Aging and Alzheimer's disease (AD) are associated with declines in the visual perception of
self-movement that undermine navigation and independent living. We studied 214 subjects' …

The perception and control of self-movement relies on visual cues derived from the radial
patterns of optic flow and from the relative motion of objects within view. Optic flow and …

Similar manifestations of functional decline in ageing and Alzheimer's disease obscure
differences in the underlying cognitive mechanisms of impairment. We sought to examine …

Aging and Alzheimer's disease (AD) are accompanied by impairments of autonomous
navigation and spatial orientation that commonly demand the abandonment of driving and …

Background: Aging and Alzheimer's disease (AD) disrupt visuospatial processing and visual
motion evoked potentials in a manner linked to navigational deficits. Objective: Our goal is to …

We assessed visual processing related to navigational impairment in Alzheimer's disease
hypothesizing that visual motion evoked responses to optic flow simulating observer self …

Impaired optic flow perception may contribute to the visuospatial disorientation of
Alzheimer's disease (AD). We find that 36% of AD patients have elevated perceptual …

While the percentage of older people in our society is steadily increasing, knowledge about
perceptual changes during healthy aging is still limited. We investigated age effects on …

We used a random-dot two-frame apparent motion paradigm to investigate whether age-
related declines in motion perception are caused by deficits in integrating spatial …

Navigation requires real-time heading estimation based-on self-movement cues from optic
flow and object motion. We presented a simulated heading discrimination task to young …