Attentional asymmetries in a visual orienting task are related to temperament
Attentional asymmetries in a visual orienting task are related to temperament
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DOI：
10.1080/02699931.2012.666205
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发表时间：
2012-01-01
影响因子：
2.6
通讯作者：
Bellgrove, Mark A.
中科院分区：
文献类型：
--
作者：
Garner, Kelly G.;Dux, Paul E.;Bellgrove, Mark A.
空间不对称是定向注意力的一个有趣特征。最近的观察表明，这些不对称的方向上的气质的影响。目前尚不清楚这种影响是否普遍适用于视觉定向行为。因此，本研究的目的是探讨气质和空间定向措施作为目标半场的功能之间的关系。一个外源性的线索任务管理92名健康的参与者。使用Carver和白色（1994）行为抑制系统和行为激活系统（BIS/BAS）量表评估气质。在没有信息性空间线索提供的情况下，惩罚敏感性高、奖励敏感性低的个体的定向注意呈现显著的不对称性。这种不对称性是不存在的目标之前的空间线索，无论是有效的或无效的。研究结果支持这样的观点，即个性气质的变化影响视觉定向的空间不对称性，但只有当横向目标之前的非方向性（中性）线索。结果进行了讨论半球的不对称性和多巴胺的活动。
Spatial asymmetries are an intriguing feature of directed attention. Recent observations indicate an influence of temperament upon the direction of these asymmetries. It is unknown whether this influence generalises to visual orienting behaviour. The aim of the current study was therefore to explore the relationship between temperament and measures of spatial orienting as a function of target hemifield. An exogenous cueing task was administered to 92 healthy participants. Temperament was assessed using Carver and White's (1994) Behavioural Inhibition System and Behavioural Activation System (BIS/BAS) scales. Individuals with high sensitivity to punishment and low sensitivity to reward showed a leftward asymmetry of directed attention when there was no informative spatial cue provided. This asymmetry was not present when targets were preceded by spatial cues that were either valid or invalid. The findings support the notion that individual variations in temperament influence spatial asymmetries in visual orienting, but only when lateral targets are preceded by a non-directional (neutral) cue. The results are discussed in terms of hemispheric asymmetries and dopamine activity.