J Exp Anal Behav. 1979 May;31(3):373-81. doi: 10.1901/jeab.1979.31-373.
Two experiments were performed in which rats had to avoid shock by both pressing and releasing a bar within specified intervals. When the release-shock interval was held constant and the press-shock interval was increased, response rate decreased and bar holding increased. When the press-shock interval was held constant and the release-shock interval was increased, both response rate and bar holding decreased.
进行了两项实验,其中大鼠必须在规定的时间间隔内按压和释放杠杆以避免电击。当释放-电击间隔保持不变而按压-电击间隔增加时,反应速度降低,杠杆保持时间增加。当按压-电击间隔保持不变而释放-电击间隔增加时,反应速度和杠杆保持时间都降低。