Results 31 to 40 of about 36,989 (289)

Saccadic velocity in the new suppression head impulse test (SHIMP): a new indicator of horizontal vestibular canal paresis and of vestibular compensation

open access: yesFrontiers in Neurology, 2016
ObjectiveTo determine whether saccadic velocity in the suppression head impulse paradigm (SHIMP) test is a reliable indicator of vestibular loss at the acute and at the chronic stage in patients suffering from different vestibular pathologies.Methods35 ...
Qiwen Shen   +8 more
doaj   +1 more source

Saccadic Direction Errors are Associated with Impulsive Compulsive Behaviours in Parkinson’s Disease Patients

open access: yesJournal of Parkinson’s Disease, 2019
Fifteen individuals with Parkinson’s disease (PD) and impulsive compulsive behaviours (PD+ICB) were compared to 15 PD patients without ICBs (PD-ICB) and 15 healthy controls (HC) on a pro-saccades and an anti-saccades task to assess if ICBs are associated
Pedro Barbosa   +5 more
doaj   +1 more source

Visual contrast processing is largely unaltered during saccades

open access: yesFrontiers in Psychology, 2011
Saccadic suppression refers to a reduction in visual sensitivity during saccadic eye movements. This reduction is conventionally regarded as mediated by either of two sources.
Miguel A García-Pérez, Eli ePeli
doaj   +1 more source

Modeling the Triggering of Saccades, Microsaccades, and Saccadic Intrusions [PDF]

open access: yesFrontiers in Neurology, 2018
When we explore a static visual scene, our eyes move in a sequence of fast eye movements called saccades, which are separated by fixation periods of relative eye stability. Based on uncertain sensory and cognitive inputs, the oculomotor system must decide, at every moment, whether to initiate a saccade or to remain in the fixation state.
Jorge Otero-Millan   +7 more
openaire   +3 more sources

Saccades during attempted fixation in parkinsonian disorders and recessive ataxia: from microsaccades to square-wave jerks. [PDF]

open access: yesPLoS ONE, 2013
During attempted visual fixation, saccades of a range of sizes occur. These "fixational saccades" include microsaccades, which are not apparent in regular clinical tests, and "saccadic intrusions", predominantly horizontal saccades that interrupt ...
Jorge Otero-Millan   +4 more
doaj   +1 more source

Saccade-induced image motion cannot account for post-saccadic enhancement of visual processing in primate MST

open access: yesFrontiers in Systems Neuroscience, 2015
Primates use saccadic eye movements to make gaze changes. In many visual areas, including the dorsal medial superior temporal area (MSTd) of macaques, neural responses to visual stimuli are reduced during saccades but enhanced afterwards.
Shaun L Cloherty   +7 more
doaj   +1 more source

Saccades and driving

open access: yesActa Otorhinolaryngologica Italica, 2019
Driving is not only a physical task, but is also a mental task. Visual inputs are indispensable in scanning the road, communicating with other road users and monitoring in-vehicle devices. The probability to detect an object while driving (conspicuity) is very important for assessment of driving effectiveness, and correct choice of information relevant
G. Guidetti   +5 more
openaire   +4 more sources

Nature of Variability in Saccades [PDF]

open access: yesJournal 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

Microsaccades and preparatory set: a comparison between delayed and immediate, exogenous and endogenous pro- and anti-saccades

open access: yes, 2009
When we fixate an object, our eyes are not entirely still, but undergo small displacements such as microsaccades. Here, we investigate whether these microsaccades are sensitive to the preparatory processes involved in programming a saccade.
Frouke Hermens (17159764)   +2 more
core   +5 more sources

Elements of Feed-Forward and Feedback Control in Drosophila Body Saccades [PDF]

open access: yes, 2007
I have developed a new experimental preparation of the fruit fly, Drosophila melanogaster. A fly is glued to a steel pin, which is held in the field between two magnets such that the fly is free to rotate about only one axis. Such "magnetically tethered"
Bender, John Andrew
core   +1 more source

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