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Evoked potential mapping of the rostral region by frameless navigation system in Mexican hairless pig
- Source :
-
Journal of Neuroscience Methods . Jan2013, Vol. 212 Issue 1, p100-105. 6p. - Publication Year :
- 2013
-
Abstract
- Abstract: There is an increasing need for a pig model for use in functional brain studies, but a system for determining precise stereotactic coordinates has yet to be developed. Thus, we devised a frameless navigation system for stereotactic positioning, and measured coordinates for the rostral region and the primary somatosensory cortex in the pig brain. Raw coordinates for somatic evoked potential recordings were obtained by passive optical tracking. The location was registered to a computed tomographic image in reference to four stable skull landmarks: the upper margin of each auditory meatus, the external occipital protuberance, and the point where the interfrontal suture crosses a line drawn between the two supraorbital foramina (“IF” point). The cortical position with the greatest response in evoked potential was mapped −51.0±4.67mm rostro-caudally, 9.1±1.19mm medio-laterally, and −8.8±0.48mm dorso-ventrally (means±SD; n =3) to the IF point. These results show that frameless registration is useful for coordinate-based evoked-potential mapping of the rostral region of the Mexican hairless pig. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01650270
- Volume :
- 212
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Neuroscience Methods
- Publication Type :
- Academic Journal
- Accession number :
- 83570469
- Full Text :
- https://doi.org/10.1016/j.jneumeth.2012.09.027