title: EEG as a measure of developmental changes in the chicken brain.
abstract: Scalp-applied recording electrodes were used to monitor changes in basal EEG patterns in chickens during posthatch development. Frequency spectra produced by Fast Fourier Transform show a biphasic morphology in all chickens with one peak at about 6 Hz and another at 26 Hz. Changes in the lower frequency band show progressive development and provide a possible index of brain development. Both amplitude and dominant frequency of the spectra decrease between Weeks 3 and 8 posthatch, reaching adult levels between Weeks 5 and 7. These results suggest that modifications of basal EEG reflect the widespread functional changes in neuronal circuits occurring in chicken during the "synapse maturation" period between 3 and 8 weeks' posthatch.
authors.affiliation: Department of Psychology, Faculty of Science and Mathematics, University of Newcastle, New South Wales, Australia.
authors.forename: M
authors.initials: M
authors.lastname: Hunter
authors.forename: M
authors.initials: M
authors.lastname: Battilana
authors.forename: T
authors.initials: T
authors.lastname: Bragg
authors.forename: J A
authors.initials: JA
authors.lastname: Rostas
mesh_terms: D000367:Age Factors; D000818:Animals; D001921:Brain / Q000254:growth & development* / Q000502:physiology; D002645:Chickens / Q000254:growth & development*; D004569:Electroencephalography; D005583:Fourier Analysis; D009415:Nerve Net / Q000502:physiology; D012815:Signal Processing, Computer-Assisted; D009435:Synaptic Transmission / Q000502:physiology