Interaction of Perception and Action in Discrete and Continuous Rapid Aiming Tasks

Previously, we have shown that discrete and continuous rapid aiming tasks are governed by distinct visuomotor control mechanisms by assessing the combined visual illusion effects on the perceived and effective index of difficulty (ID). All participants were perceptually biased by the combined visual illusion before they performed the rapid aiming tasks. In the current study, the authors manipulated the order of performing perceptual and motor tasks to examine whether perceptual or motor experience with the illusory visual target would influence the subsequent perceived and effective ID in discrete and continuous tapping tasks. The results supported our hypothesis showing that perceptual experience with the illusory visual target in the discrete condition reduced the effective ID in the subsequent discrete tapping task, and motor experience with the illusory visual target in the continuous condition reduced the illusion effects on the perceived ID in the subsequent perceptual judgment task. The study demonstrates the coinfluence of perception and action, and suggests that perception and action influence one another with different magnitude depending on the spatial frame of reference used to perform the perceptuomotor task.     

Do Perceptual Instructions Lead to Enhanced Performance Relative to Behavioral Instructions?

As people we commonly instruct people in terms of physical actions to carry out to perform any task. However, according to perceptual control theory (Powers, 1973 Powers, W. T. (1973). Behavior: The control of perception. Chicago, IL: Aldine. [Google Scholar]), human action serves to control perception. Using a drawing task, it was hypothesized that instructions describing the perceivable effects of the movement would result in greater accuracy of image drawing than those describing the movement. Participants were asked to draw images using different instructions; describing the expected perceptions and describing the movements. As predicted, it was found that describing the perceptual outcome of the task led to significantly more accurate drawings than describing the movements did. This highlights the importance of instructions based on desired perceptions when precise execution of a skill is necessary.     

L’attitude défaitiste des responsables d’équipe : un frein à l’innovation?

The goal of this study is to investigate the role of defeatist attitude in regard to process innovation by considering the mediating role of group potency and the moderating effect of collective autonomy. Data was gathered from 101 work teams (381 members and 101 immediate supervisors) in a public safety organization located in Canada. Results show that group potency may have a mediating role in the relationship between defeatist attitude and process innovation. Moreover, results indicate that the relationship between group potency and process innovation is moderated by collective autonomy, such that this relationship is stronger when the level of collective autonomy is high.