Results 1 to 10 of about 53,878 (340)

Effort drives saccade selection

eLife
What determines where to move the eyes? We recently showed that pupil size, a well-established marker of effort, also reflects the effort associated with making a saccade (‘saccade costs’).
Damian Koevoet, Laura Van Zantwijk, Marnix Naber, Sebastiaan Mathôt, Stefan van der Stigchel, Christoph Strauch   +5 more
doaj   +3 more sources

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

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

Frontiers 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, Deba Prasad Dash, Alakananda Dutt, Anirban Dutta, Abhijit Das, Uttama Lahiri   +5 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

Looking for discriminating is different from looking for looking's sake. [PDF]

PLoS ONE, 2012
Recent studies provide evidence for task-specific influences on saccadic eye movements. For instance, saccades exhibit higher peak velocity when the task requires coordinating eye and hand movements.
Hans-Joachim Bieg, Jean-Pierre Bresciani, Heinrich H Bülthoff, Lewis L Chuang   +3 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

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

Oculomotor adaptation elicited by intra-saccadic visual stimulation: time-course of efficient visual target perturbation.

Frontiers in Human Neuroscience, 2016
Perception of our visual environment strongly depends on saccadic eye movements, which in turn are calibrated by saccadic adaptation mechanisms elicited by systematic movement errors. Current models of saccadic adaptation assume that visual error signals
Muriel ePanouilleres, Muriel ePanouilleres, Valerie eGaveau, Jeremy eDebatisse, Patricia eJacquin, Marie eLeBlond, Denis ePélisson   +6 more
doaj   +1 more source