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...

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(Date:4/18/2014)... have used techniques like X-ray crystallography and nuclear magnetic ... atomic structure of molecules, but such efforts have long ... quantities of a specific molecule and often in ordered ... all but impossible to peer into the structure of ... may soon be a thing of the past. ...
(Date:4/18/2014)... as soon as they,re planted may be good news for ... In the wild, a plant whose seeds sprouted at the ... than just an insurance policy against late frosts or unexpected ... advantages too: Plants whose seeds put off sprouting until ... in a team of researchers working at the National Evolutionary ...
(Date:4/17/2014)... A drug under clinical trials to treat tuberculosis ... drugs that act against various bacteria, fungal infections and ... University of Illinois chemists and collaborators. , Led by ... determined the different ways the drug SQ109 attacks the ... target other pathogens from yeast to malaria and ...
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