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Recent MRI\u2010based studies have shown that brain maturation is accompanied by clear structural changes in both gray and white matter, yet the correspondence of these changes to brain function is unclear. The objective of this study was to relate visual cortex (V1) \u03b3\u2010band responses to age\u2010related structural change. We evaluated MEG measured \u03b3\u2010band responses to contrast gratings stimuli and structural MRIs from participants observed from two separate research centers (MEG lab at CUBRIC, Cardiff University, UK, and the Lurie Family Foundations MEG Imaging Center, (CHOP) at the Children's Hospital of Philadelphia). Pooled participant data (<jats:italic>N<\/jats:italic> = 59) ranged in age from 8.7 to 45.3 years. We assessed linear associations between age and MEG \u03b3\u2010band frequency and amplitude, as well as between age and MRI volumetric parameters of the occipital lobe. Our MEG findings revealed a significant negative correlation for gamma band frequency versus age. Volumetric brain analysis from the occipital lobe also revealed significant negative correlations between age and the cortical thickness of pericalcarine and cuneus areas. Our functional MEG and structural MRI findings shows regionally specific changes due to maturation and may thus be informative for understanding physiological processes of neural development, maturation, and age\u2010related decline. In addition, this study represents (to our knowledge), the first published demonstration of multicenter data sharing across MEG centers. Hum Brain Mapp 33:2035\u20132046, 2012. \u00a9 2011 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/hbm.21339","type":"journal-article","created":{"date-parts":[[2011,7,18]],"date-time":"2011-07-18T17:22:54Z","timestamp":1311009774000},"page":"2035-2046","source":"Crossref","is-referenced-by-count":84,"title":["Functional and structural correlates of the aging brain: Relating visual cortex (V1) gamma band responses to age\u2010related structural change"],"prefix":"10.1002","volume":"33","author":[{"given":"William","family":"Gaetz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy P.L.","family":"Roberts","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krish D.","family":"Singh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suresh D.","family":"Muthukumaraswamy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,7,18]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1460-9568.2004.03495.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-3806(02)00534-5"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/hbm.10072"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1001\/archpsyc.58.5.461"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1001\/archneur.60.3.393"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.5228-04.2006"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1001\/archpsyc.1994.03950060041004"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/ana.410340511"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.18-16-06395.1998"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2008.04.178"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.216.3.r00au37672"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1162\/jocn.1993.5.2.162"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1006\/nimg.1998.0395"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/ana.410040410"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2006.01.021"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.4426-09.2009"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-0173(03)00178-4"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.200033797"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1006\/nimg.1998.0396"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1109\/42.906426"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0896-6273(02)00569-X"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2004.07.016"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1038\/npp.2008.104"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.neuro.051508.135603"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuron.2008.04.020"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1055465"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0304-3940(03)00108-3"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2010.01.077"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2010.12.077"},{"key":"e_1_2_7_31_1","first-page":"1327","article-title":"Age\u2010related total gray matter and white matter changes in normal adult brain. 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