Study On Interaction Between Grasping And Language Perception And Production

The neurological connection of language and grasping has been examined, while the behavioral relation between them has not yet been systematically explored.Two-dimensional pictures were used to consider the behavioral relationship between specific language tasks and grasping in the present research. Four experiments were included. The impact of picture perception with word perception on grasping was compared in the first experiment, and the role of semantic perception on grasping was then examined. The effects of speech production on grasping in different processing phases were explored in the second experiment. The effects of grasping on word perception through its semantic processing were examined in the third one. Finally, the roles of speech production on grasping in different processing phases were analyzed.Several results were obtained as follow: (1) Word perception influenced grasping by its semantic. In more words, the maximal grip aperture was bigger when the semantic of perceived word was "big" compared with when the semantic of perceived word was "small", while picture perception had no such effect. (2) The semantic processing of speech production had no effect on grasping, while the phonological processing had. (3) Grasping influenced word perception and speech production in two ways, one was the interruption of dual tasks, the other was the facilitating effect on semantic processing. (4) Grasping had no effect on the phonological processing of speech production.It was concluded that the neurological findings on the connection between grasping and language were verified by the behavioral results on the whole.