Summary
In cat, electrobiologieal focal rhythms in the 40 Hz frequency band occur in at least three cortical areas, motor cortex, parietal area 5 a and visual areas 17/18. Concentrating here on the parietal subset of 40 Hz (designated as β), three sets of data are considered: the functional correlates of the β rhythms, showing their close concomitance with focused attention of the animal on a target; the close participation of a thalamic zone, called POm (posterior group pars medialis), which contains cells firing at the β frequency; and the modulatory action of the dopaminergic zone of the ventral tegmental area. These data tend to link together the behavioural correlates of these rhythms, their underlying neurophysiological mechanisms and a brainstem neurochemical system which modulates both the attentive performance and its electrocortical correlates.
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Rougeul-Buser, A. (1994). Electrocortical Rhythms in the 40 Hz Band in Cat: In Search of Their Behavioural Correlates. In: Buzsáki, G., Llinás, R., Singer, W., Berthoz, A., Christen, Y. (eds) Temporal Coding in the Brain. Research and Perspectives in Neurosciences. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-85148-3_6
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DOI: https://doi.org/10.1007/978-3-642-85148-3_6
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