title: An investigation of the neural correlates of attention and effector switching using ERPs.
abstract: Event-related brain potentials (ERPs) were used to examine the neural correlates of attention and effector switching when one or both types of switches were performed on a given trial. The response time data revealed that switch costs tended to increase from attention switches to effector switches to attention+effector switches. For right-hand responses, attention switching was associated with a parietal slow wave and effector switching was associated with a central readiness potential. For left-hand responses, attention switching was associated with a parietal slow wave, and effector switching was associated with a parietal slow wave and a readiness potential. These data suggest that the independence of the neural systems supporting attention and effector switching may be limited to instances where the dominant hemisphere controls the response.
authors.affiliation: Department of Psychology, Iowa State University, Ames, Iowa 50011, USA. rwest@iastate.edu
authors.forename: Robert
authors.initials: R
authors.lastname: West
authors.forename: Kira
authors.initials: K
authors.lastname: Bailey
authors.forename: Moses M
authors.initials: MM
authors.lastname: Langley
mesh_terms: D000223:Adaptation, Psychological / Q000502:physiology*; D000293:Adolescent; D000704:Analysis of Variance; D001288:Attention / Q000502:physiology*; D002540:Cerebral Cortex / Q000502:physiology*; D004192:Discrimination, Psychological / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D005364:Field Dependence-Independence; D006801:Humans; D007266:Inhibition, Psychological; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D012016:Reference Values; D055815:Young Adult