Reuter-Lorenz P A, Fendrich R
Department of Psychology, University of Michigan, Ann Arbor 48104.
Percept Psychophys. 1992 Sep;52(3):336-44. doi: 10.3758/bf03209150.
The costs produced by invalid precues can depend on the spatial relationship between the cued location and the target location. If oculomotor programs mediate attention shifts, then the effect of varying the spatial relation between the cue and target should be the same for covert orienting (indexed by manual responses) and saccadic responses. We found this to be true only for central precues. With central precues, both manual and saccadic costs were greater when cue and target occurred on opposite sides of the vertical meridian than when they occurred on the same side. With peripheral precues, there were no meridian effects in either response condition, but there was a significant dissociation in the pattern of saccadic and manual costs. For manual responses costs were greater when the target was eccentric relative to the cue, whereas for saccades costs were greater when the cue was eccentric to the target. These results provide additional support for the idea that different orienting mechanisms are engaged by central and peripheral precues. They further suggest that the relationship between oculomotor and attentional orienting may depend on the nature of the precue, with the potential for interdependence being greater with central precues.
无效提示所产生的成本可能取决于提示位置与目标位置之间的空间关系。如果眼动程序介导注意力转移，那么改变提示与目标之间的空间关系对隐蔽定向（通过手动反应来索引）和扫视反应的影响应该是相同的。我们发现只有在中央提示的情况下才是如此。对于中央提示，当提示和目标出现在垂直子午线的两侧时，手动和扫视成本都比它们出现在同一侧时更高。对于外周提示，在两种反应条件下均不存在子午线效应，但在扫视成本和手动成本的模式上存在显著分离。对于手动反应，当目标相对于提示偏心时成本更高，而对于扫视，当提示相对于目标偏心时成本更高。这些结果为中央和外周提示采用不同定向机制的观点提供了额外支持。它们进一步表明，眼动定向与注意力定向之间的关系可能取决于提示的性质，中央提示的相互依存潜力更大。
