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The Leuven Perceptual Organization Screening Test (L-POST), an online test to assess mid-level visual perception
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The Leuven Perceptual Organization Screening Test (L-POST), an online test to assess mid-level visual perception
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Journal Article
The Leuven Perceptual Organization Screening Test (L-POST), an online test to assess mid-level visual perception
2014
Overview
Neuropsychological diagnostic tests of visual perception mostly assess high-level processes like object recognition. Object recognition, however, relies on distinct mid-level processes of perceptual organization that are only implicitly tested in classical tests. The Leuven Perceptual Organization Screening Test (L-POST) fills a gap with respect to clinically oriented tests of mid-level visual function. In 15 online subtests, a range of mid-level processes are covered, such as figure–ground segmentation, local and global processing, and shape perception. We also test the sensitivity to a wide variety of perceptual grouping cues, like common fate, collinearity, proximity, and closure. To reduce cognitive load, a matching-to-sample task is used for all subtests. Our online test can be administered in 20–45 min and is freely available at
www.gestaltrevision.be/tests
. The online implementation enables us to offer a separate interface for researchers and clinicians to have immediate access to the raw and summary results for each patient and to keep a record of their patient’s entire data. Also, each patient’s results can be flexibly compared with a range of age-matched norm samples. In conclusion, the L-POST is a valuable screening test for perceptual organization. The test allows clinicians to screen for deficits in visual perception and enables researchers to get a broader overview of mid-level visual processes that are preserved or disrupted in a given patient.
Publisher
Springer US,Springer Nature B.V
Subject
/ Adult
/ Autism
/ Behavioral Science and Psychology
/ Brain
/ Closure
/ Cues
/ Diagnosis, Computer-Assisted
/ Discrimination (Psychology) - physiology
/ Female
/ Figural Aftereffect - physiology
/ Humans
/ Internet
/ Intracranial Aneurysm - diagnosis
/ Intracranial Aneurysm - physiopathology
/ Male
/ Mass Screening - instrumentation
/ Motion Perception - physiology
/ Patients
/ Pattern Recognition, Physiological - physiology
/ Perceptual Closure - physiology
/ Tests
