We investigated cerebellar electrocortical activity before and after unilateral brain injury in anesthetized rats. Spectral analysis of cerebellar activity was obtained by Fast Fourier Transformation. There was a dominance of delta frequency range, while the wide gamma range presented no more than 5% of the total mean power spectra of cerebellar activity before brain injury. A few minutes after brain injury and within the first 90 minutes, there was a decrease of total mean power spectra and a relative decrease of delta range power to about 30%, some increase of beta range, and an increase of gamma range to 20-25%. Relative increase of gamma range in the cerebellar mean power spectra was still present 120 min after the brain injury, while other changes started to diminish. We suggest that spectral changes within slow and fast (gamma) frequency ranges of cerebellar activity may be indicators of the brain state after acute injury.
Keywords:
mean power spectra / gamma frequency range / cerebellar activity / brain injury
TY - JOUR
AU - Culic, M.
AU - Blanusa, L.M.
AU - Grbic, G.
AU - Spasić, Slađana
AU - Janković, B.
AU - Kalauzi, Aleksandar
PY - 2005
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/147
AB - We investigated cerebellar electrocortical activity before and after unilateral brain injury in anesthetized rats. Spectral analysis of cerebellar activity was obtained by Fast Fourier Transformation. There was a dominance of delta frequency range, while the wide gamma range presented no more than 5% of the total mean power spectra of cerebellar activity before brain injury. A few minutes after brain injury and within the first 90 minutes, there was a decrease of total mean power spectra and a relative decrease of delta range power to about 30%, some increase of beta range, and an increase of gamma range to 20-25%. Relative increase of gamma range in the cerebellar mean power spectra was still present 120 min after the brain injury, while other changes started to diminish. We suggest that spectral changes within slow and fast (gamma) frequency ranges of cerebellar activity may be indicators of the brain state after acute injury.
PB - Nencki Institute of Experimental Biology
T2 - Acta Neurobiologiae Experimentalis
T1 - Spectral analysis of cerebellar activity after acute brain injury in anesthetized rats
EP - 17
IS - 1
SP - 11
VL - 65
UR - https://hdl.handle.net/21.15107/rcub_rimsi_147
ER -
@article{
author = "Culic, M. and Blanusa, L.M. and Grbic, G. and Spasić, Slađana and Janković, B. and Kalauzi, Aleksandar",
year = "2005",
abstract = "We investigated cerebellar electrocortical activity before and after unilateral brain injury in anesthetized rats. Spectral analysis of cerebellar activity was obtained by Fast Fourier Transformation. There was a dominance of delta frequency range, while the wide gamma range presented no more than 5% of the total mean power spectra of cerebellar activity before brain injury. A few minutes after brain injury and within the first 90 minutes, there was a decrease of total mean power spectra and a relative decrease of delta range power to about 30%, some increase of beta range, and an increase of gamma range to 20-25%. Relative increase of gamma range in the cerebellar mean power spectra was still present 120 min after the brain injury, while other changes started to diminish. We suggest that spectral changes within slow and fast (gamma) frequency ranges of cerebellar activity may be indicators of the brain state after acute injury.",
publisher = "Nencki Institute of Experimental Biology",
journal = "Acta Neurobiologiae Experimentalis",
title = "Spectral analysis of cerebellar activity after acute brain injury in anesthetized rats",
pages = "17-11",
number = "1",
volume = "65",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_147"
}
Culic, M., Blanusa, L.M., Grbic, G., Spasić, S., Janković, B.,& Kalauzi, A.. (2005). Spectral analysis of cerebellar activity after acute brain injury in anesthetized rats. in Acta Neurobiologiae Experimentalis
Nencki Institute of Experimental Biology., 65(1), 11-17.
https://hdl.handle.net/21.15107/rcub_rimsi_147
Culic M, Blanusa L, Grbic G, Spasić S, Janković B, Kalauzi A. Spectral analysis of cerebellar activity after acute brain injury in anesthetized rats. in Acta Neurobiologiae Experimentalis. 2005;65(1):11-17.
https://hdl.handle.net/21.15107/rcub_rimsi_147 .
Culic, M., Blanusa, L.M., Grbic, G., Spasić, Slađana, Janković, B., Kalauzi, Aleksandar, "Spectral analysis of cerebellar activity after acute brain injury in anesthetized rats" in Acta Neurobiologiae Experimentalis, 65, no. 1 (2005):11-17,
https://hdl.handle.net/21.15107/rcub_rimsi_147 .
