Thomas J R
J Exp Anal Behav. 1979 Sep;32(2):183-9. doi: 10.1901/jeab.1979.32-183.
Pigeons performing on a matching-to-sample procedure were exposed to six fixed-ratio (FR) schedules (FR 1, 5, 10, 20, 40, and 60) of food reinforcement for correct matching responses. During both a correction and a noncorrection procedure without an intertrial interval (ITI), matching accuracy was lower on FR 1 and FR 60 than at intermediate ratios. With the FR 1 schedule, both a 5-sec and a 25-sec ITI resulted in higher matching accuracy than without an ITI; accuracy, with an ITI, was fairly constant for ratios of 1 to 20 but declined at higher ratios. The results suggest that the presence or absence of an ITI in matching to sample may account for inconsistencies obtained in earlier studies of the relationship of matching accuracy to ratio size.
在样本匹配程序中表现的鸽子,针对正确的匹配反应接受了六种固定比率(FR)的食物强化时间表(FR 1、5、10、20、40和60)。在无试次间隔(ITI)的校正和非校正程序中,FR 1和FR 60的匹配准确率低于中间比率时的准确率。采用FR 1时间表时,5秒和25秒的ITI都比无ITI时产生更高的匹配准确率;有ITI时,比率为1至20时准确率相当稳定,但在更高比率时下降。结果表明,样本匹配中ITI的有无可能解释了早期关于匹配准确率与比率大小关系研究中获得的不一致结果。