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(optokinetic)
3,546 results
  • Autonomous Development of Active Binocular and Motion Vision Through Active Efficient Coding. [Journal Article]
    Front Neurorobot 2019; 13:49Lelais A, Mahn J, … Triesch J
  • We present a model for the autonomous and simultaneous learning of active binocular and motion vision. The model is based on the Active Efficient Coding (AEC) framework, a recent generalization of classic efficient coding theories to active perception. The model learns how to efficiently encode the incoming visual signals generated by an object moving in 3-D through sparse coding. Simultaneously,…
  • Measuring vision using innate behaviours in mice with intact and impaired retina function. [Journal Article]
    Sci Rep 2019; 9(1):10396Storchi R, Rodgers J, … Lucas RJ
  • Measuring vision in rodents is a critical step for understanding vision, improving models of human disease, and developing therapies. Established behavioural tests for perceptual vision, such as the visual water task, rely on learning. The learning process, while effective for sighted animals, can be laborious and stressful in animals with impaired vision, requiring long periods of training. Curr…
  • Audiovestibular functions in chronic kidney disease in relation to haemodialysis. [Journal Article]
    J Laryngol Otol 2019; 133(7):592-599Gabr TA, Kotait MA, Okda HI
  • CONCLUSIONS: Both the auditory and vestibular pathways are affected in different stages of chronic kidney disease. High-frequency pure tone audiometry, otoacoustic emissions and combined vestibular-evoked myogenic potentials could be performed routinely in patients with chronic kidney disease, regardless of the disease stage.
  • Eye movements in man and other animals. [Journal Article]
    Vision Res 2019; 162:1-7Land M
  • Good vision requires a near stationary image if motion blur is to be avoided. All animals with good eyesight (principally the vertebrates, arthropods and cephalopod molluscs) have adopted a very similar strategy for achieving this: fixations in which gaze is kept still, with saccades to change gaze direction as fast as possible. In all these groups the stability of fixations is maintained by refl…
  • Model of optokinetic responses involving two different visual motion processing pathways. [Journal Article]
    Prog Brain Res 2019; 248:329-340Miura K, Takemura A, … Kawano K
  • To understand visual motion processing underlying the optokinetic response (OKR), we developed a biomimetic model that reproduces the findings from behavioral experiments. We recorded OKRs induced by drifting gratings with different spatiotemporal frequencies from humans and non-human primates. The characteristics of the initial open-loop responses and the closed-loop eye velocity gains were anal…
  • A conceptual model of the visual control of posture. [Journal Article]
    Prog Brain Res 2019; 248:285-302Bronstein AM
  • In order to isolate the visual contribution to the control of postural balance, experiments in which subjects are exposed to large-field visual motion (optokinetic) stimuli are reviewed. In these situations, at motion onset, the visual stimulus signals subject self-motion but inertial (vestibulo-proprioceptive) cues do not. Visually evoked postural responses (VEPR) thus induced can be quickly sup…
  • Is infantile esotropia subcortical in origin? [Journal Article]
    Prog Brain Res 2019; 248:183-193Brodsky MC
  • Essential infantile esotropia (EIE) is often attributed to a primary disturbance within the visual cortex based upon the findings of monocular horizontal optokinetic asymmetry and correlative horizontal motion detection asymmetry. However, these physiologic aberrations conform to what would be observed if the visual cortex secondarily reconfigured itself to the preexisting subcortical optokinetic…
  • Do central vestibular findings predict abnormal findings on magnetic resonance imaging? [Journal Article]
    J Laryngol Otol 2019; 133(7):554-559Mankekar G, Jeha G, … Arriaga MA
  • CONCLUSIONS: Central vestibular findings had a 50.9 per cent positive predictive value for magnetic resonance imaging abnormalities across all age groups. Magnetic resonance imaging is medically justified to further evaluate patients with central findings on vestibular studies. Therefore, it is reasonable to request magnetic resonance imaging in these patients.
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