visual form discrimination
the ability to discriminate visually between different shapes. The Visual Form Discrimination Test (VFDT), a multiple-choice, matching-to-sample test developed in the 1980s by Arthur L. Benton, assesses an individual’s ability to discriminate fine details of visual shapes and is designed to screen for visual perceptual deficits. Each of the 16 test items contains a target with three elements: two large geometric shapes and a peripheral figure. The task is to choose a correct match to the target out of four options presented below the target. Up to 2 points are awarded for responses to each of the 16 test items, with the total score for all items then compared to normative data.