TY - GEN AU - Smith-Gray,S AU - Koester,L S TI - Defining and observing social signals in deaf and hearing infants SN - 0002-726X PY - 1996///0321 KW - Child Development KW - Deafness KW - Hearing KW - Humans KW - Infant KW - Infant Behavior KW - Mother-Child Relations KW - Videotape Recording N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1353/aad.2012.0349 ER -