Results 11 to 20 of about 7,588 (247)
New insights into vestibular-saccade interaction based on covert corrective saccades in patients with unilateral vestibular deficits [PDF]
Journal of Neurophysiology, 2017 In response to passive high-acceleration head impulses, patients with low vestibulo-ocular reflex (VOR) gains often produce covert (executed while the head is still moving) corrective saccades in the direction of deficient slow phases. Here we examined 23 patients using passive, and 9 also active, head impulses with acute (< 10 days from onset ...
COLAGIORGIO, PAOLO +8 more
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Covert Visual Spatial Orienting and Saccades: Overlapping Neural Systems
NeuroImage, 2000 We used functional magnetic resonance imaging (fMRI) to investigate the functional anatomical relationship between covert orienting of visual spatial attention and execution of saccadic eye movements. Brain areas engaged by shifting spatial attention covertly and by moving the eyes repetitively toward visual targets were compared and contrasted ...
Nobre, A +3 more
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Are Covert Saccade Functionally Relevant in Vestibular Hypofunction? [PDF]
The Cerebellum, 2017 The vestibulo-ocular reflex maintains gaze stabilization during angular or linear head accelerations, allowing adequate dynamic visual acuity. In case of bilateral vestibular hypofunction, patients use saccades to compensate for the reduced vestibulo-ocular reflex function, with covert saccades occurring even during the head displacement. In this study,
Hermann, R. +5 more
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The neurology of saccades and covert shifts in spatial attention [PDF]
Brain, 2000 R. J. Perry, S. Zeki
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Pre-saccadic attention relies more on suppression than does covert attention
Journal of Vision, 2023 During covert and pre-saccadic attentional shifts, it is unclear how facilitation and suppression processes interact for target selection. A recent countermanding task pointed to greater suppression at unattended locations during trials with saccades compared to trials without saccades (i.e., fixation and successful stop trials), whereas target ...
Ouerfelli-Ethier, Julie +4 more
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The effect of offset cues on saccade programming and covert attention [PDF]
Quarterly Journal of Experimental Psychology, 2018 Salient peripheral events trigger fast, “exogenous” covert orienting. The influential premotor theory of attention argues that covert orienting of attention depends upon planned but unexecuted eye-movements. One problem with this theory is that salient peripheral events, such as offsets, appear to summon attention when used to measure covert attention
Smith, D.T., Casteau, S.
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Perceptual decisions interfere more with eye movements than with reach movements
Communications Biology, 2023 Perceptual judgements are formed through invisible cognitive processes. Reading out these judgements is essential for advancing our understanding of decision making and requires inferring covert cognitive states based on overt motor actions.
Kazumichi Matsumiya, Shota Furukawa
doaj +1 more source
Ear, Nose & Throat Journal, 2021 The relationship between objective vestibular tests and subjective vestibular tests is a controversial topic. In this study, to contribute to this issue, the vestibulo-ocular reflex features and their relationship with balance perception at long-term ...
Fakih Cihat Eravcı MD +6 more
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Giving subjects the eye and showing them the finger: socio-biological cues and saccade generation in the anti-saccade task. [PDF]
, 2012 Pointing with the eyes or the finger occurs frequently in social interaction to indicate direction of attention and one's intentions. Research with a voluntary saccade task (where saccade direction is instructed by the colour of a fixation point ...
Nicola J Gregory +2 more
core +1 more source
Do you look where I look? Attention shifts and response preparation following dynamic social cues [PDF]
, 2012 Studies investigating the effects of observing a gaze shift in another person often apply static images of a person with an averted gaze, while measuring response times to a peripheral target.
Hermens, Frouke, Walker, Robin
core +3 more sources