Abstract
The haptic subsystem of dynamic touch is sensitive to the relation between a held object's distribution of mass and the object's affordances. In four experiments participants used dynamic touch to gauge the suitability of differently weighted hockey sticks for performing power (transferring maximal force) and precision (intercepting a moving object) actions. Results showed that perceivers could use dynamic touch to perceive the affordances of the hockey sticks. Perceptual sensitivity to action-relevant object properties was modified when novice participants were given the opportunity to discover subtle task constraints by actually performing the hockey tasks. Expert (collegiate-level) hockey players' ratings reflected attunement to the constraints that prompted changes in novices' responses.
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