| A transcranial Doppler sonography study of shoot/don't-shoot responding. | |
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MedLine Citation:
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PMID: 19587168 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to examine the relationship between changes in cerebral blood-flow velocity and performance on a speeded shoot/don't-shoot task. Brain activity as indicated by cerebral blood-flow velocity (hemovelocity) was recorded using the transcranial Doppler ultrasonography. A shoot/don't-shoot decision-making task presented participants with threat/nonthreat stimuli in the form of bull's-eye images of various colors. Participants were required to shoot threat targets using a laser-modified handgun. Results support a vigilance decrement in both the performance measures and hemovelocity. Performance, as measured by reaction time, number of hits, and marksmanship, decreased across the length of the vigil. Hemovelocity slowed across the left and right hemispheres as the task progressed, and hemovelocity was slower in the right hemisphere than in the left hemisphere. |
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Authors:
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Natasha B Schultz; Gerald Matthews; Joel S Warm; David A Washburn |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Behavior research methods Volume: 41 ISSN: 1554-351X ISO Abbreviation: - Publication Date: 2009 Aug |
Date Detail:
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Created Date: 2009-07-09 Completed Date: 2009-10-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101244316 Medline TA: Behav Res Methods Country: United States |
Other Details:
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Languages: eng Pagination: 593-7 Citation Subset: IM |
Affiliation:
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Department of Psychology, Georgia State University, Atlanta, Georgia 30302-5010, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Arousal / physiology Blood Flow Velocity Brain / blood supply*, physiology Female Firearms Functional Laterality / physiology Humans Male Psychomotor Performance / physiology* Time Factors Ultrasonography, Doppler, Transcranial / methods* |
| Grant Support | |
ID/Acronym/Agency:
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HD 38051/HD/NICHD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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