Testing the behavioral interaction and integration of attentional networks.
Testing the behavioral interaction and integration of attentional networks.
复制标题
DOI：
10.1016/j.bandc.2009.02.002
复制
发表时间：
2009-07
影响因子：
2.5
通讯作者：
Posner, Michael I.
中科院分区：
文献类型：
--
作者：
Fan, Jin;Gu, Xiaosi;Guise, Kevin G.;Liu, Xun;Fossella, John;Wang, Hongbin;Posner, Michael I.
当前注意力的一种概念将其细分为警报、定向和执行控制功能。警报描述了积极地维持警报状态并阶段性地响应警报信号的功能。自动和自愿定向涉及在多种感官输入中选择信息。执行控制描述了一组更复杂的操作，包括监视和解决冲突以控制思想或行为。越来越多的证据表明，每种功能似乎都受到大脑中解剖学上不同的网络的支持，并受到各种神经调节系统的不同神经支配，从而支持了这种注意力理论。尽管许多研究致力于了解这些网络在健康和疾病状态下的功能分离，但这些网络之间的相互作用和整合仍不清楚。在这项研究中，我们的目的是使用修订后的注意力网络测试（ANT-R）以及提示目标间隔和提示有效性操作来描述健康成年志愿者可能的行为相互作用和整合。我们发现，虽然警报提高了整体响应速度，但在某些情况下它会对执行控制产生负面影响。有效的定向线索可以增强执行控制克服冲突的能力，但无效的线索会削弱执行控制的能力。结果支持这些大脑网络的功能整合和相互作用的假设。
One current conceptualization of attention subdivides it into functions of alerting, orienting, and executive control. Alerting describes the function of tonically maintaining the alert state and phasically responding to a warning signal. Automatic and voluntary orienting are involved in the selection of information among multiple sensory inputs. Executive control describes a set of more complex operations that includes monitoring and resolving conflicts in order to control thoughts or behaviors. Converging evidence supports this theory of attention by showing that each function appears to be subserved by anatomically distinct networks in the brain and differentially innervated by various neuromodulatory systems. Although much research has been dedicated to understanding the functional separation of these networks in both healthy and disease states, the interaction and integration among these networks still remain unclear. In this study, we aimed to characterize possible behavioral interaction and integration in healthy adult volunteers using a revised attentional network test (ANT-R) with cue-target interval and cue validity manipulations. We found that whereas alerting improves overall response speed, it exerts negative influence on executive control under certain conditions. A valid orienting cue enhances but an invalid cue diminishes the ability of executive control to overcome conflict. The results support the hypothesis of functional integration and interaction of these brain networks.
登录
查看更多内容
影响因子：
2
作者：
Callejas, A;Lupiàñez, J;Tudela, P
通讯作者：
Tudela, P
影响因子：
3.4
作者：
Coull, JT;Sahakian, BJ;Hodges, JR
通讯作者：
Hodges, JR
影响因子：
5.3
作者：
Pochon, Jean-Baptiste;Riis, Jason;Cohen, Jonathan D.
通讯作者：
Cohen, Jonathan D.
影响因子：
--
作者：
Benes, FM
通讯作者：
Benes, FM
影响因子：
25
作者：
Corbetta, M;Kincade, JM;Shulman, GL
通讯作者：
Shulman, GL