By Isabelle St-Jean RSW
The focus of this blog article includes disabilities that result from brain injury.
In Canada alone, thousands of people acquire brain injuries each year and most of them are young adults. The incidence of such injuries is two times greater in men than in women. Although the disabilities that result from brain injuries vary among people, some areas of commonality tend to include memory loss, impaired reasoning skills and “one-track thinking”.
Speaking of prevention, for children and youth, wearing a helmet is evidently the most important habit. Whether it is for snowboarding, cycling or skateboarding, a child should be encourage to think that wearing a helmet is not just an option, it’s a necessary imperative.
Research in this field reveals that head injury is the leading cause of death in bicycle crashes and is the most important determinant of bicycle related death and permanent disability. Head injuries account for more than 60 percent of bicycle-related deaths, more than two-thirds of bicycle-related hospital admissions and about one-third of hospital emergency room visits for bicycling injuries. Given these statistics it is surprising to see that some adults and children still go cycling without the protection of a helmet. It has been proven that helmet use reduces the risk of bicycle-related death and injury and the severity of head injury when a crash occurs.
While most head and brain injury occur by accident, there was at least one rare case in which a child was born with only half of her brain. Consider the case of Michelle Mack now in her late 20’s who has completed high school and is living a relatively full life with only half of her brain functioning. Ten years ago, Dr. Jordan Grafman, chief of the Cognitive Neuroscience Section at the National Institutes of Health, finally diagnosed the problem that Michelle had been experiencing.
An MRI scan revealed she was missing nearly all the left side of her brain. While it was clear Mack has some problems, Grafman said he and the family were shocked by the extent of the damage. “We were surprised to see the extent of the lesion in her brain, which basically took away the left side of her brain,” said Grafman. “There’s some very deep structures remaining, but the surface of her brain, the cortex is 95 percent gone and some of the deeper structures, structures that control movement, are missing. These are all structures that are important for movement, behavior, cognition.”
The only answer, Grafman said, was that Mack’s brain has rewired itself. The remaining half took over some of the essential functions that are normally done by the left, such as speaking and reading. That rewiring, however, came at a cost.
“Michelle has fairly normal language abilities, certainly basic language abilities, she can construct a sentence, she can understand instructions, she can find words when she’s talking, but actually she has some trouble in some aspects of visual-spatial processing,” said Grafman. “It’s quite possible that in her learning, in her development, when the right hemisphere either took over or developed some of the language abilities that it cost her in some of the skills that are normally mediated by the right side of the brain,” added Grafman.
This story shows that the brain can have astounding resilience and adaptive capabilities in addition to its neuroplasticity. Such story implies that those who may have the misfortune of having a brain injury, it may be possible to recover more faculties over time than we previously thought possible, prior to the extensive research on neuroscience.
With summer just ahead of us here in the lower mainland, we parents must be vigilant in not only modeling the use of a helmet for activities such as cycling, but that we insist on our children having to wear such a protection gear.
Do you have a story of someone you know recovered well from a brain injury? If you have any comments or stories to add here, we would like to hear back from you. Thanks in advance for participating in this conversation about increasing safety for everyone this month and all the ones to follow.