Daum Moritz M, Wronski Caroline, Harms Annekatrin, Gredebäck Gustaf
Department of Psychology, University of Zurich, Binzmuehlestrasse 14, Box 21, 8050, Zurich, Switzerland.
Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.
Exp Brain Res. 2016 Sep;234(9):2465-78. doi: 10.1007/s00221-016-4651-3. Epub 2016 Apr 19.
The present study investigates the plasticity of 7-month-old infants' orienting of attention during their perception of grasping actions. Previous research has shown that when infants observe a grasping hand, they shift their attention in line with the grasping direction, which is indicated by a reliable priming effect in this direction. The mechanisms behind this priming effect are largely unknown, and it is unclear how malleable this priming effect is with respect to a brief exposure to novel action-target contingencies. In a spatial-cueing paradigm, we presented a series of training trials prior to a series of test trials. These training sequences significantly modulated infants' attention. This suggests that action perception, when assessed through shifts of attention, is not solely based on the infants' grasping experience but quickly adapts to context-specific observed regularities.
本研究调查了7个月大婴儿在感知抓握动作过程中注意力定向的可塑性。先前的研究表明，当婴儿观察一只抓握的手时，他们会根据抓握方向转移注意力，这在该方向上表现为可靠的启动效应。这种启动效应背后的机制在很大程度上尚不清楚，而且对于短暂接触新的动作-目标关联时这种启动效应的可塑性程度也不清楚。在空间线索范式中，我们在一系列测试试验之前进行了一系列训练试验。这些训练序列显著调节了婴儿的注意力。这表明，当通过注意力转移来评估动作感知时，它不仅仅基于婴儿的抓握经验，还能快速适应特定情境下观察到的规律。
