Role of sensory and post-sensory factors on hemispheric asymmetries in tactual perception
Abstract – It is well known that lateralization characterizes a broad range of activities in the motor (e.g., handedness), visual and auditory domains. It is much less acknowledged, however, that lateralization is also a property of tactual perception. The main goal of this chapter is thus to present and discuss this issue in detail. As several authors have questioned the robustness of tactual asymmetries in humans (e.g., Duda & O’Adams, 1987; Summers & Lederman, 1990), the main objective of this chapter is two-fold. First, we present a large but selective overview of the main findings in favor (and against) lateralization in tactual processing. Second, this chapter attempts to shed light on the respective role of sensory and post-sensory factors on the expression of tactual cerebral lateralization.
