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. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: Ann Otol Rhinol Laryngol. 2010 Jun;119(6):369–376. doi: 10.1177/000348941011900602

Figure 2.

Figure 2

Spatiotemporal plots of neutral (left), head turn (middle), and chin tuck (right) swallows from one subject. Catheter position is on the y-axis, time is on the x-axis, and pressure is indicated by the color scale. A – velopharyngeal pressure; B – tongue base pressure; C – pre-swallow UES pressure peak; D – UES relaxation pressure; E – post-swallow UES pressure peak; (UES opening time is the time duration between D and E); F – increased duration of velopharyngeal pressure above baseline during head turn; G – decreased pre-swallow UES pressure during head turn; H – further subatmospheric UES relaxation pressure during head turn; I – increased duration of velopharyngeal pressure above baseline during chin tuck; J – decreased post-swallow UES pressure peak during chin tuck.