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A prolonged MR T 2 relaxation time was proposed to mark the presence and severity of Alzheimer's disease (AD). We studied the value of T 2 relaxometry in diagnosing early AD. T 2 was measured from 54 patients with AD, 25 subjects with age-associated memory impairment (AAMI), 18 elderly and 16 young controls. The AD patients had longer T 2 in the right hippocampal...
We studied the habituation of auditory N100 responses in subjects with age-associated memory impairment (AAMI) and in healthy age-matched volunteers. The findings were correlated with volumes of the amygdala, hippocampus, and frontal lobe measured by magnetic resonance imaging (MRI), as well as with subjects' performance on tests assessing frontal lobe functions and memory. Habituation of N100 did...
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