。此外，奖励的吸引力在短时延运动中尤为明显。