August 2009

When a head is twisted violently, such as in a car crash, microscopic brain structures, called axons, can tear.  The damage to the brain is a called a "diffuse axonal injury," or DAI.  When the axons tear, chemicals that were contained in those structures can leak into the brain tissue.  The torn axons and chemicals in the brain tissue

Waivers signed by parents, releasing liability for future negligent acts committed against minor children in recreational and related settings, are generally enforced by judges in California as discussed here. Interestingly, a clear majority of courts in other states have held that a parent may not release a minor’s prospective claim for negligence.

And when the

Neuropsychologist researcher and professor Erin Bigler, PhD. recently spoke about the advances in images of post-concussion brains.  As discussed here, concussions or mild traumatic brain injuries may not show up on standard MRI or CT images.  Dr. Bigler described a new technique for analyzing MRI scans called "diffusion tensor imaging" or DTI.  This technique illustrates the direction of