AN ANALYTICAL APPROACH TO THE NEURONAL MECHANISMS UNDERLYING THE MEMORY STORAGE IN THE BRAIN. (EXPERIMENTAL STUDY)

Authors

  • Elias Koutsoukos
  • Elias Angelopoulos
  • Anthony Maillis
  • Costas Stefanis

DOI:

https://doi.org/10.47839/ijc.1.1.69

Keywords:

Long term potentiation, EEG, theta rhythm deterministic chaos, non linear dynamical analysis, memory processes

Abstract

In the present in vivo experimental study, the dynamical properties of the electroencephalographic (EEG) activity recorded in the CA1 area and the dentate gyrous of rat hippocampus were investigated prior to the induction and during the maintenance phase of Long Term Potentiation (LTP). Our findings suggest that this form of brain plasticity can be reflected by the complexity of spontaneous EEG activity, as it is expressed by the reduction of the correlation dimension D2, indicates that different functional states of the brain are governed by different degrees of functional complexity.

References

P. Andersen. Participating neurons and mechanisms underlying theta activity in urethanized rabbits, Prog. Brain Res 54 (1980). p. 371-­380.

A. Babloyantz. Measures of Complexity and Chaos. Editor N.B. Abraham A.L. Albano A. Passamente P.E. Rapp. NATO ARW series, Plenum Press, 1989. p. 51-­62.

A. Babloyantz. A. Destexhe. Low dimen­sional chaos in an instance of epilepsy, Proc. Natl. Acad. Sci. USA 83 (1986). p. 3513­-3517.

M. Baudry. G. Lynch. Hippocampalglutamate receptors, Molec. Cell . Biochem 38(1981). p. 5-­18.

J.T. Becker. D.S. Olton. Cognitive mapping and hippocampal function, Neuropsychologia 19 (1982). p. 733-­741.

N.L Desmond. W.B. Levy. Synaptic corre­lates of associative potentiation depression: an ul­trastructural study in the hippocampus, Brain Res 265 (1983). p. 21-­30.

R,M. Douglas. Long lasting synaptic po­tentiation in the rat dentate gyrus following brief high frequency stimulation, Brain Res 126 (1977). p. 361-­365.

W.Freeman. C. Skarda. Spatial EEG pat­terns, non linear analysis and perception: The neosherringtonian view, Brain Research Review 10 (1985). p. 147-­175.

Y. Fugita. T. Sato. Inntracellular records from hippocampal pyramidal cells in rabbit dur­ing theta rhythm activity, J. Neurophysiol. 27 (1984). p. 1011-­1025.

P. Grassberger. I. Procaccia. Measuring the strangeness of strange attractors, Physica 9D (1983). p. 1189-­1208.

E. Koutsoukos. E. Angelopoulos. A. Maillis. C. Stefanis. Dimensionality alterations of the hippocampal electroencephalographic activ­ity following the induction of long­term potentia­tion in rats, Neuroscience Letters 175 (1994). p. 85-­88.

K.S Lee. F.Schottler. M. Oliver. G. Lynch. Brief bursts of high­frequency stimulation produce two types of structural change in the hippocam­pus, J. Neurophysiol 44 (1980). p. 247-­258.

S. Layne. G. Mayer­Kress. J. Holzfuss. Dimensions and entropies in chaotic systems. Edi­tor Mayer ­ Kress G. Springer, Berlin Heidelberg N. York, 1985.

W. Lutzenberger. N. Birbaumer. H. Flor. B. Rockstroh, T. Elbert. Dimensional analysis of the human EEG and intelligence, Neuroscience Letters 143 (1992). p. 10-­14.

R.A. Nicol D.J.A. Wyllie T. Manabe D.J. Perkel. Long term potentiation: A debate of cur­rent issues. Editor P. Ascher A.I. Selverston, MIT Press Cambridge, (1994). p. 189-­202.

J. O’ Keefe. L. Nadel. The hippocampus as a cognitive map, Behavioral and Brain Sciences 2 (1979). p. 478-­533.

D.S.Olton. J.T. Becker. G.E. Handelman. Hippocampal function: Working memory or cog­nitive mapping?, Physiological Psychology 8 (1980). p. 239­-246.

C. Pavlides. Y. Greenstein. M. Grudman. J. Winson. Long term potentiation in the dentategyrus induced preferentially on the positive phase of theta rhythm, Brain Research 439 (1988). p. 383-­387.

J.P. Pijn. J.V. Neerven. A. Noest. F.H. Lopes da Silva. Chaos or noise in EEG signals; depen­dence on s tate and brain si te, Electroengephalography and Clinical Neurophysi­ology 79 (1991). p. 371-­381.

J. Roschke. J.B. Aldenhoff. A non linear approach to brain function: Deterministic chaos and sleep EEG, Sleep 15(2) (1992). p. 95-­101.

F. Takens. Lecture notes in Mathematics Editor D.A. Rand L.S. Young. Springer New York, 1981. p. 365­-381.

T.J. Teyler P. DiScenna. Long term poten­tiation as a candidate mnemonic device, Brain Research Review 7 (1984). p. 15-­28.

T.J. Teyler. P. DiScenna. The topological anatomy of the hippocampus: A clue to its func­tion, Brain Research Bulletin 12 (1984). p. 711­-719.

T.J. Teyler. P. DiScenna. The hippocam­pal memory indexing theory, Behavioral Neuro­ science 100 (1986). p. 147-­154.

C. Vanderwolf . Hippocampal electrical activity and voluntary movement in the rat, Electroencephalogr. Clin. Neurophysiol. 26 (1969). p. 407-­418.

Downloads

Published

2002-10-31

How to Cite

Koutsoukos, E., Angelopoulos, E., Maillis, A., & Stefanis, C. (2002). AN ANALYTICAL APPROACH TO THE NEURONAL MECHANISMS UNDERLYING THE MEMORY STORAGE IN THE BRAIN. (EXPERIMENTAL STUDY). International Journal of Computing, 1(1), 23-28. https://doi.org/10.47839/ijc.1.1.69

Issue

Section

Articles