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Right hemisphere brain damage (RHD) is the result of injury to the right cerebral hemisphere. [1] The right hemisphere of the brain coordinates tasks for functional communication, which include problem solving, memory, and reasoning. [1] Deficits caused by right hemisphere brain damage vary depending on the location of the damage. [2]
Illustration of lateral view of the right side of the brain showing the frontal lobe, other lobes of the brain, and the cerebellum: Specialty: Neurology, psychiatry: Symptoms: Tremor, dystonia [1] Causes: Closed head injuries [2] Diagnostic method: Neuropsychological test [3] Treatment: Speech therapy, supportive care [4]
In head injury, a coup injury occurs under the site of impact with an object, and a contrecoup injury occurs on the side opposite the area that was hit. [1] Coup and contrecoup injuries are associated with cerebral contusions , [ 2 ] a type of traumatic brain injury in which the brain is bruised .
Symptoms of brain injuries can also be influenced by the location of the injury and as a result impairments are specific to the part of the brain affected. Lesion size is correlated with severity, recovery, and comprehension. [4] Brain injuries often create impairment or disability that can vary greatly in severity.
Unequal pupil size is potentially a sign of a serious brain injury. [39] Symptoms are dependent on the type of TBI (diffuse or focal) and the part of the brain that is affected. [40] Unconsciousness tends to last longer for people with injuries on the left side of the brain than for those with injuries on the right. [15]
Brain injuries are very hard to predict in the outcome. Many tests and specialists are needed to determine the likelihood of the prognosis. People with minor brain damage can have debilitating side effects; not just severe brain damage has debilitating effects. The side-effects of a brain injury depend on location and the body's response to injury.
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Injury to the right side of the brain will affect the left visual fields of each eye. The more posterior the cerebral lesion, the more symmetric (congruous) the homonymous hemianopsia will be. For example, a person who has a lesion of the right optic tract will no longer see objects on his left side.