Results 311 to 320 of about 61,216 (332)

Democratic Alarmism: Coherent Notion or Contradiction in Terms?

Constellations, EarlyView.
James S. Pearson
wiley   +1 more source

High-fidelity but hypometric spatial localization of afterimages across saccades

Schweitzer R, Seel T, Raisch J, Rolfs M.
europepmc   +1 more source

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Is saccadic suppression really saccadic?

Vision Research, 1971
Abstract Visual thresholds were measured during voluntary saccades of 8° under different conditions. From the experimental data the contributions of the “smearing” and the propre suppression were evaluated. It was found that the suppression disappears when the luminance of the screen was 4 × 10 −2 nt. On the contrary, the suppression increases when
L. Mitrani, St. Mateeff, N. Yakimoff
openaire   +3 more sources

Saccadic instabilities and voluntary saccadic behaviour

Experimental Brain Research, 2005
Primary gaze fixation is never perfectly stable but can be interrupted by involuntary, conjugate saccadic intrusions (SI). SI have a high prevalence in the normal population and are characterised by a horizontal fast eye movement away from the desired eye position, followed, after a variable duration, by a return saccade or drift.
Gowen, E., Abadi, R. V.
openaire   +4 more sources

Instrumentation to stimulate gap saccades, pro-saccades, and overlap saccades

2014 40th Annual Northeast Bioengineering Conference (NEBEC), 2014
Although a great amount of research studying oculomotor function has been conducted, a full understanding of how it relates to and is affected by neurological and neurodegenerative disorders is still warranted. This experiment seeks to build a system comparing pro-saccades, gap saccades, and overlap saccadic eye movements.
Silvana L Costa, Tara L. Alvarez, Hassan Muhammad, David Thibodeaux   +3 more
openaire   +2 more sources

Saccadic Inhibition in Voluntary and Reflexive Saccades

Journal of Cognitive Neuroscience, 2002
Abstract The present study investigated saccadic inhibition in both voluntary and stimulus-elicited saccades. Two experiments examined saccadic inhibition caused by an irrelevant flash occurring subsequent to target onset. In each trial, participants were required to perform a single saccade following the presentation of a black target ...
Dave M. Stampe, Eyal M. Reingold
openaire   +3 more sources

Disorders of saccades

Current Neurology and Neuroscience Reports, 2007
Saccades are rapid eye movements that assist vision by pointing the fovea of the retina, which contains the highest density of photoreceptors, at features of interest in the visual environment. A great deal is now known about the properties and neurobiology of saccades in both health and disease states.
Robert L. Tomsak, Matthew J. Thurtell, R. John Leigh   +2 more
openaire   +3 more sources

Contextual saccade adaptation induced by sequential saccades

Journal of Neurophysiology, 2022
This study reveals a new type of contextual saccade adaptation: sequential saccades are able to induce contextual saccade adaptation when direction, amplitude, or the existence of preceding and following saccades are used as contexts. These novel findings are also consistent with the idea that saccades made in a sequence are planned concurrently ...
Reza Azadi, Robert M. McPeek
openaire   +2 more sources

Foveating saccades

Vision Research, 1990
A review of the literature revealed that foveating saccades were found to be faster than other fast eye movements (FEMs) except optokinetic nystagmus (OKN) quick phase. In the present experiment, foveating saccades were compared to OKN quick phase in humans and were found to have higher maximum speeds and shorter durations. Unlike previous experiments,
S G, Whittaker, R W, Cummings
openaire   +2 more sources