A foveal target increases catch-up saccade frequency during smooth pursuit

SJ Heinen, E Potapchuk… - Journal of …, 2016 - journals.physiology.org
Images that move rapidly across the retina of the human eye blur because the retina has
sluggish temporal dynamics. Voluntary smooth pursuit eye movements are modeled as …

[HTML][HTML] Smooth pursuit eye movements in patients with macular degeneration

N Shanidze, G Fusco, E Potapchuk, S Heinen… - Journal of …, 2016 - iovs.arvojournals.org
Currently, there are no quantitative studies of smooth pursuit, a behavior attributed to the
fovea, in individuals with macular degeneration (MD). We hypothesize that pursuit in MD …

[HTML][HTML] Different time scales of motion integration for anticipatory smooth pursuit and perceptual adaptation

GW Maus, E Potapchuk, SNJ Watamaniuk… - Journal of …, 2015 - iovs.arvojournals.org
When repeatedly exposed to moving stimuli, the oculomotor system elicits anticipatory smooth
pursuit (ASP) eye movements, even before the stimulus moves. ASP is affected oppositely …

Motion integration for ocular pursuit does not hinder perceptual segregation of moving objects

…, SNJ Watamaniuk, AZ Khan, E Potapchuk… - Journal of …, 2014 - Soc Neuroscience
When confronted with a complex moving stimulus, the brain can integrate local element
velocities to obtain a single motion signal, or segregate the elements to maintain awareness of …

Small foveal stimuli render smooth pursuit less smooth

S Heinen, E Potapchuk, S Watamaniuk - Journal of Vision, 2014 - jov.arvojournals.org
Smooth pursuit eye movements follow moving objects to prevent retinal image blurring. While
modeled as motion-driven, the pursuit system is studied with a weak and unnatural motion …

Catch-up saccades during pursuit correct position error with the help of attention

S Heinen, E Potapchuk, S Watamaniuk - Journal of Vision, 2016 - jov.arvojournals.org
Previously, we showed that more catch-up saccades occur when a pursuit stimulus has a
central target than when it does not, and attending to the central target further increases …

[PDF][PDF] Attentively segregated moving elements are effortlessly integrated to drive pursuit

S Watamaniuk, Z Jin, E Potapchuk, S Heinen - Journal of Vision, 2013 - academia.edu
Figure 2. a) Representative averaged pursuit traces for observer MU for a 10-dot stimulus,
without an MOT task, with and without a translating pursuit target (cross). b) Steady-state gain …

Foveal attention augments catch-up saccade frequency during smooth pursuit

S Heinen, E Potapchuk, S Watamaniuk - Journal of Vision, 2015 - jov.arvojournals.org
Previously, we showed that foveal stimuli increase catch-up saccade frequency during
smooth pursuit, presumably because a salient foveal spot activates a position correction …

Evaluation of Smooth Pursuit in Individuals with Central Field Loss

N Shanidze, E Potapchuk, S Heinen, P Verghese - researchgate.net
Introduction Methods Summary & Conclusions Page 1 Introduction • Smooth pursuit eye
movements are traditionally tied to the fovea. • Little is known about pursuit with central field …

Smooth pursuit go circuitry is affected by priming, nogo circuitry by cognitive expectation

S Heinen, E Potapchuk, S Watamaniuk - Journal of Vision, 2013 - jov.arvojournals.org
Reaction time decreases during target selection if the target appears repeatedly in the same
location. This phenomenon is known as priming, and is thought to occur because of a low-…