Driving performance during word generation-Testing the function of human brain lateralization using fTCD in an ecologically relevant context

Autor: P. C. Van Wolffelaar, Jessica M. Lust, Anke Bouma, Antonius Groothuis, J. Van Der Zwan, Reint H. Geuze, Wiebo Brouwer
Přispěvatelé: Clinical Neuropsychology, Groothuis lab, Clinical Psychology and Experimental Psychopathology, Heymans Institute for Psychological Research
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Male
Elementary cognitive task
Automobile Driving
Ultrasonography
Doppler
Transcranial
Cognitive Neuroscience
Poison control
Experimental and Cognitive Psychology
Context (language use)
Driving simulator
behavioral disciplines and activities
DISADVANTAGES
Lateralization of brain function
Functional Laterality
Task (project management)
Behavioral Neuroscience
Young Adult
Reference Values
Parallel processing
Humans
Attention
Effects of sleep deprivation on cognitive performance
SPECIALIZATION
Problem Solving
Language
Functional transcranial Doppler ultrasonography
Brain Mapping
Verbal Behavior
Laterality
TRANSCRANIAL DOPPLER SONOGRAPHY
Neuropsychology
HEMISPHERIC LANGUAGE LATERALIZATION
EVOLUTIONARY ORIGINS
Dual-task performance
ADVANTAGES
DOMINANCE
ASYMMETRY
CEREBRAL-BLOOD-FLOW
Female
COGNITIVE TASKS
Psychology
Perceptual Masking
psychological phenomena and processes
Psychomotor Performance
Cognitive psychology
Zdroj: Neuropsychologia, 49(9), 2375-2383. PERGAMON-ELSEVIER SCIENCE LTD
ISSN: 0028-3932
Popis: It has been hypothesized that cerebral lateralization of function enhances cognitive performance. Evidence was found in birds and fish. However, recent research in humans did not support this hypothesis. We aimed to replicate and extend these findings for single- and dual-task performance in\ an ecologically relevant task. We combined a word generation task which is assumed to be primarily processed in the left hemisphere with a driving task which is assumed to be primarily processed in the right hemisphere. For each task the individual strength and direction of hemispheric lateralization was assessed by using functional transcranial Doppler sonography (fTCD). For each subject (36 right-handed, 35 nonright-handed) performance was measured in the two single-tasks and in the dual-task condition. On average, subjects showed a left hemisphere bias for the word generation task, a right hemisphere bias for the driving task and dual-task interference. Within subjects, lateralization of language and driving were statistically independent.In accordance with earlier studies, the results show no indication of a positive effect of strength of lateralization on performance in single-tasks or dual-task efficiency. We also found no advantage of a typical compared to an atypical or a contralateral compared to an ipsilateral lateralization pattern. In right-handers, but not in nonright-handers, we even found a negative relationship between strength of lateralization and dual-task efficiency for atypically lateralized subjects. This further supports the suggestion that lateralization does not enhance cognitive performance in humans. (C) 2011 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE
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