Neural network based time zone classification allows circadian rhythm analysis

The circadian rhythm modulates memory in animals. However, the relationship between the circadian cycle and brain wave dynamics has not yet been clarified. Beta wave-like oscillations with frequencies in the range of 13–30 Hz can be induced by applying a cholinergic agonist, carbachol (CCh). We estimated the time of day using a neural network with oscillatory parameters. Rats were kept under light...