Wisconsin card Sorting Test. Wisconsin Card Sorting Test - an overview | ScienceDirect Topics. (n.d.). https://www.sciencedirect.com/topics/neuroscience/wisconsin-card-sorting-test. 

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This test measures the ability of an individual to develop and maintain a problem-solving strategy that shifts and adapts as the game changes. Put simply, it assesses higher cognitive functions like attention, perseverance, working memory, abstract thinking, and mental flexibility. It consists of sorting a number of cards with images on them according to different facets, and criteria randomly changes without explicit direction of the researcher. Rather, the researcher simply gives affirmative or dismissive indications. A higher score indicates worse performance. 

Wisconsin Card Sorting Task

WCST: Science Direct Overview

As shown in the figure below, the Wisconsin Card Sorting Task is extremely difficult for people who have damage to their frontal lobes. 

During this task, people who have schizophrenia have no increase in their prefrontal activation above resting levels. There are some treatments for schizophrenia which involve increasing this activation of frontal cortex. 

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