反应偏差与刺激持续时间的辨别。
Response bias and the discrimination of stimulus duration.
出版信息
J Exp Anal Behav. 1976 Mar;25(2):243-50. doi: 10.1901/jeab.1976.25-243.
Pigeons discriminated stimulus duration in a psychophysical choice situation. Following presentation of any duration from a set of short duration (11 to 15 sec), responses on a red key were reinforced intermittently. Following presentation of any duration from a set of long durations (16 to 22 sec), responses on a green key were reinforced intermittently. Relative reinforcement rates were manipulated for choice responses across conditions. As relative reinforcement rates were varied, psychometric functions showed shifts in green-key responses at all durations. A signal-detection analysis showed that sensitivity remained roughly constant across conditions while response bias changed as a function of changes in relative reinforcement rate. Relative error rates tended to match relative reinforcement rates.
鸽子在心理物理选择情境中区分刺激持续时间。在呈现一组短持续时间（11 到 15 秒）的任何持续时间后，对红色键的响应间歇性地得到强化。在呈现一组长持续时间（16 到 22 秒）的任何持续时间后，对绿色键的响应间歇性地得到强化。跨条件的选择反应的相对强化率被操纵。随着相对强化率的变化，心理物理函数显示在所有持续时间下绿色键反应的转移。信号检测分析表明，敏感性在整个条件下大致保持不变，而反应偏差随相对强化率的变化而变化。相对误差率倾向于与相对强化率匹配。
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