The Cleveland Sorting Test: a preliminary study of an alternate form of the Wisconsin Card-Sorting Test.

During the past two decades, studies have repeatedly shown that the Wisconsin Card-Sorting Test (WCST) is not as sensitive to prefrontal-lobe functioning as was originally suspected. Specifically, both clinical and brain-imaging studies have shown that several distinct neural circuits contribute to one's ability to successfully complete different aspects of the test. Another limitation of the WCST is its length, which makes it difficult and frustrating for certain clinical populations.