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Cognitive and psychomotor function in hypoglycemia: response error patterns and retest reliability

Schachinger, Hartmut and Cox, Daniel and Linder, Lilly and Brody, Stuart and Keller, Ulrich. (2003) Cognitive and psychomotor function in hypoglycemia: response error patterns and retest reliability. Pharmacology, biochemistry and behavior, Vol. 75, H. 4. pp. 915-920.

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Official URL: http://edoc.unibas.ch/dok/A6419953

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Abstract

Hypoglycemia has been shown to impair cognitive and psychomotor function, but it has been unclear which measures are most reliable and sensitive for detecting these effects. In a single-blind repeated measures design, healthy young adults (N=17, 8 male, mean age 27 years) performed three PC-based cognitive and psychomotor function tests: a paced auditory serial addition task (PASAT), an adaptive five-choice reaction time test (CRTT), and a manual tracking test on two occasions 4 weeks apart. In each session, a hyperinsulinemic clamp method was used during a normoglycemic (plasma glucose: 4.7 mmol/l) baseline testing period, followed in one session by a normoglycemic target testing period, and in the other session by a hypoglycemic (2.7 mmol/l) target testing period. All cognitive and psychomotor function measures showed high test-retest reliability (r ranging from.69 to.95) and sensitivity to hypoglycemia (Ptextless.01). A new finding is that on the PASAT, hypoglycemia appears to differentially increase the rate of omission errors more than it increases false responses. Data on PASAT reaction time (RT) are also presented.
Faculties and Departments:03 Faculty of Medicine > Departement Biomedizin > Former Units at DBM > Metabolism (Keller/Müller)
03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Ehemalige Einheiten Medizinische Fächer (Klinik) > Klinische Endokrinologie (Keller)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Ehemalige Einheiten Medizinische Fächer (Klinik) > Klinische Endokrinologie (Keller)
UniBasel Contributors:Keller, Ulrich O.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Ankho
ISSN:0091-3057
Note:Publication type according to Uni Basel Research Database: Journal article
Last Modified:02 Oct 2015 10:00
Deposited On:02 Oct 2015 10:00

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