It proved to be a particularly fertile system on which to study phase transitions.

Heavy political indoctrination was part of the package throughout the cycle, most acutely during a special two-week study phase.

Immediately after or after a time delay, participants are tested in the study phase of the experiment on the word pairs just previously studied.

If during the test phase a participant correctly classifies an old item as old, it falls into the subsequently remembered trial type for the study phase.

After the study phase, when participants are told to remember or to forget subsets of the items, the participants are given a test of all the words presented.