The human brain has 100 billion neurons, connected to each other in networks that allow us to interpret the world around us, plan for the future, and control our actions and movements. MIT neuroscientist Sebastian Seung wants to map those networks, cre…
Tag: Neurology / Neuroscience
Locked-in patients can answer questions with the pupils of their eyes
Patients who are otherwise completely unable to communicate can answer yes or no questions within seconds with the help of a simple system – consisting of just a laptop and camera – that measures nothing but the size of their pupils…
Cognitive Function, IQ Linked To Blood Vessels In The Eye
The width of blood vessels in the retina, located at the back of the eye, may indicate brain health years before the onset of dementia and other deficits, according to a new study published in Psychological Science, a journal of the Association for Psy…
Visual Test Associated With High IQ
Optical illusions have long been used in neuroscience to point out perceptions into how the brain functions, and now a visual test can detect impaired abilities to see large motions in high-IQ people, according to a new study. The finding, published i…
Vision Scientists Pinpoint How We See Fast-Moving Objects Coming
How does San Francisco Giants slugger Pablo Sandoval swat a 95 mph fastball, or tennis icon Venus Williams see the oncoming ball, let alone return her sister Serena’s 120 mph serves? For the first time, vision scientists at the University of California…
Brain’s Visual Cortex Activated By Reward Linked To Image
Once rhesus monkeys learn to associate a picture with a reward, the reward by itself becomes enough to alter the activity in the monkeys’ visual cortex. This finding was made by neurophysiologists Wim Vanduffel and John Arsenault (KU Leuven and Harvard…
How Drosophila Recovers The Neurotransmitter Histamine
In the fruit fly Drosophila, the functions of the three enzymes Tan, Ebony and Black are closely intertwined – among other things they are involved in neurotransmitter recycling for the visual process. RUB researchers from the Department of Biochemistr…
In Pseudotumor Cerebri, A Potentially Blinding Vein Narrowing, Brain Stent Offers Alternative To Shunt
A team of interventional neuroradiologists and neurosurgeons at Johns Hopkins reports wide success with a new procedure to treat pseudotumor cerebri, a rare but potentially blinding condition marked by excessive pressure inside the skull, caused by a d…
Unraveling The Brain’s Vision Secrets
A new study led by scientists at the Universities of York and Bradford has identified the two areas of the brain responsible for our perception of orientation and shape…