Rationale and Objectives Healthy aging is associated with pervasive declines in cognitive,
motor, and sensory functioning. There are, however, substantial individual differences in …

Background: The detailed extent of neuroinvasion or deleterious brain changes resulting
from COVID-19 and their time courses remain to be determined in relation to “long-haul” …

The world's population is aging at an increasing rate. Even in the absence of
neurodegenerative disorders, healthy aging affects perception and cognition. In the context …

The human visual system groups local elements into global objects seemingly without effort.
Using a contour integration task and EEG source level analyses, we tested the hypothesis …

Contour Integration (CI) is the ability to integrate elemental features into objects and is a
basic visual process essential for object perception and recognition, and for functioning in …

The visual processing of complex motion is impaired in Alzheimer's disease (AD). However,
it is unclear whether these impairments are biased toward the motion stream or part of a …

Contrary to popular lore, optimal visual acuity is typically better than 20/20. Could correcting
acuity beyond 20/20 offer any benefit? An affirmative answer could present new confounds …

Visual search is to find targets while ignoring distractors. Previous studies established that a
target is more difficult to identify if aligned collinearly with other items, called the collinear …

We investigated figure segregation in the intact visual field (VF) of hemianopia patients.
Three patients and matched controls performed a Yes–No figure detection task, where …

Symmetry perception studies have generally used two stimulus types: figural and dot
patterns. Here, we designed a novel figural stimulus—a wedge pattern—made of centrally …