Results 41 to 50 of about 26,823 (310)

Saccadic Disinhibition on the Saccade Trace

i-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   +2 more sources

Nature of Variability in Saccades [PDF]

Journal of Neurophysiology, 2003
We studied the variability in saccades by comparing the peak velocities of saccades with the same target amplitude made with different actual amplitudes. We tested three hypotheses: the pulse-height noise hypothesis (peak velocity and amplitude vary proportionally), the localization noise hypothesis (variability in amplitude and peak velocity lie ...
Smeets, J.B.J., Hooge, I.T.C.
openaire   +3 more sources

Pupil dynamics reveal preparatory processes in the generation of pro-saccades and anti-saccades in open skill sports athletes

Biology of Sport
This study investigated pupil dynamics to establish a physiological index of mental processes associated with executive functioning, enabling objective evaluation of cognitive load during training to improve understanding of cognitive control in sport ...
Jui-Tai Chen, Yi-Hsuan Chang, Cesar Barquero, Chin-An Wang   +3 more
doaj   +1 more source

Salient Distractors Can Induce Saccade Adaptation

Journal of Ophthalmology, 2014
When saccadic eye movements consistently fail to land on their intended target, saccade accuracy is maintained by gradually adapting the movement size of successive saccades. The proposed error signal for saccade adaptation has been based on the distance
Afsheen Khan, Sally A. McFadden, Mark Harwood, Josh Wallman   +3 more
doaj   +1 more source

Adaptation of saccadic sequences with and without remapping

Frontiers in Human Neuroscience, 2016
It is relatively easy to adapt visually-guided saccades because the visual vector and the saccade vector match. The retinal error at the saccade landing position is compared to the prediction error, based on target location and efference copy.
Delphine Lévy-Bencheton, Aarlenne Zein Khan, Denis Pélisson, Caroline Tilikete, Laure Pisella   +4 more
doaj   +1 more source

GIVE me your attention: Differentiating goal identification and goal execution components of the anti-saccade effect.

PLoS ONE, 2019
The anti-saccade task is a commonly used method of assessing individual differences in cognitive control. It has been shown that a number of clinical disorders are characterised by increased anti-saccade cost.
Owen Myles, Ben Grafton, Patrick Clarke, Colin MacLeod   +3 more
doaj   +1 more source

Voluntary saccade inhibition deficits correlate with extended white-matter cortico-basal atrophy in Huntington's disease

NeuroImage: Clinical, 2017
The ability to inhibit automatic versus voluntary saccade commands in demanding situations can be impaired in neurodegenerative diseases such as Huntington's disease (HD).
Israel Vaca-Palomares, Brian C. Coe, Donald C. Brien, Aurelio Campos-Romo, Douglas P. Munoz, Juan Fernandez-Ruiz   +5 more
doaj   +1 more source

Saccade-locked ERPs in the mixed task session on the three midline electrodes (Fz, Cz, Pz).

, 2016
The left panel shows the main effect of Saccade task and the right panel the difference waves (antisaccades minus prosaccades) in the two groups. The grey bar marks the time window used for investigating the presaccadic positivity (PSP) component.
Frédéric Isel (3342002), Karine Doré-Mazars (326269), Xavier Aparicio (3342005), Karin Heidlmayr (358109)   +3 more
core   +1 more source

Saccadic Eye Movements are Related to Turning Performance in Parkinson Disease

Journal of Parkinson’s Disease, 2011
Background. Persons with Parkinson disease (PD) experience difficulty turning, leading to freezing of gait and falls. We hypothesized that saccade dysfunction may relate to turning impairments, as turns are normally initiated with a saccade.
Corey A. Lohnes, Gammon M. Earhart
doaj   +1 more source

Cortical Activation during Landmark-Centered vs. Gaze-Centered Memory of Saccade Targets in the Human: An FMRI Study

Frontiers in Systems Neuroscience, 2017
A remembered saccade target could be encoded in egocentric coordinates such as gaze-centered, or relative to some external allocentric landmark that is independent of the target or gaze (landmark-centered).
Ying Chen, Ying Chen, Ying Chen, J. D. Crawford, J. D. Crawford, J. D. Crawford, J. D. Crawford   +6 more
doaj   +1 more source