Results 31 to 40 of about 32,928 (301)

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

Frontiers 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, Shaun L Cloherty, Shaun L Cloherty, Nathan A Crowder, Michael J Mustari, Michael J Mustari, Michael R Ibbotson, Michael R Ibbotson   +7 more
doaj   +1 more source

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

Journal 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, Diego Kaski, Patricia Castro, Andrew J. Lees, Thomas T. Warner, Atbin Djamshidian   +5 more
doaj   +1 more source

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

Frontiers 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, Christophe Magnani, Olivier Sterkers, Georges Lamas, Pierre-Paul Vidal, Julien Sadoun, Ian S Curthoys, Catherine De Waele, Catherine De Waele   +8 more
doaj   +1 more source

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

Frontiers 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, Lance M. Optican, Stephen L. Macknik, Stephen L. Macknik, Stephen L. Macknik, Susana Martinez-Conde, Susana Martinez-Conde, Susana Martinez-Conde   +7 more
openaire   +3 more sources

A deficit of spatial remapping in constructional apraxia after right-hemisphere stroke [PDF]

, 2010
This Article is provided by the Brunel Open Access Publising Fund - Copyright @ 2010 Oxford University PressConstructional apraxia refers to the inability of patients to copy accurately drawings or three-dimensional constructions. It is a common disorder
Russell, C, Russell, Charlotte; id_orcid, Merola, Sheila, Malhotra, Paresh, Deidda, C, Malhotra, P, Husain, M, Crinion, JT, Merola, S, Crinion, Jennifer T, Husain, Masud, Deidda, Cristiana   +11 more
core   +1 more source

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

PLoS 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, Rosalyn Schneider, R John Leigh, Stephen L Macknik, Susana Martinez-Conde   +4 more
doaj   +1 more source

Saccades and driving

Acta 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, R. Guidetti, Maurizio Manfredi, Marco Manfredi, A. Lucchetta, S. Livio   +5 more
openaire   +4 more sources

Visual contrast processing is largely unaltered during saccades

Frontiers 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

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

Direction of SWJ saccades and non-SWJ saccades. [PDF]

, 2015
A) Polar histogram of saccade directions for SWJ saccades and non-SWJ saccades. We show the average saccade direction distribution across monkeys (n = 5). Both SWJ saccades and non-SWJ saccades are biased vertically.
Jorge Otero-Millan (389215), Leandro L. Di Stasi (753616), John R. Leigh (753618), Stephen L. Macknik (389217), Francisco M. Costela (647619), Ali Najafian Jazi (647622), Michael B. McCamy (647620), Héctor Rieiro (753617), Xoana G. Troncoso (647621), Susana Martinez-Conde (389218)   +9 more
core   +1 more source