Results 31 to 40 of about 45,687 (302)

Bilateral increase in MEG planar gradients prior to saccade onset

Scientific 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, Alessio Fracasso, Michele Deodato, David Melcher, Stefan Van der Stigchel   +4 more
doaj   +1 more source

Action, arousal and subjective time [PDF]

, 2004
Saccadic chronostasis refers to the subjective temporal lengthening of the first visual stimulus perceived after an eye movement. It has been quantified using a duration discrimination task.
Allan, Allan, Bachmann, Boltz, Burle, Collet, Dennett, Duhamel, Fetterman, Franssen, Gibbon, Gibbon, Hellstroem, Hodinott-Hill, Howell, John C. Rothwell, Kielan Yarrow, Lejeune, Lejeune, Libet, Matell, Park, Patrick Haggard, Penton-Voak, Pockett, Richer, Rose, Rosenbaum, Ross, Scharlau, Schlag, Treisman, Treisman, Tyrrell, Umeno, van der Veen, Walker, Wearden, Wearden, Wearden, Wearden, Yarrow, Yarrow, Zakay   +43 more
core   +1 more source

Geometry of saccades and saccadic cycles

, 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   +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

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

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

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

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