Inhibition of inappropriate responses allows to shape the motor behavior accordingly to the context in which a subject acts and is an essential executive function. Inhibition has been poorly investigated in Down Syndrome (DS) patients. We tested, using a countermanding task, the inhibitory control in a group of DS patients and in a group of…

In individuals with autism or autism-spectrum-disorder (ASD), conflicting results have been reported regarding the processing of biological motion tasks. As biological motion perception and recognition might be related to impaired imitation, gross motor skills and autism specific psychopathology in individuals with ASD, we performed a functional…

Offers a theory of how commonsense reasoning about motion may develop. Takes as fundamental the basic categories: action, object, space, cause, time, and movement. Suggests that very primitive elements could combine to provide schemes of motion recognizable in psychological accounts of infancy and generate prototypes of and rules for motion. (DK)