Abstract
After distinguishing between neocortical abilities for executive control and subcortical sensory motor skills for proprioceptive and vestibular integration, we compare a sample of 116 normal preschoolers with a sample of 31 preschoolers receiving occupational therapeutical treatment. This is done in an experimental design controlled for age (mean: 49 months), sex, SES, linguistic abilities, and intelligence. Inhibition and theory-of-mind are measured with test batteries. Results show that children having deficits in sensory motor inhibition are less competent in conflict inhibition and in theoryof-mind. Regression analyses reveal that in the clinical sample conflict inhibition is a significantly stronger predictor of theory-of-mind than in the control group. These results point at a basic sensory motor inhibitory ability as a prerequisite for the development of theory-of-mind.
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