Figure 2From: Physiological changes in response to apnea impact the timing of motor representations: a preliminary studyPhysical practice and motor imagery durations during breathing and apnea swimming tasks. Error bars represent mean standard error. Only significant differences were graphically represented. PP: Physical Practice. Ɨ: p < .10, *: p < .05, **: p < .01, ***: p < .001.Back to article page