Alcohol intoxication does not increase the temporal processing interval for the perception of depth from motion parallax

Lauer, Shanda; Nawrot, Mark

doi:10.1167/15.12.1388

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mechanisms of MP integration in younger adults have been well-described in previous studies (see Lauer & Nawrot, 2015; Nawrot & Stroyan, 2012); therefore, the focus of the current experiment was on describing MP processes in older adults. As such, a greater number of older adults than younger adults participated in the current study.…”

Section: Methodsmentioning

confidence: 98%

Aging does not affect integration times for the perception of depth from motion parallax

Holmin

Nawrot

2017

Vision Research

Self Cite

View full text Add to dashboard Cite

To successfully navigate throughout the world, observers must rapidly recover depth information. One depth cue that is especially important for a moving observer is motion parallax. To perceive unambiguous depth from motion parallax, the visual system must integrate information from two different proximal signals, retinal image motion and a pursuit eye movement. Previous research has shown that aging affects both of these necessary components for motion parallax depth perception, but no research has yet investigated how aging affects the mechanism for integrating motion and pursuit information to recover depth from motion parallax. The goal of the current experiment was to assess the integration time required by older adults to process depth information. In four psychophysical conditions, younger and older observers made motion and depth judgments about stationary or translating random-dot stimuli. Stimulus presentations in all four psychophysical conditions were followed by a high-contrast pattern mask, and minimum stimulus presentation durations (stimulus-to-mask onset asynchrony, or SOA) were measured. These SOAs reflect the minimum neural processing time required to make motion and motion parallax depth judgments. Pursuit latency was also measured. The results revealed that, after accounting for age-related delays in motion processing and pursuit onset, older and younger adults required similar temporal intervals to combine retinal image motion with an internal pursuit signal for the perception of depth. These results suggest that the mechanism for motion and pursuit integration is not affected by age.

show abstract

Section: Methodsmentioning

confidence: 98%