Children with developmental coordination disorder (DCD) and controls matched on age were tested on a linear positioning aiming task to determine the physical stimulus-psychological response relationship in kinesthenic processing. Specifically, this in...
Children with developmental coordination disorder (DCD) and controls matched on age were tested on a linear positioning aiming task to determine the physical stimulus-psychological response relationship in kinesthenic processing. Specifically, this investigation attempted to quantify the ability and to discover a possible explanation for perceptual continua in psychophysics of kinesthesis which have been described by a prothetic or metathetic continuum. Twelve right-handed elementary school-aged students and 12 right-handed matched students with DCD were required to make distinctions of location movements. They moved their right arm to three criterion locations on a linear positioning device while blindfolded. Seven standard comparison combinations were presented randomly over 20 blocks equaling a total of 140 trials for location movements. The method of constant stimuli was utilized to determine the point of subjective equality, just noticeable difference, constant error, and Weber ratio. The results were discussed in terms of the theoretical constructs as well as the effects of DCD on kinesthetic processing.