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. 2019 May 3;10:535. doi: 10.3389/fphys.2019.00535

FIGURE 2.

FIGURE 2

(A) Ratings of dyspnea intensity and dyspnea unpleasantness for the predictable and unpredictable condition on a visual analog scale (0–100); (B) ratings of affective state including valence, arousal and anxiety for the predictable and unpredictable condition on a scale ranging from 1 to 6; (C) ratings of anxiety separately for the condition orders unpredictable- predictable-unpredictable-predictable (UPUP) and predictable-unpredictable-predictable-unpredictable (PUPU) on a scale ranging from 1 to 6. Error bars represent standard errors. ∗p < 0.05.