Brain work and brain imaging. Raichle, M. E and Mintun, M. A Annual Review of Neuroscience, 29:449--476, 2006.
Brain work and brain imaging [link]Paper  doi  abstract   bibtex   
Functional brain imaging with positron emission tomography and magnetic resonance imaging has been used extensively to map regional changes in brain activity. The signal used by both techniques is based on changes in local circulation and metabolism (brain work). Our understanding of the cell biology of these changes has progressed greatly in the past decade. New insights have emerged on the role of astrocytes in signal transduction as has an appreciation of the unique contribution of aerobic glycolysis to brain energy metabolism. Likewise our understanding of the neurophysiologic processes responsible for imaging signals has progressed from an assumption that spiking activity (output) of neurons is most relevant to one focused on their input. Finally, neuroimaging, with its unique metabolic perspective, has alerted us to the ongoing and costly intrinsic activity within brain systems that most likely represents the largest fraction of the brain's functional activity.
@article{raichle_brain_2006,
	title = {Brain work and brain imaging},
	volume = {29},
	issn = {0147-006X},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/16776593},
	doi = {10.1146/annurev.neuro.29.051605.112819},
	abstract = {Functional brain imaging with positron emission tomography and magnetic resonance imaging has been used extensively to map regional changes in brain activity. The signal used by both techniques is based on changes in local circulation and metabolism (brain work). Our understanding of the cell biology of these changes has progressed greatly in the past decade. New insights have emerged on the role of astrocytes in signal transduction as has an appreciation of the unique contribution of aerobic glycolysis to brain energy metabolism. Likewise our understanding of the neurophysiologic processes responsible for imaging signals has progressed from an assumption that spiking activity (output) of neurons is most relevant to one focused on their input. Finally, neuroimaging, with its unique metabolic perspective, has alerted us to the ongoing and costly intrinsic activity within brain systems that most likely represents the largest fraction of the brain's functional activity.},
	urldate = {2010-12-17},
	journal = {Annual Review of Neuroscience},
	author = {Raichle, Marcus E and Mintun, Mark A},
	year = {2006},
	pmid = {16776593},
	pages = {449--476},
	file = {Brain work and brain imaging. [Annu Rev Neurosci. 2006] - PubMed result:/Users/nickb/Zotero/storage/77MQHPV3/16776593.html:text/html;raichle2006.pdf:/Users/nickb/Zotero/storage/8IANQKCA/raichle2006.pdf:application/pdf}
}
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