It takes two to tango: Suppression of task-irrelevant features requires (spatial) competition

It takes two to tango: Suppression of task-irrelevant features requires (spatial) competition
复制标题

探戈需要两个人:抑制与任务无关的特征需要(空间)竞争

DOI:
10.1016/j.neuroimage.2018.05.073
复制
发表时间:
2018
期刊:
影响因子:
5.7
通讯作者:
N. Brummerloh
N. Brummerloh
中科院分区:
医学1区
文献类型:
--
作者:
Müller;M.M. Gundlach;Forschack;N. Brummerloh

文献摘要

参考文献

被引文献

相似文献

在最近的一项电生理研究中,我们报道了人类早期视皮层对颜色刺激在基于特征的注意中的全局易化和局部抑制。受试者参加了两个中心位置叠加红/蓝随机点运动图(RDK)之一。任务无关的单一RDK在相同的颜色分别呈现在左侧和右侧的周边。被忽略的颜色的抑制只存在于位于中心的RDK,而不是在一个具有相同的颜色在周边。这一结果与在整个视野中主动抑制与任务无关的特征的想法不一致。在本研究中,我们通过在任务无关位置叠加RDK,在外围引入竞争。有了这样的竞争,我们发现抑制的任务无关的颜色在中央和周边位于RDK。结果清楚地表明,抑制任务无关的功能在任务无关的位置需要(空间)竞争性的相互作用,并不是一个内在的神经机制,在基于特征的注意力被发现为全球促进。
In a recent electrophysiological study, we reported on global facilitation but local suppression of color stimuli in feature-based attention in human early visual cortex. Subjects attended to one of two centrally located superimposed red/blue random dot kinematograms (RDKs). Task-irrelevant single RDKs in the same colors were presented in the left and right periphery, respectively. Suppression of the to-be-ignored color was only present in the centrally located RDK but not in the one with the same color in the periphery. This result was at odds with the idea of active suppression of task-irrelevant features across the entire visual field. In the present study, we introduced competition in the periphery by superimposing the RDKs at the task-irrelevant location as well. With such competition, we found suppression of the task-irrelevant color in the centrally and peripherally located RDKs. Results clearly demonstrate that suppression of task-irrelevant features at task-irrelevant locations requires (spatial) competitive interactions and is not an inherent neural mechanism in feature-based attention as was found for global facilitation.
DOI: 10.1073/pnas.1002436107
发表时间: 2010-08-03
影响因子: 11.1
作者:
Andersen, S. K.;Mueller, M. M.
通讯作者: Mueller, M. M.
DOI: 10.1523/jneurosci.5268-14.2015
发表时间: 2015-07-08
影响因子: 5.3
作者:
Andersen, Soren K.;Mueller, Matthias M.;Hillyard, Steven A.
通讯作者: Hillyard, Steven A.
拒绝模板:配置注意力以忽略任务 - iRrelevant功能。
DOI: 10.1037/a0027885
发表时间: 2012-06
影响因子: 2.1
作者:
Arita, Jason T.;Carlisle, Nancy B.;Woodman, Geoffrey F.
通讯作者: Woodman, Geoffrey F.
DOI: 10.1146/annurev.ne.18.030195.001205
发表时间: 1995
影响因子: 13.9
作者:
R. Desimone;J. Duncan
通讯作者: R. Desimone;J. Duncan
DOI: 10.1523/jneurosci.1913-13.2013
发表时间: 2013-11-13
影响因子: 5.3
作者:
Andersen, Soren K.;Hillyard, Steven A.;Mueller, Matthias M.
通讯作者: Mueller, Matthias M.