?
Может ли активация моторных программ ускорить обнаружение объекта в задаче зрительного поиска?
The compatibility effect (CE) is the acceleration of a report when the motor programme and object affodance match. The present study was aimed at elucidating the mechanisms of the CE within the framework of the classical visual search methodology. Previous studies in this area had a number of shortcomings: the activation of the motor programme occurred with the wrong or no leading hand, and there could be more than one target stimulus. In Experiment 1, subjects had to search for a target stimulus that could be congruent/incongruent to the movement they were performing. The movements were of four types: grasping/pinching with the palm downward/sideways. They corresponded to four categories of objects that were congruent to these movements. According to the results obtained, the objects that were grasping, regardless of their congruence with the movement they were performing, were favoured in the search. To test the assumption that the effect observed in Experiment 1 was caused by the execution of the motion, Experiment 2 was conducted. Here, subjects did not perform movements but searched for the same stimuli of all categories. The results of this experiment also showed a search advantage for objects from the grasping category. The results of two experiments showed that CE was not detected in visual search. The data obtained indicate a greater significance of the basic features of objects than knowledge of the mode of action. The results obtained cast doubt on the purely motor nature of the emergence of ES in tasks that do not involve interaction with a single object, but are aimed at analyzing the entire visual field. In particular, it is assumed that expectations about the number of targets and the category of objects play an important role in such tasks.