Collings Raymond D, Eaton Leslie G
State University of New York, Cortland, NY, USA
State University of New York, Cortland, NY, USA.
Percept Mot Skills. 2016 Apr;122(2):395-410. doi: 10.1177/0031512516639800. Epub 2016 Mar 27.
The current study tested the effect of varying target type and target set size during simple detection versions of Posner's exogenous spatial cueing task. The four target conditions consisted of a single letter, a single number, one of four possible letters, or one of four possible numbers. Responses were faster for numbers than for letters, but only when the cue-target lag was short, the target set included more than one potential number, and the cue and target appeared in different locations. These findings suggest that even during detection tasks, responses are influenced by the object features of the target. Methodological implications for spatial cueing studies and other types of visual perception research were discussed.
当前的研究在波斯纳外源性空间线索任务的简单检测版本中测试了不同目标类型和目标集大小的影响。四种目标条件包括一个字母、一个数字、四个可能字母中的一个或四个可能数字中的一个。数字的反应比字母更快，但仅当线索-目标延迟较短、目标集包含不止一个潜在数字且线索和目标出现在不同位置时才会如此。这些发现表明，即使在检测任务中，反应也会受到目标对象特征的影响。讨论了空间线索研究和其他类型视觉感知研究的方法学意义。
