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How to understand it |
1 Geriatric Research Educational Clinical Center, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA; Boston University Alzheimers Disease Center, Boston University, Boston, MA; Division of Cognitive and Behavioral Neurology, Department of Neurology, Brigham and Womens Hospital, Boston, MA; Harvard Medical School, Boston, MA, USA
2 Department of Neurology, McLean Hospital, Belmont, MA and Harvard Medical School, Boston, MA, USA
Correspondence to:
Correspondence to:
Dr A E Budson
Building 62, Room B30, Edith Nourse Rogers Memorial Veterans Hospital, 200 Springs Road, Bedford, MA 01730, USA; abudson@bu.edu
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Complaints of impaired memory are among the most common symptoms reported to neurologists. Moreover, impairment of memory is one of the most disabling aspects of many neurological disorders, including neurodegenerative diseases, strokes, tumours, head trauma, hypoxia, cardiac surgery, malnutrition, attention deficit disorder, depression, anxiety, medication adverse effects, and just normal aging. This memory loss often impairs the patients daily activities, profoundly affecting not just them but also their families.
Memory research that began with neuropsychological studies of patients with focal brain lesions now includes new methods such as positron emission tomography, functional MRI, and event-related potentials which have all provided a more refined and improved classification system. Instead of conceptualising memory as "short-term" versus "long-term", we now think of memory as a collection of mental abilities that use different systems within the brain. A memory system is a way that the brain processes information in order to make it available
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