Abstract
Action and vision are known to be tightly coupled with each other. In a previous study, we found that repeatedly grasping an object without any visual feedback might result in a perceptual aftereffect when the object was visually presented in the context of a perceptual judgement task. In this study, we explored whether and how such an effect could be modulated by presenting the object behind a transparent barrier. Our conjecture was that if perceptual judgment relies, in part at least, on the same processes and representations as those involved in action, then one should expect to find a slowdown in judgment performance when the target object looks to be out of reach. And this was what we actually found. This indicates that not only acting upon an object but also being prevented from acting upon it can affect how the object is perceptually judged.
Highlights
IntroductionMany studies show that visual perception might affect action
Action and vision are known to be tightly coupled with each other
analysis of variance (ANOVA) on reaction time (RT) revealed a main effect of handle orientation (F (1,68) = 4.826, p = 0.031, ηp2 = 0.066): participants were slower at detecting right-handled stimuli (Log-RT: 6.34 ± 0.01) than left-handled stimuli (Log-RT: 6.32 ± 0.01)
Summary
Many studies show that visual perception might affect action. Some studies indicate that the other way around could be true as well, with action affecting visual perception We found that repeated grasping actions produced a perceptual after-effect, with participants being slower in detecting the visually presented handled mugs when their handles were oriented congruently with the grasping hand. The same effect did not occur when participants were asked to detect the visually presented mugs after repeatedly performing reach-to-touch actions (Costantini, Tommasi, and Sinigaglia 2019)
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