title: The contributions of vision and haptics to reaching and grasping.
abstract: This review aims to provide a comprehensive outlook on the sensory (visual and haptic) contributions to reaching and grasping. The focus is on studies in developing children, normal, and neuropsychological populations, and in sensory-deprived individuals. Studies have suggested a right-hand/left-hemisphere specialization for visually guided grasping and a left-hand/right-hemisphere specialization for haptically guided object recognition. This poses the interesting possibility that when vision is not available and grasping relies heavily on the haptic system, there is an advantage to use the left hand. We review the evidence for this possibility and dissect the unique contributions of the visual and haptic systems to grasping. We ultimately discuss how the integration of these two sensory modalities shape hand preference.
authors.affiliation: The Brain in Action Laboratory, Department of Kinesiology, University of Lethbridge, Lethbridge AB, Canada.
authors.forename: Kayla D
authors.initials: KD
authors.lastname: Stone
authors.affiliation: The Brain in Action Laboratory, Department of Kinesiology, University of Lethbridge, Lethbridge AB, Canada.
authors.forename: Claudia L R
authors.initials: CL
authors.lastname: Gonzalez
keywords: development; hand preference; handedness; haptically guided; haptics; sensorimotor integration; sensory deprivation; visually guided