Frontal Cortex slides from CTE study
The Chronic Traumatic Encephalopathy study focuses on unusual concentrations of Tau protein, shown here as brown spots. The more brown spots, the greater the brain damage.
From Left to Right:
1) A normal brain of a 65 year old
2) The brain of former NFL linebacker, John Grimsley (who suffered 8 concussions and died at age 45)
3) The brain of a 73 year old boxer who suffered from an extreme form of dementia pugilistica