Modulations among the alerting, orienting and executive control networks
Modulations among the alerting, orienting and executive control networks
复制标题
DOI：
10.1007/s00221-005-2365-z
复制
发表时间：
2005-11-01
影响因子：
2
通讯作者：
Tudela, P
中科院分区：
文献类型：
--
作者：
Callejas, A;Lupiàñez, J;Tudela, P
本文报道了为了研究注意系统而进行的一系列实验。这个系统由三个网络组成，每个网络都专门负责特定的流程。执行控制网络专门负责控制过程，如冲突解决或错误检测；定向网络将处理系统导向输入源，增强其处理能力；警报网络通过维持认知系统中适当的激活水平，为系统的快速反应做好准备。最近，Fan和合作者[J Cogn Neurosci 14(3):340-347, 2002]设计了一个任务来衡量每个网络的效率。我们修改了范的任务来测试网络之间的影响。我们发现，警报网络会抑制执行控制网络，而定向网络则会提高执行控制网络的效率（实验1）。我们还发现警报网络通过加速其时间过程函数来影响定向网络（实验2）。结果在第三个实验中得到了重复，证明了效果随时间、参与者和实验环境的变化是稳定的，并且作为神经心理学评估的潜在重要工具。
This paper reports a series of experiments that were carried out in order to study the attentional system. Three networks make up this system, and each of them specializes in particular processes. The executive control network specializes in control processes, such as conflict resolution or detection of errors; the orienting network directs the processing system to the source of input and enhances its processing; the alerting network prepares the system for a fast response by maintaining an adequate level of activation in the cognitive system. Recently, Fan and collaborators [J Cogn Neurosci 14(3):340-347, 2002] designed a task to measure the efficiency of each network. We modified Fan's task to test the influences among the networks. We found that the executive control network is inhibited by the alerting network, whereas the orienting network raises the efficiency of the executive control network (Experiment 1). We also found that the alerting network influences the orienting network by speeding up its time course function (Experiment 2). Results were replicated in a third experiment, proving the effects to be stable over time, participants and experimental context, and to be potentially important as a tool for neuropsychological assessment.