A method for continuous 24 hour cable EEG- and brain temperature-recording in the rat
Kleinlogel, H.; Hausammann, K.F.
Waking and Sleeping 4(1): 77-85
1980
ISSN/ISBN: 0340-0905 PMID: 7395197 Document Number: 162090
A cable technique is described which allows continuous, unsupervised recording of cortical EEG and neck muscle EMG in rats over long periods. In addition, brain temperature is measured with an NTC-thermistor. After suitable adaptation the signals are computed for selected 8 s epochs into Hjorth parameters by means of a Normalised-Slope-Descriptor. These parameters are stored continuously on a digital magnetic tape. Off-line computer analysis of these parameters is used to examine changes in the EEG, EMG and brain temperature during waking and sleeping.