Corrigendum to “Evaluating the Importance of the Carotid Chemoreceptors in Controlling Breathing during Exercise in Man”

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In the paper titled “Evaluating the Importance of the Carotid Chemoreceptors in Controlling Breathing during Exercise in Man,” please note that in Figure (a) the top scale should read as follows: Equivalent altitude (k ft) calculated by Dripps (and not km).

(a)

(b)

Figure 4 

(a) Relative insensitivity of breathing at rest to artificially lowering PO₂ in Man. Minute ventilation (± se solid bars, ± sd open bars) in normal subjects as inspired oxygen is artificially lowered (strictly hypocapnic hypoxia exists once hyperventilation occurs). Equivalent PaO₂ points are aligned on the FiO₂ scale, with PaO₂ estimated before hyperventilation occurs using the alveolar gas equation (assuming 760 mmHg barometric pressure, RQ = 0.8, PaO₂ = PAO₂, and PaCO₂ = PACO₂), and the point afterwards is estimated based on dynamic forcing experiments in isocapnia (courtesy of Dr. G. A. Balanos). Reproduced with permission from Dripps et al., . (b) Sensitivity of breathing at rest to artificially raising PaCO₂ in Man. Minute ventilation and PaCO₂ (femoral) in 8 healthy men while inhaling 0–6% CO₂ in air at atmospheric pressure (mean slope is 2.5 L·min⁻¹ mmHg⁻¹ artificial PaCO₂ rise). Reproduced with permission from Lambertsen et al. .