Figure 2.
Comparisons of heart rate oscillatory activity during pre-intervention rest vs. training sessions in the two conditions
Notes. A-B: Participants received similar motivating background explanations for both conditions; C-D: Example heart rate over time during pre-intervention rest vs. home biofeedback training for an Osc+ (C) vs. an Osc- participant (D); E-F: Autoregressive (AR) spectrum shows large within-condition differences between heart rate oscillatory power during pre-intervention rest vs. home biofeedback training, for Osc+ condition (E) but not Osc- (F) condition. Note that training data in e-f reflect an average across many sessions in participants’ homes (training session N = 5437), whereas pre-intervention resting-state heart rate was measured in one session per participant in the lab.