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Moreno-Martinez, F. Javier; Goni-Imizcoz, Miguel; Spitznagel, Mary Beth – Brain and Cognition, 2011
Category specific semantic impairment (e.g. living versus nonliving things) has been reported in association with various pathologies, including herpes simplex encephalitis and semantic dementia. However, evidence is inconsistent regarding whether this effect exists in diseases progressively impacting diverse cortical regions, such as Alzheimer's…
Descriptors: Correlation, Longitudinal Studies, Semantics, Alzheimers Disease
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Berg, W. Keith; Byrd, Dana L.; McNamara, Joseph P. H.; Case, Kimberly – Brain and Cognition, 2010
The Tower of London (TOL) task has been widely used in both clinical and research realms. In the current study, 104 healthy participants attempted all possible moderate- to high-difficulty TOL problems in order to determine: (1) optimal measures of problem solving performance, (2) problem characteristics, other than the minimum moves necessary to…
Descriptors: Problem Solving, Factor Analysis, Performance Factors, Task Analysis