Brain Imaging Research Division
The principles of operation of subcortical neuronal networks and their interaction with neuromodulatory systems. Sensory cortices integrate raw information provided by sensory organs. As most of the neurons located in sensory cortica In the world of the brain, the basal gangl Identifying the neural circuitry to slow down the progression of Alzheimer's Research focuses on providing for early dia Pare received a new R01 award from NIMH to study closed-loop optogenetic control of gamma oscillations in emotional learning.
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New Brain Imaging Techniques Can Improve Testing for Mild Concussions
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From the laboratory of Bart Krekelberg. Brain areas that contribute to perceptual stability. Maps showing how humans distribute attention across visual space. Falls, being struck by an object, and car accidents are among the leading causes for concussions in the US.
For people between ages 15 and 44, car accidents are actually the leading cause of concussions. Concussions occur when there is an impact to your head, leading to a difference in how your brain functions. These differences can relate to difficulties in balance, memory, and attention. Concussions can vary from unnoticeable to hospitalizing. Many people who have a concussion will probably not even know they had a concussion and will recover fully. For people who play sports or are involved in activities where head impact is common, quick locker room or sideline protocols only assess the most severe grade 3 concussion symptoms — generally leaving out the mild grade 1 or moderate grade 2 concussions.
Yet even the least severe concussions affect neural activity.
Brain Imaging Techniques | Boundless Psychology
Although the data are preliminary, the findings are striking: showing greatly increased brain activity following a mild traumatic brain injury mTBI. How we came into this line of study was by chance.
Many of these participants were also friends or colleagues of the research assistants. And as it so happened, some participants had mTBI and experienced concussion symptoms in the following year. Participants were recorded performing cognitive tasks for a different study. When they suffered a brain injury, they were brought back in to be recorded while still experiencing concussion-like symptoms.
Four weeks after their head injury, they were brought back in for a follow-up recording session.
Brighter colors suggests greater oxygen entering that area of the brain. We had not anticipated this head trauma — it was unfortunate luck. But after the research assistants found out, they asked whether those participants would volunteer to be tested again while they had these concussion symptoms. They also volunteered for a 4-week follow up with the same tasks. While the participants had concussion symptoms, they had much greater brain activation than before they experienced a concussion or during the 4-week follow up.ipdwew0030atl2.public.registeredsite.com/map398.php
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According to the microtearing hypothesis , when we have a mTBI, we end up tearing or straining areas of our brain where the impact occurred. These microtears end up creating a sort of brain pathway detour, where pathways for cognitive functions like attention and memory are using alternate pathways in order to compensate for the detours created due to microtearing.
Just like any city, the more detours there are then the more traffic occurs.