Aberrations of circadian body temperature rhythms in rats with medial preoptic lesions.

The normal amplitude of the circadian rhythm of telemetered body temperature (Tb) in male rats was 2 degrees C (between 36 and 38 degrees C). For several weeks after large medial preoptic lesions Tb cycled from as low as 29 degrees C to as high as 41 degrees C in a single day. With recovery, or in rats with smaller lesions, peak-to-trough Tb amplitudes decreased, ranging between 3 and 5 degrees C for many months, with normal or slightly raised troughs in the light part and grossly higher peaks in the dark part of a 12:12 light-dark cycle.

Is handwriting posture associated with differences in motor control? An analysis of asymmetries in the readiness potential.

Levy and Reid's [1] hypothesis that persons who write using the inverted posture have ipsilateral control of distal limb movements, particularly those involved in handwriting, was tested in three experiments in which asymmetries in the readiness potential (RP) were measured. In the first experiment, each subject executed a self-paced repetitive squeeze. Contralaterally larger RPs were recorded from all subjects, irrespective to handwriting posture.

Absence of heart-rate effects in isolated frog heart irradiated with pulse modulated microwave energy.

Isolated frog hearts were irradiated with pulse modulated microwave energy synchronized with the ECG. No statistically significant or otherwise observable differences were found between the heart rate of irradiated groups and the nonirradiated control group. Experiments were performed to explore the possible effects of currents induced between the recording electrodes.