Department of Psychology and the Institute of Information Processing and Decision Making (IIPDM), University of Haifa, Israel.
Department of Psychology and the Institute of Information Processing and Decision Making (IIPDM), University of Haifa, Israel.
Neuropsychologia. 2018 Mar;111:1-7. doi: 10.1016/j.neuropsychologia.2018.01.002. Epub 2018 Jan 6.
The literature has long emphasized the role of higher cortical structures in endogenous orienting. Based on evolutionary explanation and previous data, we explored the possibility that lower monocular channels may also have a functional role in endogenous orienting of attention. Sensitive behavioral manipulation was used to probe the contribution of monocularly segregated regions in a simple cue - target detection task. A central spatially informative cue, and its ensuing target, were presented to the same or different eyes at varying cue-target intervals. Results indicated that the onset of endogenous orienting was apparent earlier when the cue and target were presented to the same eye. The data provides converging evidence for the notion that endogenous facilitation is modulated by monocular portions of the visual stream. This, in turn, suggests that higher cortical mechanisms are not exclusively responsible for endogenous orienting, and that a dynamic interaction between higher and lower neural levels, might be involved.
文献长期以来一直强调高级皮质结构在内在定向中的作用。基于进化解释和先前的数据，我们探索了较低的单眼通道在注意力的内在定向中可能也具有功能作用的可能性。敏感的行为操作被用来探测在简单的线索-目标检测任务中单眼分离区域的贡献。中央空间信息线索及其随后的目标在不同的线索-目标间隔呈现给同一只或不同的眼睛。结果表明，当线索和目标呈现给同一只眼睛时，内在定向的开始明显更早。这些数据为这样一种观点提供了一致的证据，即内源性促进作用受到视觉流中单眼部分的调节。这反过来又表明，高级皮质机制并非专门负责内在定向，并且可能涉及高级和低级神经水平之间的动态相互作用。
