The test lasted ~5 min per eye and was performed on 7 patients with cerebral visual impairment (CVI), 8 patients with primary open angle glaucoma (age >45), and 14 healthy, age/gender-matched controls. The location of the flickering disk moved along with gaze to reduce confounds of eye movements (gaze-contingent paradigm). We monocularly presented the disk at a total of 80 locations in the central visual field (max. The disk evokes continuous pupil oscillations at the same rate as its flicker frequency, and the oscillatory power of the pupil reflects visual sensitivity. Methods: The new perimetry method, termed gaze-contingent flicker pupil perimetry, consists of the repetitive on, and off flickering of a bright disk (2 hz 320 cd/m 2 4В° diameter) on a gray background (160 cd/m 2) for 4 seconds per stimulus location. We quantitatively investigated the accuracy of a novel form of pupil perimetry. However, the diagnostic accuracy in detecting scotomas has remained unclear. Pupillograph perimetry could thus be an objective measure of impaired visual processing. 7Experimental and Applied Psychology, VU University Amsterdam, Amsterdam, NetherlandsД«ackground: The pupillary light reflex is weaker for stimuli presented inside as compared to outside absolute scotomas.6Ophthalmology, University Medical Center Utrecht, Utrecht, Netherlands.5BartimГ©us Diagnostic Centre for complex visual disorders, Zeist, Netherlands.4Department of Cognitive Neuroscience, University Medical Centre St.3Institute of Neuroscience and Psychology, University of Glasgow, Glasgow, United Kingdom.2Spinoza Centre for Neuroimaging, Royal Netherlands Academy for Arts and Sciences, Amsterdam, Netherlands.1Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, Netherlands.Bergsma 4, Mies van Genderen 5, Giorgio L. Marnix Naber 1 *, Carlien Roelofzen 1,2, Alessio Fracasso 2,3, Douwe P.

Sap movement type 558