Anterior or dorsolateral prefrontal regions of the brain experience bilateral blood flow to facilitate memory recall . In geriatric patients , the blood flow in the prefrontal region increased during low-recall situations , which is the opposite in younger people , suggesting that different retrieval mechanisms are used by the human body , mostly depending on the capacity of the brain to handle recall tasks . For the cognitive task of selecting an item from a set of given choices , four areas of the brain are...











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