PSYC31H3 Chapter Notes - Chapter 7: Blood Vessel, Thrombosis, Frontal Lobe
Document Summary
**closed head injuries (chi) [blunt head injuries] skull remains intact and brain isn"t exposed; this type of brain damage occurs in 2 stages: Primary injury damage that occurs at the time of impact. -countercoup lesions when brain sustains a bruise (contusion) in an area opposite the blow, occurs in most cases of occipital injury. Second injury consists of effects of the physiological processes set in motion by the primary injury (1) mild tbi. No evidence of intracranial injury on neuroimaging examination. Complicated mild tbi -characterized by same injury characteristics w/ exception of intracranial injury being present. Complicated mild tbi is basically mild tbi plus abnormalities on ct scan. Cognitive deficits attentional deficits, verbal retrieval problems, sensory/perceptual+motor disorders. Common noncognitive sequelae of mild tbi emotional distress/fatigue, depression and anxiety (2) moderate tbi. Loc corresponds to greater than 20min and less than 36hrs. Pta is greater than 24hrs and less than 7 days.
