However, the principal function of OKR is to keep gaze stationary by nulling out any involuntary motion that results from visual drift or slow head movement.
Barcelona-based artist Cinta Vidal might agree with the latter visual of drifting personal universes, though her conclusion is much more positive.
Visual stimuli Drifting horizontal bars (2° wide) were presented to the animal at a distance of 25 cm on a high refresh rate monitor.
And though Viktor & Rolf's show on July 12 combined conceptual brilliance with David Lean-style visuals -- models drifting through a near-white mist as their clothes jiggled with masses of tiny bells -- it, too, seemed lost.
In between migraines, when asymptomatic, visual surround suppression for drifting stimuli is greater in individuals with migraine than in controls.
The visual response to the drifting gratings was examined by silicon tetrode recording 4 weeks after viral injection.
Spatial pattern information and motion information are processed in the separate, but intercommunicating, ventral and dorsal visual substreams respectively, hence the drifting and stationary tasks will preferentially bias detection to different neural pathways [39], [40].
In the case of motion aftereffect paradigms, for example, an observer stares at visual motion such as a drifting grating (the adapting stimulus) for a period of seconds.
The visual stimulus consisted of a drifting circular grating patch with optimal orientation, spatial frequency, and velocity, which covered a cell's receptive field.
The visual stimuli were full-contrast drifting sinusoidal gratings, whose spatial and temporal frequencies were adjusted to activate a maximal number of cells.
