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The present study was designed to localize this discriminative process in both time and space by means of combined magnetoencephalographic (MEG) and ERP recordings. Discriminative processing led to differential ERP and MEG activity beginning within 150 ms of stimulus onset. Source localization of the combined ERP\/MEG data was performed using anatomical constraints from structural magnetic resonance images. These analyses revealed highly reliable and focused activity in regions of inferior occipital-temporal cortex. These findings indicate that the earliest measurable correlates of discriminative operations in the visual system appear as neural activity in circumscribed regions of the ventral processing stream. <\/jats:p>","DOI":"10.1152\/jn.2002.88.4.2088","type":"journal-article","created":{"date-parts":[[2017,12,21]],"date-time":"2017-12-21T21:14:52Z","timestamp":1513890892000},"page":"2088-2095","source":"Crossref","is-referenced-by-count":189,"title":["Localizing Visual Discrimination Processes in Time and Space"],"prefix":"10.1152","volume":"88","author":[{"given":"Jens-Max","family":"Hopf","sequence":"first","affiliation":[{"name":"Department of Neurology II, Otto-von-Guericke University, D-39120 Magdeburg, Germany;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edward","family":"Vogel","sequence":"additional","affiliation":[{"name":"Department of Psychology, University of Oregon, Eugene, Oregon 97403-1227; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Geoffrey","family":"Woodman","sequence":"additional","affiliation":[{"name":"Department of Psychology, University of Iowa, Iowa City, Iowa 52242-1407"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hans-Jochen","family":"Heinze","sequence":"additional","affiliation":[{"name":"Department of Neurology II, Otto-von-Guericke University, D-39120 Magdeburg, Germany;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven J.","family":"Luck","sequence":"additional","affiliation":[{"name":"Department of Psychology, University of Iowa, Iowa City, Iowa 52242-1407"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"24","reference":[{"key":"B1","doi-asserted-by":"publisher","DOI":"10.1093\/cercor\/4.5.544"},{"key":"B2","doi-asserted-by":"publisher","DOI":"10.1097\/00004691-199401000-00008"},{"key":"B3","doi-asserted-by":"publisher","DOI":"10.1162\/jocn.1996.8.6.551"},{"key":"B4","doi-asserted-by":"publisher","DOI":"10.1038\/10230"},{"key":"B5","doi-asserted-by":"publisher","DOI":"10.1162\/jocn.1996.8.5.387"},{"key":"B6","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-0193(1997)5:4<293::AID-HBM15>3.0.CO;2-F"},{"key":"B7","doi-asserted-by":"publisher","DOI":"10.1126\/science.2360050"},{"key":"B8","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.11-08-02383.1991"},{"key":"B9","doi-asserted-by":"publisher","DOI":"10.1046\/j.1460-9568.1998.00376.x"},{"key":"B10","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8986.1994.tb01035.x"},{"key":"B11","doi-asserted-by":"publisher","DOI":"10.1097\/00001756-199809140-00005"},{"key":"B12","doi-asserted-by":"publisher","DOI":"10.1162\/089892901564234"},{"key":"B13","doi-asserted-by":"publisher","DOI":"10.1109\/10.704867"},{"key":"B14","doi-asserted-by":"publisher","DOI":"10.1097\/00004691-199905000-00006"},{"key":"B15","doi-asserted-by":"publisher","DOI":"10.1016\/S0013-4694(98)00046-7"},{"key":"B16","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.96.6.3314"},{"key":"B17","doi-asserted-by":"publisher","DOI":"10.1098\/rstb.1998.0281"},{"key":"B18","doi-asserted-by":"publisher","DOI":"10.1016\/S0896-6273(00)80713-8"},{"key":"B19","doi-asserted-by":"publisher","DOI":"10.1007\/BF00230699"},{"key":"B20","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8986.1976.tb00116.x"},{"key":"B21","doi-asserted-by":"publisher","DOI":"10.1126\/science.282.5386.108"},{"key":"B22","doi-asserted-by":"publisher","DOI":"10.1152\/jn.1997.77.1.24"},{"key":"B23","doi-asserted-by":"publisher","DOI":"10.3109\/00207459508986105"},{"key":"B24","first-page":"235","volume":"1","author":"Luck SJ","year":"2002","journal-title":"Attention: From Paradigms to Mechanisms. 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