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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Dysphagia. 2018 Nov 28;34(5):640–653. doi: 10.1007/s00455-018-9962-z

Figure 3.

Figure 3.

Illustration of offline analysis of swallow rate in LabChart. A large spike in the accelerometer signal (A) indicated laryngeal elevation at swallowing onset. Eprime software (B) signal indicated vibratory onsets and offsets. The square wave of a pulse generator (C) indicated that the trained observer pushed a button when they visually confirmed a swallow. The first derivative of the sum Inductotrace signal (D) flattened to approximately zero on the y axis, indicating apneic periods during swallowing.