Grasp cueing shows obligatory attention to action goals
Grasp cueing shows obligatory attention to action goals
复制标题
DOI：
10.1080/17470210701623738
复制
发表时间：
2008-06-01
影响因子：
1.7
通讯作者：
Lotz, Katharina
中科院分区：
文献类型：
--
作者：
Fischer, Martin H.;Prinz, Julia;Lotz, Katharina
为了了解认知机制在感知和行动中的基础，我们使用了一个简单的检测任务来确定从抓握姿势的感知预测行动目标需要多长时间，以及这种预测是否受到战略控制。健康的观察者在看到精准的抓握姿势或有力的抓握姿势后，会检测到小物体或大物体上的视觉探头。尽管这个姿势没有提供任何信息，但它能在350毫秒内将注意力转移到抓握一致的物体上。当姿势预测目标出现在抓取不一致的物体上时，观察者最初的战略性注意力分配被抓取和物体的一致性所推翻。这些结果可能有助于描述人类镜像神经元系统的特征，并揭示联合注意力是如何调整早期感知过程以进行行动预测的。
To understand the grounding of cognitive mechanisms in perception and action, we used a simple detection task to determine how long it takes to predict an action goal from the perception of grasp postures and whether this prediction is under strategic control. Healthy observers detected visual probes over small or large objects after seeing either a precision grip or a power grip posture. Although the posture was uninformative it induced attention shifts to the grasp-congruent object within 350 ms. When the posture predicted target appearance over the grasp-incongruent object, observers' initial strategic allocation of attention was overruled by the congruency between grasp and object. These results might help to characterize the human mirror neuron system and reveal how joint attention tunes early perceptual processes toward action prediction.