Relative wavelet energy as a measure of the magnetic fields effects on the neuronal population activity in Morimus funereus (Coleoptera, Cerambycidae) antennal lobe
2014
Authors:
Kesić, SrđanSpasić, Slađana
Stojadinović, Gordana
Petković, Branka
Todorović, Dajana
Contributors
Đurić, DraganJakovljević, Vladimir
Document Type:
Conference object (Published version)
,
© 2014 by the Serbian Physiological Society
Metadata
Show full item recordAbstract:
Based on a wavelet analysis, this study introduces the relative wavelet energy (RWE)
as a new measure for classification of the frequency bands of neuronal population activity
in insects. The RWE is used to explore the effects of static magnetic field (SMF,
2 mT) and extremely low frequency magnetic field (ELF MF, 50 Hz, 2 mT) on longhorn
beetle antennal lobe neuronal activity. To study the influence of SMF and ELF MF on
the neuronal population activity, the experiments were performed on adult longhorn
beetles Morimus funereus (Coleoptera, Cerambycidae). Our study, based on a wavelet
analysis of the local field potentials (LFPs), showed for the first time that the effects of
prolonged and repeated exposure to the ELF MF on the LFPs were irreversible. Compared
to the control, the RWE of 4-8 Hz frequency band was increased after repeatedly
applied sine ELF MF (SnMF)/square ELF MF (SqMF). On the other hand, the RWE of
slower oscillations (1-2 Hz) was significantly decreased after repeated exposures to both
applied ELF MF waveforms. The SqMF decreased the fastest 64-128 Hz frequency
band. However, exposure to the SMF didn't have any effects on the neuronal population
activity. This study, successfully demonstrated new and useful application of the RWE
method for classification of the frequency bands and measuring the effects of SMF and
ELF MF on the neuronal population activity in M. funereus antennal lobe.
Funding / projects:
- The effects of magnetic fields and other environmental stressors on the physiological responses and behavior of different species (RS-MESTD-Basic Research (BR or ON)-173027)
In:
- Đurić D, Jakovljević V, editors. Molecular, Cellular and Integrative Basis of Health and Disease : transdisciplinary approach: abstract book. 3rd Congress of Physiological Sciences of Serbia with International Participation; 2014 Oct 29-31; Belgrade, Serbia. Belgrade: Serbian Physiological Society; 2014. p. 126.