Visual motion
Visual Motion Onset Brain–Computer Interface
... The EEG signals were recorded and preprocessed online by an in–house extended BCI2000 application [17,18] and segmented (“epoched”) as features drawn from ERP intervals of 0 ∼ 700 ms. The sampling rate was set to 512 Hz, ...
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Cross modal influence of mechanosensory input on gaze responses to visual motion in Drosophila
... wide-field visual motion compared with intact ...wide-field motion at a constant pattern ...between visual stimulus angle and head movement response ...
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Stronger Neural Modulation by Visual Motion Intensity in Autism Spectrum Disorders
... the visual cortex increased approximately linearly with the strength of visual ...of visual motion in a similar ...a motion direction discrimination task with increasing levels of ...
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Visual motion processing in migraine: enhanced motion after effects are related to display contrast, visual symptoms, visual triggers and attack frequency
... A motion task is likely to be the most promising type of visual task to pursue in an applied or clinical ...migraine. Motion tasks using random dot displays, rather drifting gratings, are likely to ...
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Visual motion processing deficits in infants with the fragile X premutation
... selective visual motion pro- cessing impairment on second-order motion gradient stimuli is present that is not significantly different from that found in those with the FX full ...
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Does sound affect visual motion change detection?
... of visual movement and whose activity is strongly correlated with visual motion perception (Britten, Shadlen, Newsome & Movshon, ...strong motion selectivity (Bremmer et ...
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Visual motion integration is mediated by directional ambiguities in local motion signals
... global motion direction coincided with the VA of the local motions within the stimulus (a VA read-out algorithm applied to a model neural population of motion-sensitive mechanisms produces the same ...the ...
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Drosophila Sidekick is required in developing photoreceptors to enable visual motion detection
... vertebrate visual systems share common design principles reflecting deep evolutionary homology (Sanes and Zipursky, 2010; Shubin et ...underlying motion detection also have many common features despite ...
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Responses of compass neurons in the locust brain to visual motion and leg motor activity
... large-field visual motion or when the animal is engaged in walking ...Large-field motion was combined with simulation of approaching objects to evaluate whether responses differed from those ...
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Methods for the Analysis of Visual Motion
... The recognition of the observed actions as one of the 9 learned periodic actions stepping, walking and running viewed from 45°, 90°, and 135° angles is repeated with different numbers of[r] ...
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Temporal limits of visual motion processing: psychophysics
... time scale at which cat retinal ganglion cells in vivo represent motion information and temporal thresholds.. 25.[r] ...
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The free flight response of Drosophila to motion of the visual environment
... To maintain the ratio of 0.76 between the spacing of visual axes (4.6°) and the angular sensitivity (3.5°) in the analytical model, we slightly raised the width of the Gaussian filter to 3.8°. We calculated the ...
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Direction of visual apparent motion driven solely by timing of a static sound
... influence visual motion more effectively than beeps that lead in time, in accord with an observed asymmetry in past studies of temporal ventriloquism [2,12] (which unlike here did not consider the ...
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Visual perception and processing of radial motion
... of visual motion perception (see Courtney & Ungerleider (1997), Tootell, Dale, Sereno & Malach (1996), Wandell (1999) and Culham, He, Dukelow & Verstraten ...known motion-selective areas ...
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Effects of Motion Pattern Characteristics on the Perception of Visual Acceleration
... example, motion information gives the observer the ability to accomplish goal-direct activities, such as when walking or catching a falling ...process visual motion information range from very simple ...
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Motion-induced position shifts in visual perception tasks and eye movement
... the visual input limited because the eyes are simply moving too fast, and consequently, the brain cannot process the resulting retinal images? Thile, Kubischik & Hoffmann (2002) investigated this research ...
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An analog VLSI motion sensor based on the fly visual system
... In Chapter 2, we introduced the optomotor response, where visual motion information is used as a feedback control signal to estimate and cancel self-rotation.. This sensorimotor loop is [r] ...
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Multiple spectral inputs improve motion discrimination in the Drosophila visual system
... Manipulating spectral sensitivity of the motion pathway to elucidate circuit computations. (A)Schematic offly photo-receptors innervating motion and color pathways. A light point is sampled by six outer ...
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Visual tracking under motion blur
... Motivated by the above ideas, we propose to accomplish tracking under motion blur in a joint blur kernel estimation and multi-task reverse sparse learning model. The blur kernel k and the sparse coding matrix C ...
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Colour and luminance interactions in the visual perception of motion
... of motion of red–green chromatic gratings is underpinned by colour-opponent visual channels exhibiting only weak sel- ectivity for direction of motion (Willis & Anderson ...of visual ...
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