… Toet & Levi found that, on average, crowding extends from about 0.1× the target eccentricity
in the tangential direction to ≈0.5× the target eccentricity in the radial direction. There is also …

… Levi concluded that ‘Crowding is an enigma wrapped in a paradox and shrouded in a
conundrum. Despite a great deal of new (and old) work, we do not yet have a full understanding of …

Theory and research on perception and cognition, including visual, auditory and tactile
perception, representation, and communication. Topics include cognition and perception in the …

… dimension (Klein and Levi. 1985). The left hand “reference” line was presented continuously.
… These results are somewhat analogous to our finding in strabismic amblyopes (Levi and …

The spatial analysis of a target may be strongly degraded by the simultaneous presentation
of nearby pattern elements. The present study investigated the shape and extent of the …

Adult brain plasticity, although possible, remains more restricted in scope than during
development. Here, we address conditions under which circuit rewiring may be facilitated in the …

… were nearly proportional to the deficit in grating acuity (Levi & Klein 1982a, 1982b, l985).
In … and strabismics, following the pattern of the Levi and Klein studies. However, among the …

… ), the extent of the spatial interaction ranged from almost 4 deg to about 7 deg, with a mean
value of 5.7 deg, equal to about half of the 10 deg eccentricity of the target (Toet and Levi, …

… All but one (DM) had a great deal of prior experience in forced-choice hyperacuity
experiments. One observer (JS) had extensive psychophysical experience in several other …

… For example, Li & Levi asked seven amblyopic patients to practice a positional
discrimination task and they seemed to have reached the plateau level and showed a modest …