In this study, we investigated how drivers adapt secondary-task initiation and time-sharing behavior when faced with fluctuating driving demands. Background: Reading text while driving is particularly detrimental; however, in real-world driving, drivers actively decide when to perform the task. Method: In a test track experiment, participants were free to decide when to read messages while driv...

Background: Subjects with hemispatial neglect often exhibit representational neglect: a failure to report details from the left side of mentally visualized images. This failure could reflect impaired ability to generate the left side of the mental image, or it could reflect failure to explore the left side of a normally generated mental image. When subjects with hemispatial neglect look at pict...