A method for continuous 24 hour cable EEG- and brain temperature-recording in the rat.
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.
D000818:Animals; D001833:Body Temperature Regulation; D004569:Electroencephalography / Q000295:instrumentation / Q000379:methods*; D004576:Electromyography; D005260:Female; D051381:Rats; D012894:Sleep Stages; D012895:Sleep, REM