Results 11 to 20 of about 36,989 (289)

Effect of Saccadic Adaptation on Sequences of Saccades

open access: yesJournal of Eye Movement Research, 2012
Accuracy of saccadic eye movements is maintained thanks to adaptation mechanisms. The adaptive lengthening and shortening of reactive and voluntary saccades rely on partially separate neural substrates.
Muriel Panouillères   +3 more
doaj   +4 more sources

A Vertical Asymmetry in Saccades [PDF]

open access: yesJournal of Eye Movement Research, 2015
Visual exploration of natural scenes imposes demands that differ between the upper and the lower visual hemifield. Yet little is known about how ocular motor performance is affected by the location of visual stimuli or the direction of a behavioural ...
Mathias Abegg   +2 more
doaj   +3 more sources

High-field FMRI reveals brain activation patterns underlying saccade execution in the human superior colliculus. [PDF]

open access: yesPLoS ONE, 2010
The superior colliculus (SC) has been shown to play a crucial role in the initiation and coordination of eye- and head-movements. The knowledge about the function of this structure is mainly based on single-unit recordings in animals with relatively few ...
Ruth M Krebs   +10 more
doaj   +3 more sources

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 ...
Hongmei Yan, Hao Zhang
doaj   +2 more sources

Saccades in the absence of binocular vision [PDF]

open access: yes, 2003
The mechanism of suppression in strabismus is unclear and contribution of the suppressing eye to the generation of eye movements has received little attention.
Griffiths, Helen Jane
core   +6 more sources

Global Rather Than Vertical-Selective Saccadic Abnormalities in Progressive Supranuclear Palsy. [PDF]

open access: yesAnn Clin Transl Neurol
ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Nguyen DD   +6 more
europepmc   +2 more sources

Saccades

open access: yes, 2022
Saccades: instruct the patient to make rapid movements of their eyes in each gaze direction, noting the speed, conjugacy, latency, and accuracy. First have the patient look between an eccentric target and the camera horizontally and vertically, making ...
Olwen Murphy, MD; Daniel R. Gold, DO
openaire   +2 more sources

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 ...
Dmitri Alekseevsky, I. M. Shirokov
openaire   +3 more sources

Dopamine and impairment at the executive level. [PDF]

open access: yes, 1999
Patients with schizophrenia have an impairment in the inhibition of reflexive saccades, as a consequence of a functional impairment of the prefrontal cortex, which has not yet been encapsulated in terms of a formal model.
Broerse, Annelies   +5 more
core   +4 more sources

Sports athletes use predictive saccades! But why? [PDF]

open access: yes, 2021
In sports, high-level athletes are able to predict the actions of an opposing player. Interestingly, such predictions are also reflected by the athlete’s gaze behaviour. In cricket, for example, a bowler bowls the ball in the direction of a batsman.
Vater, Christian
core   +5 more sources

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