The effect of interstimulus interval on sequential effects in absolute identification.
The effect of interstimulus interval on sequential effects in absolute identification.
复制标题
刺激间间隔对绝对识别中顺序效应的影响。
DOI：
10.1080/17470210802649285
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Matthews WJ
中科院分区：
文献类型：
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作者：
Matthews WJ
在绝对识别实验中，受试者被要求识别从一小部分在单个物理维度上不同的项目(例如，频率不同的10个音调)中提取的刺激。这些任务中的反应显示出一种惊人的顺序依赖模式：当前反应与紧邻前一个刺激同化，但与序列中更靠后的刺激形成对比。这种模式被不同地解释为记忆中项目的混乱、反应标准的改变或选择性注意的行为，这些解释已经被纳入绝对识别绩效的相互竞争的正式模型。在两个实验中，我们证明了延长试验之间的时间比之前的刺激和两次试验后的刺激都会增加。这种令人惊讶的结果模式很难与顺序依赖源于记忆混乱或标准转移的观点相一致，但与强调选择性注意的描述一致。
In absolute identification experiments, the participant is asked to identify stimuli drawn from a small set of items which differ on a single physical dimension (e.g., 10 tones which vary in frequency). Responses in these tasks show a striking pattern of sequential dependencies: The current response assimilates towards the immediately preceding stimulus but contrasts with the stimuli further back in the sequence. This pattern has been variously interpreted as resulting from confusion of items in memory, shifts in response criteria, or the action of selective attention, and these interpretations have been incorporated into competing formal models of absolute identification performance. In two experiments, we demonstrate that lengthening the time between trials increases contrast to both the previous stimulus and the stimulus two trials back. This surprising pattern of results is difficult to reconcile with the idea that sequential dependencies result from memory confusion or from criterion shifts, but is consistent with an account that emphasizes selective attention.