A change in how a person acts is called altered behavior. A change
Altered behavior can be caused by conditions or substances that may
affect the brain, such as:
Changes in behavior may be sudden, such as those caused by a stroke
or head injury. Or they may be gradual, such as those caused by a tumor or swelling in the
September 1, 2011
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
& H. Michael O'Connor, MD - Emergency Medicine
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