ABSTRACT
The main task of this chapter is to find a correlation between the transfer of information at the neuronal level and event-related potentials (ERPs) which are recorded during this process of information transfer. The specific task to be accomplished here is to suggest some approach to ERPs that can be useful in explaining the correlation between these electrical events and neuronal responses as related to the orienting response (OR). There are two main hypotheses about ERPs. One refers mainly to the problem of postsynaptic potentials. The ERP is regarded as a result of summation of excitatory postsynaptic potentials and inhibitory postsynaptic potentials. However, there is another theory of generation of ERPs, which is related to neuronal-glial interaction. This hypothesis was used mainly with respect to steady potentials in the brain, and to expectancy waves. An analysis of short-lasting evoked potentials (EPs) is less evident in this approach, and
this is the main obstacle in the way of analyzing the correlations between the neuronal and ERP activity. How can the relationship between glial cells, neurons, and ERPs be conceptualized? Schematically, this can be represented in the following way (Figs. 7.1a and 7.1b).
