Relationships Between the Responses of Visual Units, EEGs and Slow Potential Shifts in the Optic Tectum of the Toad

  • Peter R. Laming
Part of the NATO Advanced Science Institutes Series book series (NSSA, volume 56)


Recent investigations into the slow, sometimes rhythmic oscillations seen in extracellularly recorded EEGs have attributed them to oscillations in neuronal membrane potentials (Elul, 1972). Evidence has largely come from simultaneous intracellular recording of membrane potential and grossly recorded EEGs (Fujita and Sato, 1964; Elul, 1964, 1968). Elul (1972) suggests that regular EEG waves, especially of high amplitude, represent synchronous oscillations of potential in many neurons. Although EEG waves of this type may not be a result of summation of action potentials, several workers have related neuronal activity to particular stages of the EEG cycle (Verzeano, 1972; Creutzfeldt et al., 1965; Frost and Gol, 1966; Fox and Norman, 1968). Few of these have considered a possible adaptive function for this relationship, however.


Optic Tectum Bufo Bufo Visual Unit Behavioral Arousal Neuronal Membrane Potential 
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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • Peter R. Laming
    • 1
  1. 1.Department of ZoologyQueen’s UniversityBelfastNorthern Ireland

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