Measuring fundamental frequencies in local field potentials.

@article{citeulike:2056484, abstract = {Neural processes display rhythmic oscillations in local field potentials; identification of their characteristic frequencies is complicated due to their highly non-stationary nature. A simple technique, combining Fourier transforms and correlation coefficients yields unambiguous determinations of the frequencies without a priori filtering. This procedure also provides quantitative information concerning interactions between frequencies. Fundamental frequencies in local field potential data acquired from the hippocampus, cortex, and striatum from awake, behaving rats were calculated using this technique. Characteristic frequencies identified using this technique from hippocampus and cortex agreed with known oscillations. Application to dorsal striatal local field potentials identified a low-frequency theta component as well as a narrow gamma band oscillation at 50-55 Hz.}, address = {School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA.}, author = {Masimore, B. and Kakalios, J. and Redish, A. D. }, citeulike-article-id = {2056484}, doi = {10.1016/j.jneumeth.2004.03.014}, issn = {0165-0270}, journal = {J Neurosci Methods}, keywords = {analysis, methods, oscillations}, month = {September}, number = {1-2}, pages = {97--105}, posted-at = {2007-12-04 10:10:20}, priority = {2}, title = {Measuring fundamental frequencies in local field potentials.}, url = {http://dx.doi.org/10.1016/j.jneumeth.2004.03.014}, volume = {138}, year = {2004} }

TY - JOUR ID - citeulike:2056484 L3 - citeulike-article-id:2056484 TI - Measuring fundamental frequencies in local field potentials. JF - J Neurosci Methods VL - 138 IS - 1-2 SP - 97 EP - 105 AD - School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA. SN - 0165-0270 N2 - Neural processes display rhythmic oscillations in local field potentials; identification of their characteristic frequencies is complicated due to their highly non-stationary nature. A simple technique, combining Fourier transforms and correlation coefficients yields unambiguous determinations of the frequencies without a priori filtering. This procedure also provides quantitative information concerning interactions between frequencies. Fundamental frequencies in local field potential data acquired from the hippocampus, cortex, and striatum from awake, behaving rats were calculated using this technique. Characteristic frequencies identified using this technique from hippocampus and cortex agreed with known oscillations. Application to dorsal striatal local field potentials identified a low-frequency theta component as well as a narrow gamma band oscillation at 50-55 Hz. KW - analysis KW - methods KW - oscillations AU - Masimore, B AU - Kakalios, J AU - Redish, AD PY - 2004/09/30/ UR - http://dx.doi.org/10.1016/j.jneumeth.2004.03.014 ER -