The Japanese journal of neuropsychology

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ArticleTitle	Behavioral and psychiatric symptoms after focal brain injury and traumatic brain injury
Language	J
AuthorList	Michitaka Funayama
Affiliation	Department of Neuropsychiatry, Ashikaga Red Cross Hospital
Publication	Japanese Journal of Neuropsychology: 36 (2), 69-76, 2020
Received
Accepted
Abstract	Cognitive impairments after traumatic brain injury is considered to be resulted from both focal brain injury due to brain contusion and diffuse axonal injury. Symptoms caused by brain contusion are similar to those with focal brain injury, such as cerebrovascular diseases, which depend on the individual lesion area. In contrast, cognitive dysfunctions after diffuse axonal injury is not confined to one domain, rather, they include a wide range of cognitive functions, e.g., attention, executive function, proceeding speed, and working memory, as well as behavioral and psychiatric symptoms, such as apathy, preoccupation, and emotional instability. From clinical observation, there is a possibility that preoccupation and emotional instability might be related to deficits in processing speed and working memory.
Keywords	traumatic brain injury, diffuse axonal injury, working memory, processing speed, preoccupation