Blanc-Gras N, Estève F, Benchetrit G, Gallego J
Laboratoire de Physiologie, Faculté de Médecine de Grenoble, La Tronche, France.
Biol Psychol. 1994 Mar;37(2):147-59. doi: 10.1016/0301-0511(94)90028-0.
Fourteen subjects learned to adjust their breath pattern to two target breaths displayed on a video screen, by using visual feedback, during two sessions 24 h apart. These two targets were respectively the smallest and the largest breaths of a ten-breath sample previously recorded from each subject's resting spontaneous breathing. Performances were significantly better for the large than for the small target breath. This cannot be directly inferred from current knowledge related to the control of movement time and amplitude, but rather it may be inferred from the periodic character of breathing, to the higher mental load during the small breath task, or to the presumably different frequencies of target breaths in the whole span of spontaneous breathing. In the second session, performance on the two targets levelled out as a result of learning.
14名受试者通过视觉反馈，在间隔24小时的两次实验中学会了根据视频屏幕上显示的两个目标呼吸模式来调整自己的呼吸模式。这两个目标分别是每个受试者静息自主呼吸时先前记录的十次呼吸样本中的最小呼吸和最大呼吸。对于大目标呼吸的表现明显优于小目标呼吸。这无法直接从当前与运动时间和幅度控制相关的知识中推断出来，而是可能从呼吸的周期性特征、小呼吸任务中较高的心理负荷或自发呼吸全过程中目标呼吸可能不同的频率推断出来。在第二次实验中，由于学习，对两个目标的表现趋于平稳。
