Electrical Signs of Activity in Assemblies of Neurons: Compound Field Potentials as Objects of Study in Their Own Right
A case is made for the study of evoked and ongoing brain potentials as signs of activity in organized assemblies of neurons. Whereas the study of single unit activity, usually spike activity only, will continue to be a major window onto brain function, it cannot explain or predict much of the compound field potential recorded from assemblies even those with small populations via semimicroelectrodes. We need as many different windows as we can look through; each gives insight on a different set of integrative mechanisms. Evoked and ongoing potentials reveal a number of features and have advantages for a variety of questions not otherwise as readily addressed.
KeywordsAuditory Brainstem Response Ongoing Activity Optic Tectum Contingent Negative Variation Single Unit Activity
Unable to display preview. Download preview PDF.
- 4.Corwin JT, Bullock TH, Schweitzer J: Auditory brainstem response in five vertebrate classes. Electroenceph clin Neurophysiol, in pressGoogle Scholar
- 5.Gerard R: The interaction of neurones. Ohio J Sci 41: 160–172, 1941Google Scholar
- 6.Merzenich MM, Gardi JM, Vivion MC: Non-invasively recorded auditory-evoked responses in animals: some practical uses. IN: NINCDS Handbook of Electrocochleography and Brain Stem Electrical Responses, ed Moore E, NINCDS, Bethesda, 1980Google Scholar
- 8.Nicholson C, Freeman JA: Theory of current source-density analysis and determination of conductivity tensor for anuran cerebellum. J Neurophysiol 38: 356–368, 1975Google Scholar
- 9.Plassmann W: Central projections of the octaval system in the thornback ray Platyrhinoidis triseriata. Neurosci Lett 1983, in pressGoogle Scholar