Cross-trial priming in visual search for singleton conjunction targets: Role of repeated target and distractor features
Cross-trial priming in visual search for singleton conjunction targets: Role of repeated target and distractor features
复制标题
DOI：
10.3758/bf03193697
复制
发表时间：
2006-07-01
期刊：
影响因子：
--
通讯作者：
Krummenacher, Joseph
中科院分区：
文献类型：
--
作者：
Geyer, Thomas;Mueller, Hermann J.;Krummenacher, Joseph
Kristjansson，Wang和Nakayama(2002)证明，当目标和分心物特征在连续的试验中重复时，对连接定义的目标的视觉搜索可以大大加快(启动)。通过两个实验来检验目标呈现实验的搜索反应时间(RT)易化是由目标定义特征的重复引起的，还是由分心特征引起的，或者两者兼而有之。这些实验使用了多个有说服力的搜索范式(改编自Kdstjansson等人，2002年)，其中目标和分心因子的特征在连续的实验中彼此独立地变化(即重复)。当目标和干扰物特征同时重复时，RT易化性在数值上最大，但并不显著大于仅重复干扰物特征时的结果。这表明，在联合视觉搜索中，交叉试验启动效应主要来自分心物特征的重复，而不是目标特征的重复。
Kristjansson, Wang, and Nakayama (2002) demonstrated that visual search for conjunctively defined targets can be substantially expedited ("primed") when target and distractor features are repeated on consecutive trials. Two experiments were conducted to examine whether the search response time (RT) facilitation on target-present trials results from repetition of target-defining features, distractor features, or both. The experiments used a multiple corounctive search paradigm (adapted from Kdstjansson et al., 2002), in which the target and distractor features were varied (i.e., repeated) independently of each other across successive trials. The RT facilitation was numerically largest when both target and distractor features were repeated, but not significantly larger than that when only distractor features were repeated. This indicates that cross-trial priming effects in cojunctive visual search result mainly from the repetition of distractor, rather than target, features.