title: Talking and driving: applications of crossmodal action reveal a special role for spatial language.
abstract: Talking reduces attention resulting in real-world crash risks to drivers that talk on a phone and drive. Driving is a behavior that is very demanding on spatial attention, suggesting potentially large interference by spatial codes in language. The current study investigated how different types of verbal codes influence visual attention during dual-task performance. In two experiments, participants performed a spatial or non-spatial verbal task while simultaneously performing a visual attention task. The results showed a larger decrement to visual attention performance when participants were concurrently engaged in a spatial verbal task. The results of the second experiment isolated this effect to the right cerebral hemisphere, consistent with a role for shared right parietal resources. These results are consistent with the idea that processing codes are an important component of coordinating talking and driving but generally inconsistent with a broad class of bottleneck approaches that describes dual-task decrements but treats component tasks as cognitively equivalent.
authors.affiliation: Department of Psychology, University of Kansas, 1415 Jayhawk Blvd, Lawrence, KS 66045, USA. patchley@ku.edu
authors.forename: Paul
authors.initials: P
authors.lastname: Atchley
authors.forename: Jeff
authors.initials: J
authors.lastname: Dressel
authors.forename: Todd C
authors.initials: TC
authors.lastname: Jones
authors.forename: Rebecca A
authors.initials: RA
authors.lastname: Burson
authors.forename: David
authors.initials: D
authors.lastname: Marshall
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D001288:Attention; D001307:Auditory Perception; D001334:Automobile Driving / Q000523:psychology*; D003118:Color Perception; D006801:Humans; D010775:Photic Stimulation; D011597:Psychomotor Performance; D011930:Reaction Time; D013060:Speech; D014796:Visual Perception; D055815:Young Adult