alexa Spontaneous fluctuations in brain activity observed with functional magnetic resonance imaging.
Psychiatry

Psychiatry

Journal of Addiction Research & Therapy

Author(s): Fox MD, Raichle ME

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Abstract The majority of functional neuroscience studies have focused on the brain's response to a task or stimulus. However, the brain is very active even in the absence of explicit input or output. In this Article we review recent studies examining spontaneous fluctuations in the blood oxygen level dependent (BOLD) signal of functional magnetic resonance imaging as a potentially important and revealing manifestation of spontaneous neuronal activity. Although several challenges remain, these studies have provided insight into the intrinsic functional architecture of the brain, variability in behaviour and potential physiological correlates of neurological and psychiatric disease. This article was published in Nat Rev Neurosci and referenced in Journal of Addiction Research & Therapy

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