Sport head injury and DV abuse similarities
Research shows that repeated physical blows to the head can directly impair neurological functioning, whereas abuse can impair thinking through chronic stress, fear, coercive control, sleep disruption, trauma responses, and trauma bonding. The mechanisms are different, but the resulting difficulty with judgment can sometimes look remarkably similar.
The parallel is powerful
An athlete who repeatedly sustains blows to the head may experience:
- impaired concentration and decision-making
- slowed processing
- confusion
- changes in emotional regulation
- impaired judgment
- difficulty recognizing that something is wrong
- increased reliance on automatic or familiar responses
A victim living under chronic abuse may experience:
- hypervigilance and constant threat monitoring
- difficulty concentrating
- distorted self-perception
- impaired decision-making under fear
- emotional exhaustion
- confusion about what is real or trustworthy
- difficulty recognizing the severity of the abuse
- defending or protecting the person who is harming them
The “Why would they protect the person hurting them?” question is especially important.
That behavior isn’t necessarily evidence that the victim is irrational, unintelligent, or secretly approving of the abuse. Under coercive control, the brain can become focused on survival rather than objective evaluation. The victim may learn that minimizing the abuser, appeasing them, defending them, or accepting their version of reality temporarily reduces danger or conflict.
That’s where trauma bonding can become particularly powerful: the person causing the injury can simultaneously become the person the victim desperately seeks safety, approval, or relief from.
There is also an important distinction from your sports analogy:
The athlete may say, “I’m fine,” because the injured brain doesn’t fully appreciate the impairment.
The victim may say, “He’s not really that bad,” because the traumatized brain has adapted to survive an environment in which acknowledging the full reality may feel psychologically or physically dangerous.
Neither response should automatically be interpreted as evidence that the person is functioning normally.
And this is why statements such as “Why didn’t she just leave?” are so clinically inadequate. They assume the victim is making decisions from a calm, safe, fully autonomous state of mind. Chronic abuse can profoundly alter the conditions under which decisions are made.
One caution, though: I would not tell victims that abuse has literally “damaged their brain the same way a concussion does.” That’s medically too strong. A more defensible formulation is:
Repeated blows can injure the brain. Repeated psychological assaults can overwhelm the brain’s capacity to process threat, regulate emotion, evaluate information, and make decisions freely. The injuries are different, but both can interfere with clear thinking and judgment.
Dr Kathie Mathis, PsyD