Respiratory Changes in Response to Cognitive Load: A Systematic Review

Figure 1

Sample weighted means of Cohen’s for each respiratory parameter considering all studies that provided the required descriptives to compute standardized mean differences. The respective number of studies as well as total sample size and average sample size are displayed in the column below each parameter (RR: respiratory rate; TV: tidal volume; MV: minute ventilation; : expiratory volume; SR: sigh rate; CV: coefficient of variation; AR: autocorrelation; petCO₂: partial pressure of end-tidal carbon dioxide; VO₂: oxygen consumption; VCO₂: carbon dioxide production).