TY - GEN AU - Kaplan,P S AU - Fox,K B AU - Huckeby,E R TI - Faces as reinforcers: effects of pairing condition and facial expression SN - 0012-1630 PY - 1992///0811 KW - Acoustic Stimulation KW - Affect KW - Arousal KW - Association Learning KW - Attention KW - Face KW - Facial Expression KW - Fixation, Ocular KW - Humans KW - Infant, Newborn KW - psychology KW - Reinforcement, Social N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1002/dev.420250407 ER -