Results 11 to 20 of about 68,968 (381)

The programming of sequences of saccades [PDF]

open access: yesExperimental Brain Research, 2019
Saccadic eye movements move the high-resolution fovea to point at regions of interest. Saccades can only be generated serially (i.e., one at a time). However, what remains unclear is the extent to which saccades are programmed in parallel (i.e., a series of such moments can be planned together) and how far ahead such planning occurs.
Eugene McSorley   +2 more
openaire   +11 more sources

Saccadic suppression in schizophrenia [PDF]

open access: yesScientific Reports, 2021
About 40% of schizophrenia patients report discrete visual disturbances which could occur if saccadic suppression, the decrease of visual sensitivity around saccade onset, is impaired.
Rebekka Lencer   +5 more
doaj   +6 more sources

Suppression of displacement in severely slowed saccades [PDF]

open access: green, 2000
Severely slowed saccades in spinocerebellar ataxia have previously been shown to be at least partially closed-loop in nature: their long duration means that they can be modified in-flight in response to intrasaccadic target movements.
Michael R. MacAskill   +2 more
openalex   +3 more sources

The parallel programming of landing position in saccadic eye movement sequences [PDF]

open access: yes, 2020
Saccadic eye movements occur in sequences, gathering new information about the visual environment to support successful task completion. Here we examine the control of these saccadic sequences and specifically the extent to which the spatial aspects of ...
Gilchrist, Iain D.   +2 more
core   +2 more sources

Dissociable roles of human frontal eye fields and early visual cortex in presaccadic attention

open access: yesNature Communications, 2023
Shortly before saccadic eye movements, visual sensitivity at the saccade target is enhanced, at the expense of sensitivity elsewhere. Some behavioral and neural correlates of this presaccadic shift of attention resemble those of covert attention ...
Nina M. Hanning   +2 more
doaj   +1 more source

Geometry of saccades and saccadic cycles

open access: yes, 2023
The paper is devoted to the development of the differential geometry of saccades and saccadic cycles. We recall an interpretation of Donder's and Listing's law in terms of the Hopf fibration of the $3$-sphere over the $2$-sphere. In particular, the configuration space of the eye ball (when the head is fixed) is the 2-dimensional hemisphere $S^+_L ...
Alekseevsky, D. V., Shirokov, I. M.
openaire   +2 more sources

Visual mislocalization during double-step saccades

open access: yesFrontiers in Systems Neuroscience, 2015
Visual objects presented briefly at the time of saccade onset appear compressed toward the saccade target. Compression strength depends on the presentation of a visual saccade target signal and is strongly reduced during the second saccade of a double ...
Eckart eZimmermann
doaj   +1 more source

Regularities in vertical saccadic metrics: new insights, and future perspectives

open access: yesFrontiers in Psychology, 2023
IntroductionAsymmetries in processing by the healthy brain demonstrate regularities that facilitate the modeling of brain operations. The goal of the present study was to determine asymmetries in saccadic metrics during visual exploration, devoid of ...
Harold H. Greene   +2 more
doaj   +1 more source

Saccadic Disinhibition on the Saccade Trace

open access: yesi-Perception, 2011
It has generally thought that information from the eyes is made available during a fixation, but not during a saccade when reading. Some researchers even suggested the duration of saccades should be subtracted from the reading time in eye movement research.
Hongmei Yan, Hao Zhang
openaire   +3 more sources

Saccadic inhibition in a guided saccade task

open access: yesPeerJ, 2018
The eye movement system reacts very systematically to visual transients that are presented during the planning phase of a saccade. About 50 to 70 ms after the onset of a transient, the number of saccades that are started decreases, a phenomenon that has been termed saccadic inhibition.
Isabel Dombrowe, Isabel Dombrowe
openaire   +4 more sources

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