Premium
EEG as a measure of developmental changes in the chicken brain
Author(s) -
Hunter Mick,
Battilana Mellissa,
Bragg Tracey,
Rostas John A. P.
Publication year - 2000
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/(sici)1098-2302(200001)36:1<23::aid-dev3>3.0.co;2-3
Subject(s) - electroencephalography , measure (data warehouse) , psychology , brain activity and meditation , neuroscience , cognitive psychology , audiology , developmental psychology , medicine , computer science , data mining
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. © 2000 John Wiley & Sons, Inc. Dev Psychobiol 36: 23–28, 2000