Ray O S, Bivens L W
Science. 1968 Apr 19;160(3825):330-2. doi: 10.1126/science.160.3825.330.
The intensity of a foot shock may be a determinant of the rate at which an avoidance response becomes resistant to disruption by electroconvulsive shock. Mice were trained, one trial a day, in a passive avoidance learning task, with one of three foot-shock intensities. Electroconvulsive shock was administered at various intervals after each trial. At all foot-shock intensities, electroconvulsive shock given 10 seconds after each training trial was eflective in disrupting learning. Where electroconvulsive shock was given at longer intervals after each trial, those animals learning at low intensities of foot shock showed greater impairment of performance than those learning at high intensities.
足部电击的强度可能是回避反应对电惊厥休克干扰产生抗性的速率的一个决定因素。小鼠每天接受一次训练，在被动回避学习任务中，使用三种足部电击强度之一。每次试验后在不同间隔施加电惊厥休克。在所有足部电击强度下，每次训练试验后10秒给予的电惊厥休克能有效干扰学习。在每次试验后较长间隔给予电惊厥休克时，那些以低强度足部电击学习的动物比以高强度学习的动物表现出更大的行为损伤。
