Journal
NEUROPSYCHOLOGY REVIEW
Volume 10, Issue 4, Pages 213-231Publisher
CONSULTANTS BUREAU
DOI: 10.1023/A:1026412811036
Keywords
functional transcranial Doppler ultrasonography; blood flow velocity; laterality; brain activity; neuropsychology
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The examination of blood flow velocity (BFV) changes during the performance of mental tasks is one of the applications of transcranial Doppler (TCD) ultrasonography. The purpose of this review is to summarize the results of the functional TCD literature, to investigate the effects of methodological differences between studies, and to provide guidelines for future research. It is concluded that larger series of more homogeneous groups concerning age and handedness, and stricter criteria for subject selection and laboratory setting are required. The implication of quantitative and qualitative performance measures and psychological parameters (motivation, anxiety, and task anticipation) could also yield important information. We recommend future agreement upon a more standardized methodology. TCD promises to he a useful tool to provide further insight into the cerebral organization and temporal reactivity of the human brain.
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