Stimulating part of the brain with electricity could improve the cognitive function of patients who've experienced debilitating traumatic brain injuries (TBI), an early clinical trial suggests.
TBI is caused by a severe blow to the head or body that damages neurons in the brain, or by an object directly penetrating the skull. The injuries range in severity, with mild cases causing temporary decline in normal brain function and more severe cases leading to longer-term impairments or even death.
