Evidence for a common mechanism of spatial attention and visual awareness: Towards construct validity of pseudoneglect.

ABSTRACT: Present knowledge of attention and awareness centres on deficits in patients with right brain damage who show severe forms of inattention to the left, called spatial neglect. Yet the functions that are lost in neglect are poorly understood. In healthy people, they might produce "pseudoneglect"-subtle biases to the left found in various tests that could complement the leftward deficits in neglect. But pseudoneglect measures are poorly correlated. Thus, it is unclear whether they reflect anything but distinct surface features of the tests. To probe for a common mechanism, here we asked whether visual noise, known to increase leftward biases in the grating-scales task, has comparable effects on other measures of pseudoneglect. We measured biases using three perceptual tasks that require judgm

SUBMITTER: Chen J 

PROVIDER: S-EPMC6405131 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature