Children with severe motor and intellectual disabilities (SMID) have limited reactions to their surroundings, which greatly affects their cognitive development. The present article focuses on the reaching behavior of one 10-year-old boy with severe motor and intellectual disabilities as an indicator of his awareness of his surroundings, in order to examine the relationship of visual attention, posture, and movement. The data revealed different aspects of his reaching time, the smoothness of his movements, and his usage of visual information, depending on the location of an object. Repetition of reaching appeared to improve related motions of his head, body, and arms, based on visual information. Reaching also affected his visual attention to spatial dimensions, which suggests the possibility of his improving his recognition of the researcher and looking at the eyes of the researcher. Changes in the object's location seemed to encourage more precise visual attention and adjustment of his posture and movements. Further tests with more varied participants are needed to verify the results of this case study.
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