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pro vyhledávání: '"Frederick R. Keller"'
Autor:
Kelli J. Klebe, Simeon N. Feldstein, Hasker P. Davis, Frederick R. Keller, Robert L. Durham, Rebecca E. Portman
Publikováno v:
The Clinical Neuropsychologist. 13:303-313
The manual version of the Wisconsin Card Sorting Test (WCST) is the most frequently used neuropsychological instrument for differentiating normal from populations with frontal-lobe impairments. A number of computerized versions have become available,
Autor:
Frederick R. Keller, Richard F. Smith
Publikováno v:
Journal of the Experimental Analysis of Behavior. 13:211-214
A free-operant avoidance schedule was used to establish and maintain foot-treadle responding by two Homing, one White King, and two Carneaux pigeons. In the absence of responding, the interval between shocks equaled 10 sec. Each time a treadle respon
Autor:
Yaakov Stern, Hasker P. Davis, Frederick R. Keller, Richard Mayeux, Scott A. Small, Simeon N Feldstein
Publikováno v:
Scopus-Elsevier
Memory performance by four age groups (30-45 years, 46-60 years, 61-75 years, and 76-90 years) was compared on a multi-trial verbal recall task with 20-minute and 1-day delay free recall and recognition trials. The rate of acquisition across 5 learni
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