Time-Place Learning, Circadian Rhythms, and Memory

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Animals tend to associate time of day with places: dogs greet us at our door minutes before our usual arrival time from work; children ask to watch television at the time of their favourite show. My research program seeks to understand how animals, including humans, learn about spatiotemporal regularities and the role of temporal (specifically, circadian) information in learning and memory. To understand how animals learn about events that vary predictably in space and time, I use a paradigm known as Time-Place Learning (TPL). In rats, TPL is demonstrated when rats learn to go to one location in morning sessions and a different location in afternoon sessions for a food reward or to avoid an aversive stimulus. I have also successfully modified this task for use in children.