The Kohs blocks are a tool used in neuropsychological assessments to measure visuospatial skills, motor coordination, and non-verbal reasoning. By reproducing geometric patterns using cubes, they help evaluate cognitive functions such as visual perception, spatial organization, and planning ability.

The Kohs blocks are used by presenting the individual with a series of cards that display different geometric patterns. The task is to replicate each pattern using the colored cubes, which have different color arrangements on their faces. The complexity of the designs increases progressively, and the examiner observes the time taken, the accuracy of the reproductions, and the strategies used by the person during the task.

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