Question

Linda jingles her keys in front of baby Sam's face and he watches and smiles. Linda continues to bring her keys up and jingle them in front of Sam because he appears to enjoy this game. After a while, though, Sam seems to become bored with the game and no longer focuses on the keys when Linda jingles them. This illustrates the process of

Answer 1

With no multiple choice, my best guess would be “desensitization,” or becoming less emotionally sensitive to something with frequent exposure to that thing.