Results 41 to 50 of about 37,346 (289)

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

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

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

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

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

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

The influence of distractors on express saccades [PDF]

, 2017
It is well known that regular target-driven saccades are affected by the presence of close and remote distractors. Distractors close to the target affect the saccade landing position (known as the global effect), while remote distractors prolong saccade ...
Theeuwes, J.L.; id_orcid, Heeman, J., van der Stigchel, S.   +2 more
core   +2 more sources

When Watching Video, Many Saccades Are Curved and Deviate From a Velocity Profile Model

Frontiers in Neuroscience, 2019
Commonly, saccades are thought to be ballistic eye movements, not modified during flight, with a straight path and a well-described velocity profile. However, they do not always follow a straight path and studies of saccade curvature have been reported ...
Francisco M. Costela, Francisco M. Costela, Russell L. Woods, Russell L. Woods   +3 more
doaj   +1 more source

Sertraline Treatment Can Mimic Niemann‐Pick Type C Biomarker Profile: A Diagnostic Pitfall

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Oxysterols (cholestane‐3β,5α,6β‐triol and 7‐ketocholesterol) and N‐palmitoyl‐O‐phosphocholineserine (PPCS) are sensitive biomarkers for Niemann‐Pick disease type C (NPC) screening. However, false‐positive results occur, with a biomarker profile suggestive of NPC despite the absence of pathogenic variants in genes involved in NPC or ...
Maria Makrygianni, Cecile Pagan, Antony Citterio‐Quentin, Isabelle Rouvet, Giulia Dingeo, Cyril Hanin, Claudine Laurent‐Levinson, Samia Pichard, Bénédicte Héron, Clément Gourguechon, Daniele Mandia, Jerome Guitton, Carole Lacout, Nicolas Schleinitz, Florient Potier, Olivier Flabeau, Elsa Besse‐Pinot, Foudil Lamari, Magali Pettazzoni, Yann Nadjar   +19 more
wiley   +1 more source