Tag Archives: BRAIN


A virtual-reality technology invented in Canada could improve how health workers assess people suffering from brain injuries and brain diseases.

The KINARM combines a chair with robotic arms and a virtual-reality system that allows researchers to guide patients through tasks, such as hitting balls with virtual paddles.

Once the tests are done, the system gives a detailed report on how the patient differed from normal.

The system has several advantages over traditional testing methods, such as touching one’s finger or nose, said Prof. Stephen Scott of the Centre for Neuroscience Studies at Queen’s University in Kingston, Ont.

“No. 1 is that it is objective,” Scott said Monday from San Diego, where he is the presenting the research at the Society for Neuroscience Conference.

Currently, clinicians often assess patients with brain injuries and disease using crude, subjective scoring systems that range from zero to two, based on whether the patient can touch a nose or another object.

But those systems offer few choices, which makes to difficult to identify problems and show improvements after therapy, Scott said.


Now,a microchip that speaks to human brain

LIGHTING UP GREY AREA: A step towards an organic computer

It Tracks Changes In Brain Activity & Can Help People With Dementia


Brain fingerprinting is based on finding that the brain generates a unique brain wave pattern when a person encounters a familiar stimulus Use of functional magnetic resonance imaging in lie detection derives from studies suggesting that persons asked to lie show different patterns of brain activity than they do when being truthful. Issues related to the use of such evidence in courts are discussed. The author concludes that neither approach is currently supported by enough data regarding its accuracy in detecting deception to warrant use in court.

Brain scans reveal what's in your mind's eye

Brain scans reveal what's in your mind's eye

Scientists are getting closer to being able to create an image of whatever you’re picturing your mind. This is either completely amazing or absolutely terrifying. Maybe a little bit of both.

To construct their model, the researchers used an fMRI machine, which measures blood flow through the brain, to track neural activity in three people as they looked at pictures of everyday settings and objects.As in the earlier study, they looked at parts of the brain linked to the shape of objects. Unlike before, they looked at regions whose activity correlates with general classifications, such as “buildings” or “small groups of people.”



Table 54.1

Pain Sensitivities of Structures in the Head
Sensitive Insensitive
Extracranial Skin, muscles, fascia Blood vessels Mucosa of sinuses Dental structures Skull (except periosteum)
Intracranial Large arteries near circle of Willis Parenchyma of brain
Large venous sinuses Pia mater, arachnoid mater, parts of duramater
Dural arteries and parts of dura Ependyma, choroid plexus