The article explains the role of feedback and biofeedback in speech therapy; identifies speech parameters that can be modeled by current systems (e.g., pitch, intensity, voice quality, and articulatory accuracy); and describes selected microcomputer-based speech production biofeedback systems that are available. An appendix provides sources. (DB)

Describes two demonstration experiments. Outlines a demonstration of the general principle of positive and negative feedback and the influence of time delays in feedback circuits. Elucidates the principle of negative feedback with a model of the iris of the eye. Emphasizes the importance of feedback in biological systems. (CW)

Recent discoveries about the whole brain seem to call for a holistic approach to learning, one in which educators would teach the whole person, including physical and emotional states as well as cognitive abilities. Three holistic techniques are particularly relevant to education: (1) biofeedback; (2) yoga; and (3) the Lozanov method. Biofeedback…