{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T08:39:02Z","timestamp":1789979942679,"version":"4.0.1"},"reference-count":50,"publisher":"Wiley","issue":"16","license":[{"start":{"date-parts":[[2014,6,16]],"date-time":"2014-06-16T00:00:00Z","timestamp":1402876800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["EXC1086"],"award-info":[{"award-number":["EXC1086"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002347","name":"Bundesministerium f\u00fcr Bildung und Forschung","doi-asserted-by":"publisher","award":["0316064C"],"award-info":[{"award-number":["0316064C"]}],"id":[{"id":"10.13039\/501100002347","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Comparative Neurology"],"published-print":{"date-parts":[[2014,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Microelectrocorticography (\u00b5ECoG) provides insights into the cortical organization with high temporal and spatial resolution desirable for better understanding of neural information processing. Here we evaluated the use of \u00b5ECoG for detailed cortical recording of somatosensory evoked potentials (SEPs) in an ovine model. The approach to the cortex was planned using an MRI\u2010based 3D model of the sheep's brain. We describe a minimally extended surgical procedure allowing placement of two different \u00b5ECoG grids on the somatosensory cortex. With this small craniotomy, the frontal sinus was kept intact, thus keeping the surgical site sterile and making this approach suitable for chronic implantations. We evaluated the procedure for chronic implantation of an encapsulated \u00b5ECoG recording system. During acute and chronic recordings, significant SEP responses in the triangle between the ansate, diagonal, and coronal sulcus were identified in all animals. Stimulation of the nose, upper lip, lower lip, and chin caused a somatotopic lateral\u2010to\u2010medial, ipsilateral response pattern. With repetitive recordings of SEPs, this somatotopic pattern was reliably recorded for up to 16 weeks. The findings of this study confirm the previously postulated ipsilateral, somatotopic organization of the sheep's sensory cortex. High gamma band activity was spatially most specific in the comparison of different frequency components of the somatosensory evoked response. This study provides a basis for further acute and chronic investigations of the sheep's sensory cortex by characterizing its exact position, its functional properties, and the surgical approach with respect to macroanatomical landmarks. J. Comp. Neurol. 522:3590\u20133608, 2014. \u00a9 2014 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/cne.23631","type":"journal-article","created":{"date-parts":[[2014,5,23]],"date-time":"2014-05-23T04:32:24Z","timestamp":1400819544000},"page":"3590-3608","source":"Crossref","is-referenced-by-count":35,"title":["Mapping of sheep sensory cortex with a novel microelectrocorticography grid"],"prefix":"10.1002","volume":"522","author":[{"given":"Mortimer","family":"Gierthmuehlen","sequence":"first","affiliation":[{"name":"Department of Neurosurgery University Medical Center Freiburg 79106 Freiburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xi","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery University Medical Center Freiburg 79106 Freiburg Germany"},{"name":"Laboratory for Biomedical Microtechnology, Department of Microsystem Engineering (IMTEK) 79110 Freiburg Germany"},{"name":"Epilepsy Center, University Medical Center 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