• infancy;
  • speech perception;
  • method


The purpose of this paper is to present and describe the Conditioned Head Turn procedure, with primary focus on its use as a method for testing infant speech perception. The paper begins with a brief history of the Conditioned Head Turn Procedure followed by a fairly detailed description of how the procedure is currently implemented. We then briefly outline the methods of analysis that are best suited for data obtained with the Conditioned Head Turn procedure. Next discussed are variations in the Conditioned Head Turn procedure when it is used with subjects of different ages. Then, some of the kinds of findings that have been revealed in the area of infant speech perception are presented to give the reader a sense of the range of questions that can be answered using this procedure. Following this, the strengths and limitations of the procedure are discussed frankly. We end with a presentation of new variations to the procedure that have been developed in recent years, and note how these new variations are expanding the range of questions the procedure can address. ©1997 John Wiley & Sons, Ltd.