Effects of spatial attention on motion discrimination are greater in the left than right visual field.

Effects of spatial attention on motion discrimination are greater in the left than right visual field.
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DOI:
10.1016/j.visres.2011.10.004
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发表时间:
2012-01-01
期刊:
影响因子:
1.8
通讯作者:
Dobkins, Karen R.
Dobkins, Karen R.
中科院分区:
心理学3区
文献类型:
--
作者:
Bosworth, Rain G.;Petrich, Jennifer A. F.;Dobkins, Karen R.

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为了研究左视野(LVF)和右视野(RVF)之间的空间注意的影响的差异,我们采用了一个完整的/不良的注意范式,使用刺激LVF与RVF。此外,为了研究背侧和背侧处理流之间的空间注意效应的差异,我们分别获得了运动阈值(运动相干阈值和精细方向辨别阈值)和方向阈值。这项研究的结果表明,注意力的方向任务的影响可以忽略不计,无论是在LVF或RVF。相比之下,对于这两个运动任务,有一个显着的效果,注意力在左心室,但不是在右心室纤维。这些数据提供了心理物理学的证据,空间注意力在左心室/右半球,特别是在背流的运动处理的更大的影响。
In order to investigate differences in the effects of spatial attention between the left visual field (LVF) and the right visual field (RVF), we employed a full/poor attention paradigm using stimuli presented in the LVF vs. RVF. In addition, to investigate differences in the effects of spatial attention between the Dorsal and Ventral processing streams, we obtained motion thresholds (motion coherence thresholds and fine direction discrimination thresholds) and orientation thresholds, respectively. The results of this study showed negligible effects of attention on the orientation task, in either the LVF or RVF. In contrast, for both motion tasks, there was a significant effect of attention in the LVF, but not in the RVF. These data provide psychophysical evidence for greater effects of spatial attention in the LVF/right hemisphere, specifically, for motion processing in the Dorsal stream.
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发表时间: 2001-05-01
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