A few words, kept apart.
Editorial example
A word selected for creative use, not a measured recommendation.
Pairing
Two words placed together for human brainstorming, not an assessment of two cats.
Discrimination
In the cited study, a measured difference in response to recorded utterances under specific conditions.
Habituation
A reduction in response during repeated presentations in an experimental procedure, not a home training target.
Recall
Coming when called, a different claim from a small orienting movement in a playback study.
Registry record
Information maintained by a relevant service or authority, not changed by selecting a word here.