Tag: "illusions" at medical news
New book explains age-old mystery of geometrical illusions
..., Purves and his colleagues began exploring visual illusions
-- the name given to the more obvious discrepancies between the physical world and the way people see it -- to understand the strategy the brain uses in perceiving the world. Basically, they statistically compared perceptions -- such as the apparent ...
Classic illusion sheds new light on the neural site of tactile perception
...nd point had also been stimulated by virtue of the illusions
created by the timing of the pulses. Blankenb...mb pain following amputation, and other perceptual illusions
associated with disease. The authors point out that recent fMRI studies have shown somewhat analogou...
There's more than meets the eye in judging the size of an object
...ing they haven't read our paper!" Murray said such illusions
are more than simple curiosities because they can help identify how the visual system works. "Our finding is important because it demonstrates that the process of making inferences about visual properties in our environment is occurring in the earlie...
Brain changes in patients with migraine
...ne who had aura (neurological disturbances such as illusions
of flashing lights, zig-zag lines, or blind spots) and those who did not, but the area of cortical thickening in one area corresponded to the source of cortical spreading depression previously identified in a person who had migraine with aura. As wel...
Wired for sound: How the brain senses visual illusions
In a study that could help reveal how illusions
are produced in the brain's visual cortex, researchers at the UCSD School of Medicine have found new evidence of rapid integration of auditory and visual sensations in the brain. Their findings, which provide new insight into neural mechanisms by wh...