Results 41 to 50 of about 69,407 (376)

Association of saccade duration and saccade acceleration/deceleration asymmetry during visually guided saccade in schizophrenia patients. [PDF]

open access: yesPLoS ONE, 2014
OBJECTIVE: To examine the difference between schizophrenia patients and normal controls on velocity and acceleration of saccade, by using the basic visually guided saccade (VGS) paradigm.
Hong Cui   +5 more
doaj   +1 more source

Saccades and drifts differentially modulate neuronal activity in V1: Effects of retinal image motion, position, and extraretinal influences [PDF]

open access: yes, 2008
In natural vision, continuously changing input is generated by fast saccadic eye movements and slow drifts. We analyzed effects of fixational saccades, voluntary saccades, and drifts on the activity of macaque V1 neurons.
Gur, Moshe   +2 more
core   +1 more source

Detection of stimulus displacements across saccades is capacity-limited and biased in favor of the saccade target

open access: yesFrontiers in Systems Neuroscience, 2015
Retinal image displacements caused by saccadic eye movements are generally unnoticed. Recent theories have proposed that perceptual stability across saccades depends on a local evaluation process centered on the saccade target object rather than on ...
David E. Irwin, Maria M. Robinson
doaj   +1 more source

Bilateral increase in MEG planar gradients prior to saccade onset

open access: yesScientific Reports, 2023
Every time we move our eyes, the retinal locations of objects change. To distinguish the changes caused by eye movements from actual external motion of the objects, the visual system is thought to anticipate the consequences of eye movements (saccades ...
Jasper H. Fabius   +4 more
doaj   +1 more source

Distinctive visual tasks for characterizing mild cognitive impairment and dementia using oculomotor behavior

open access: yesFrontiers in Aging Neuroscience, 2023
IntroductionOne’s eye movement (in response to visual tasks) provides a unique window into the cognitive processes and higher-order cognitive functions that become adversely affected in cases with cognitive decline, such as those mild cognitive ...
Dharma Rane   +5 more
doaj   +1 more source

Visual stimulation of saccades in magnetically tethered Drosophila [PDF]

open access: yes, 2006
Flying fruit flies, Drosophila melanogaster, perform `body saccades', in which they change heading by about 90° in roughly 70 ms. In free flight, visual expansion can evoke saccades, and saccade-like turns are triggered by similar stimuli in tethered ...
Bender, John A., Dickinson, Michael H.
core   +1 more source

Saccadic suppression of displacement in face of saccade adaptation

open access: yesVision Research, 2011
Saccades challenge visual perception since they induce large shifts of the image on the retina. Nevertheless, we perceive the outer world as being stable. The saccadic system also can rapidly adapt to changes in the environment (saccadic adaptation). In such case, a dissociation is introduced between a driving visual signal (the original saccade target)
Steffen Klingenhoefer, Frank Bremmer
openaire   +3 more sources

Visual attention is not deployed at the endpoint of averaging saccades.

open access: yesPLoS Biology, 2018
The premotor theory of attention postulates that spatial attention arises from the activation of saccade areas and that the deployment of attention is the consequence of motor programming.
Luca Wollenberg   +2 more
doaj   +1 more source

EEG-Based Quantification of Cortical Current Density and Dynamic Causal Connectivity Generalized across Subjects Performing BCI-Monitored Cognitive Tasks. [PDF]

open access: yes, 2017
Quantification of dynamic causal interactions among brain regions constitutes an important component of conducting research and developing applications in experimental and translational neuroscience.
Cauwenberghs, Gert   +4 more
core   +1 more source

There is no attentional global effect: Attentional shifts are independent of the saccade endpoint.

open access: yesJournal of Vision, 2015
Many studies have found a strong coupling between selective attention and eye movements. The premotor theory of attention suggests that saccade preparation is directly responsible for such attentional shifts.
S. Van der Stigchel, J. D. de Vries
semanticscholar   +1 more source

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