The pathophysiological process of Alzheimer's disease (AD) begins years, even decades, prior to the time a clinical diagnosis can be established. This long asymptomatic or minimally symptomatic phase ...
A new study shows how neurochemicals can influence blood vessels. The findings may change how researchers interpret results from functional magnetic resonance imaging studies. The brain is an ...
Patients with brain injury who are unresponsive to commands may perform cognitive tasks that are detected on functional magnetic resonance imaging (fMRI) and electroencephalography (EEG). This ...
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