Results 41 to 50 of about 45,687 (302)

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

open access: yesPLoS 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   +3 more
doaj   +1 more source

Dynamics of oculomotor direction discrimination [PDF]

open access: yes, 2016
Successful foveation of a dynamic target depends on good predictions of its movement direction and speed. We measured and compared the temporal dynamics of directional precision of both saccades and smooth pursuit and their interactions. We also compared
Braun, Doris I., Gegenfurtner, Karl R.
core   +1 more source

Voluntary saccade inhibition deficits correlate with extended white-matter cortico-basal atrophy in Huntington's disease

open access: yesNeuroImage: 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   +5 more
doaj   +1 more source

ALS With and Without Upper Motor Neuron Signs: A Comparative Study Supporting the Gold Coast Criteria

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The Gold Coast criteria permit diagnosis of amyotrophic lateral sclerosis (ALS) even without upper motor neuron (UMN) signs. However, whether ALS patients with UMN signs (ALSwUMN) and those without (ALSwoUMN) share similar characteristics and prognoses remains unclear.
Hee‐Jae Jung   +7 more
wiley   +1 more source

Spatial frequency processing in the central and peripheral visual field during scene viewing

open access: yes, 2016
Visuospatial attention and gaze control depend on the interaction of foveal and peripheral processing. The foveal and peripheral regions of the visual field are differentially sensitive to parts of the spatial-frequency spectrum.
Cajar, Anke   +2 more
core   +1 more source

Multimodal Representation of Space in the Posterior Parietal Cortex and its use in Planning Movements [PDF]

open access: yes, 1997
Recent experiments are reviewed that indicate that sensory signals from many modalities, as well as efference copy signals from motor structures, converge in the posterior parietal cortex in order to code the spatial locations of goals for movement ...
Andersen, Richard A.   +3 more
core   +1 more source

Cortical Activation during Landmark-Centered vs. Gaze-Centered Memory of Saccade Targets in the Human: An FMRI Study

open access: yesFrontiers 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   +6 more
doaj   +1 more source

Neuroinflammation in GAD65 Antibody‐Associated Epilepsy Measured Using [18F]DPA‐714 PET/MRI

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT The timing for initiating immunotherapy in patients with glutamic acid decarboxylase 65 (GAD65) antibody‐associated epilepsy is a challenge. We used the translocator protein radioligand [18F]DPA‐714 and PET to evaluate brain microglial activation.
Jingjing Chen   +10 more
wiley   +1 more source

Looking away from faces: influence of high-level visual processes on saccade programming

open access: yes, 2010
Human faces capture attention more than other visual stimuli. Here we investigated whether such face-specific biases rely on automatic (involuntary) or voluntary orienting responses.
Caldara, R.   +3 more
core   +1 more source

Saccades and drifts differentially modulate neuronal activity in V1: Effects of retinal image motion, position, and extraretinal influences [PDF]

open access: yes, 2008
In natural vision, continuously changing input is generated by fast saccadic eye movements and slow drifts. We analyzed effects of fixational saccades, voluntary saccades, and drifts on the activity of macaque V1 neurons.
Gur, Moshe   +2 more
core   +1 more source

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