Abstract
A variety of experimental approaches to forebrain dynamics have revealed consistent correlations between signals in single neurones occurring at different times. Some of the temporal correlations involve action potentials separated in time by up to several hundred milliseconds. Abeles (1982) for instance shows such temporal dependencies in three-way correlations of neuronal spike trains. Villa and Abeles (1990) have demonstrated highly consistent temporal patterning amongst simultaneously recorded thalamic neurones. One of their figures, shown below (Figure 1), illustrates the precise dependencies of the firing of one neurone on that of others occurring several hundred milliseconds apart. Wright and Sergejew (1991) carried out cross-correlation between EEG signals at different loci in the cerebral cortex, and derived a propagation velocity for EEG of 0.1–0.29 m/sec. This clearly implies consistent correlation of signals which are temporally separated by quite long intervals (compared with the usual time scale of electrophysiologists).
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© 1994 Springer Science+Business Media New York
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Miller, R. (1994). What is the Contribution of Axonal Conduction Delay to Temporal Structure in Brain Dynamics?. In: Pantev, C., Elbert, T., Lütkenhöner, B. (eds) Oscillatory Event-Related Brain Dynamics. NATO ASI Series, vol 271. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1307-4_6
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DOI: https://doi.org/10.1007/978-1-4899-1307-4_6
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