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Figure 2. A raw tracing of tongue pressure and vertical movement of the jaw in total sequence of recording (A), and a representative cycle in the late stage of mastication (B), from which coordination of the tongue and jaw movements was analyzed. In the raw tracing of vertical jaw movement (A), an elongation of the closing phase in the first cycle of the early stage and the last cycle of the late stage of mastication, and a decrease of jaw opening in the eighth cycle of the late stage of mastication were seen (arrows).