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(2009)\n                    <jats:italic>Proc Natl Acad Sci USA<\/jats:italic>\n                    106(20):8356\u20138361] indicated that this is possible, using magnetoencephalography and magnetic resonance spectroscopy. If true, such a correlation would make the gamma peak frequency a useful surrogate marker of cortical excitability for studies investigating clinical populations and\/or the effects of pharmacological agents. However, magnetic resonance spectroscopy does not measure synaptic GABA specifically, and the results from the current study (\n                    <jats:italic>n<\/jats:italic>\n                    = 50) indicate that GABA, as measured with magnetic resonance spectroscopy, does not correlate with gamma peak frequency.\n                  <\/jats:p>","DOI":"10.1073\/pnas.1321072111","type":"journal-article","created":{"date-parts":[[2014,6,10]],"date-time":"2014-06-10T03:46:19Z","timestamp":1402371979000},"page":"9301-9306","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":96,"title":["Resting GABA and glutamate concentrations do not predict visual gamma frequency or amplitude"],"prefix":"10.1073","volume":"111","author":[{"given":"Helena","family":"Cousijn","sequence":"first","affiliation":[{"name":"Department of Psychiatry and"},{"name":"Oxford Centre for Human Brain Activity, Warneford Hospital, University of Oxford, Oxford OX3 7JX, United Kingdom;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saskia","family":"Haegens","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY 10032;"},{"name":"Cognitive Neuroscience and Schizophrenia Program, Nathan Kline Institute, Orangeburg, NY 10962; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"George","family":"Wallis","sequence":"additional","affiliation":[{"name":"Oxford Centre for Human Brain Activity, Warneford Hospital, University of Oxford, Oxford OX3 7JX, United Kingdom;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jamie","family":"Near","sequence":"additional","affiliation":[{"name":"Douglas Mental Health University Institute and Department of Psychiatry, McGill University, Montreal, Canada H4H 1R3"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark G.","family":"Stokes","sequence":"additional","affiliation":[{"name":"Oxford Centre for Human Brain Activity, Warneford Hospital, University of Oxford, Oxford OX3 7JX, United Kingdom;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul J.","family":"Harrison","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna C.","family":"Nobre","sequence":"additional","affiliation":[{"name":"Oxford Centre for Human Brain Activity, Warneford Hospital, University of Oxford, Oxford OX3 7JX, United Kingdom;"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2014,6,9]]},"reference":[{"key":"e_1_3_4_1_2","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1146\/annurev.neuro.051508.135603","article-title":"Neuronal gamma-band synchronization as a fundamental process in cortical computation","volume":"32","author":"Fries P","year":"2009","unstructured":"P Fries, Neuronal gamma-band synchronization as a fundamental process in cortical computation. 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