Crystal Jonathon D, Miller Benjamin J
Department of Psychology, University of Georgia, Athens, GA 30602-3013, USA.
Anim Learn Behav. 2002 Feb;30(1):53-66. doi: 10.3758/bf03192909.
Rats searched for food that was contingent on time and place in an open field. One location was active at a time, the active location moved in a clockwise direction after each reward, and each location was repeated several times on each daily session. When a location was active, the first response after a fixed interval produced food. The intervals associated with each of the four locations were consistently 60, 30, 30 and 60 sec. For independent groups, inspecting an inactive location had no consequence (n = 7) or reduced the amount of food delivered at the active location (n = 6). The rates of inspecting active and inactive locations increased before the associated intervals elapsed, with preferential responding at the active locations. Rates of anticipation at active locations failed to superimpose when plotted as a function of proportional time. Simultaneous temporal and spatial processing contributed to the failure of proportional timing.
大鼠在开放场地中寻找与时间和地点相关的食物。一次只有一个位置是活跃的，每次奖励后活跃位置沿顺时针方向移动，并且每个位置在每天的实验环节中会重复几次。当一个位置处于活跃状态时，在固定间隔后的首次反应会产生食物。与四个位置中的每个位置相关的间隔始终分别为60秒、30秒、30秒和60秒。对于不同的独立组，检查非活跃位置没有任何影响（n = 7），或者会减少活跃位置提供的食物量（n = 6）。在相关间隔过去之前，检查活跃位置和非活跃位置的速率都会增加，且在活跃位置有优先反应。当以比例时间为函数绘制时，活跃位置的预期速率无法叠加。同时进行的时间和空间处理导致了比例计时的失败。
