Perception operates on an immense amount of incoming information that greatly exceeds
the brain's processing capacity. Because of this fundamental limitation, the ability to …

Background Globally, visual impairment affects about 285 million (4.25%) people, of those,
266.4 million were adults aged 18 years and above. Ethiopia is one of developing countries …

Older adults tend to perform more poorly than younger adults on emotional expression
identification tasks. The goal of the present study was to test a processing mechanism that …

Contrast-dependent interactions between classical (CRF) and non-classical regions (nCRF)
of visual neuron receptive fields are well documented in primate visual cortex. Physiological …

Visual function in humans degrades during the early stage of senescence beginning from
middle 50s to 60s. To identify its underlying neural mechanisms, we investigated the aging …

The ability to extract contours in cluttered visual scenes, which is a crucial step in visual
processing, declines with healthy aging, but the reasons for this decline are not well …

Decisions differ in difficulty and rely on perceptual information that varies in richness
(complexity); aging affects cognitive function including decision-making, and yet, the …

We examined age-related differences in figure-ground perception by exploring the effect of
age on Convexity Context Effects (CCE; Peterson & Salvagio, 2008). Experiment 1, using …

The authors investigated the influence of spatial frequencies in foveal vision in
glaucomatous patients in a recognition task of facial expressions. Nineteen patients, 16 age …

Oculomotor functions are established surrogate measures of visual attention shifting and
rate of information processing, however, the temporal characteristics of saccades and …