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Visual masking involves surrounding a target image (here, the word "radio") with another image. Visual masking is a phenomenon of visual perception. It occurs when the visibility of one image, called a target, is reduced by the presence of another image, called a mask. [1] The target might be invisible or appear to have reduced contrast or ...
In type-A masking, the degree of masking is highest when prime and target follow each other at short SOAs, and decreases with SOA (purple). In type-B masking, the degree of masking is stronger at intermediate SOAs than at shorter or longer SOAs (red). Type-B time-courses can be obtained in metacontrast masking under specific stimulus conditions.
As the delay of circle presentation increased, accuracy once again improved. This phenomenon was an example of metacontrast masking. Masking was also observed when images such as random lines were presented immediately after stimulus offset. [33]
Metacontrast and paracontrast involve both time and space. When one half of a circle is lit for 10 milliseconds (ms), it is at its maximal intensity. If the other half is displayed at the same time (but 20–50 ms later), there is a mutual inhibition: the left side is darkened by the right half ( metacontrast ), and the center may be completely ...
Saccadic masking, also known as (visual) saccadic suppression, is the phenomenon in visual perception where the brain selectively blocks visual processing during eye movements in such a way that neither the motion of the eye (and subsequent motion blur of the image) nor the gap in visual perception is noticeable to the viewer.
Priming is a concept in psychology and psycholinguistics to describe how exposure to one stimulus may influence a response to a subsequent stimulus, without conscious guidance or intention.
From 1970 to 1990 Rudolf Groner's research interests focused on the mathematical modeling of complex cognitive activities by elementary modules. [4] These modules consist of basic perceptual and attentional processes, and the visual information input is measured by parameters of eye fixations.
While at these two positions, Werner's work remained spread across several interests including: contour, metacontrast, binocular perception of depth, aesthetics, and developmental comparisons between normal functioning children and children with mental retardation.