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Spontaneous neuronal firing patterns in the occipital cortex of developing rats
Author(s) -
Corner M. A.,
Mirmiran M.
Publication year - 1990
Publication title -
international journal of developmental neuroscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.761
H-Index - 88
eISSN - 1873-474X
pISSN - 0736-5748
DOI - 10.1016/0736-5748(90)90037-3
Subject(s) - chloral hydrate , cortex (anatomy) , cerebral cortex , bursting , neuroscience , interval (graph theory) , anesthesia , mathematics , psychology , medicine , combinatorics
Spontaneous action potentials have been recorded in the cerebral cortex of developing rats under chloral hydrate anaesthesia. These “spike‐trains” were subjected to a multivariate analysis of parameters describing different aspects of temporal patterning within each train. Three parameters which reflected clustering of action potentials in, respectively, the range of: (i) milliseconds (the modal interval, derived from the interval histograms); (ii) seconds (the mean “burst period”, i.e. the time elapsing between the onset of successive clusters of relatively short intervals); and (iii) minutes (the coefficient of variation for the number of spikes in consecutive 2 min time bins) showed distinctive developmental patterns.