AI Article Synopsis
- The study investigates the role of lower monocular channels in endogenous orienting of attention, suggesting they may have a functional impact alongside higher cortical structures.
- Using behavioral manipulation and a cue-target detection task, the research found that attention was directed more quickly when both cue and target were presented to the same eye.
- The findings imply that endogenous orienting involves both higher cortical mechanisms and lower monocular regions, indicating a more complex interaction in attention processes.
Article Abstract
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.
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| http://dx.doi.org/10.1016/j.neuropsychologia.2018.01.002 | DOI Listing |
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