Callejas Alicia, Lupiáñez Juan, Tudela Pío
Departamento de Psicología Experimental y Fisiología del Comportamiento, Facultad de Psicología, Universidad de Granada, Campus Universitario Cartuja s/n, Granada 18071, Spain.
Brain Cogn. 2004 Apr;54(3):225-7. doi: 10.1016/j.bandc.2004.02.012.
The present investigation was aimed to the study of the three attentional networks (Alerting, Orienting, and Executive Function) and their interactions. A modification of the task developed by Fan, McCandliss, Sommer, Raz, and Posner (2002) was used, in which a cost and benefit paradigm was combined with a flanker task and an alerting signal. We obtained significant interactions as predicted. The alerting network seemed to inhibit the executive function network (a larger flanker-congruency effect was found on trials where an alerting signal had been previously presented). The orienting network influenced the executive function network in a positive way (the flanker effect was smaller for cued than for uncued trials). Finally, alertness increased orienting (the cueing effect was bigger after the alerting signal). This last result, taken together with previous findings, points to an influence in the sense of a faster orienting under alertness, rather than a larger one. These results offer new insight into the functioning of the attentional system.
本研究旨在探讨三种注意网络（警觉、定向和执行功能）及其相互作用。采用了对Fan、McCandliss、Sommer、Raz和Posner（2002年）开发的任务的一种修改形式，其中成本效益范式与侧翼任务和警觉信号相结合。我们获得了如预期的显著相互作用。警觉网络似乎抑制了执行功能网络（在先前呈现警觉信号的试验中发现了更大的侧翼一致性效应）。定向网络以积极的方式影响执行功能网络（提示试验中的侧翼效应比未提示试验中的小）。最后，警觉性提高了定向（警觉信号后提示效应更大）。这一最后的结果与先前的发现一起，表明在警觉状态下存在一种影响，即定向更快而非更大。这些结果为注意系统的功能提供了新的见解。
