Hine Kyoko, Saito Riku, Nakauchi Shigeki
Department of Computer Science and Engineering, Toyohashi University of Technology, Toyohashi, Japan.
Q J Exp Psychol (Hove). 2025 Jun;78(6):1139-1147. doi: 10.1177/17470218241266795. Epub 2024 Jul 31.
Our cognitive processing is flexible and affected by global/local dominance in prior cognitive tasks. Similar to cognitive processing, perceptual processing, especially colour perception related to global/local processing, may be affected by prior global/local dominance; however, this possibility has not yet been assessed. Here, we examined whether prior tasks involving global/local processing influenced colour perception related to global/local processing. As colour perception is related to global/local processing, we focused on perceived colour transparency, in which a transparent layer is perceived in front of a background layer, even though these stimuli are physically in the same layer. When viewing the colour transparency stimulus, we expected that the perceived colour of a specific region, when focusing on only the local region, would differ from that when focusing on the whole image. In our study, the participants completed a global or local Navon task, followed by a colour-matching task that assessed how they saw colours using colour transparency stimuli. The degree of optical illusion (i.e., perceived colour transparency) after the global Navon task was greater than that after the local Navon task. Thus, prior global/local processing, a flexible mode of cognitive processing, influenced colour perception. This study provides new insight into perceptual flexibility, especially in colour perception.
我们的认知加工具有灵活性，并受到先前认知任务中整体/局部优势的影响。与认知加工类似，知觉加工，尤其是与整体/局部加工相关的颜色知觉，可能会受到先前整体/局部优势的影响；然而，这种可能性尚未得到评估。在此，我们研究了涉及整体/局部加工的先前任务是否会影响与整体/局部加工相关的颜色知觉。由于颜色知觉与整体/局部加工相关，我们聚焦于感知到的颜色透明度，即在背景层前方能感知到一个透明层，即便这些刺激在物理上处于同一层。在观看颜色透明度刺激时，我们预期，当仅聚焦于局部区域时，特定区域的感知颜色会与聚焦于整个图像时有所不同。在我们的研究中，参与者完成了一个整体或局部的纳冯任务，随后进行一个颜色匹配任务，该任务使用颜色透明度刺激来评估他们如何看待颜色。整体纳冯任务后的视错觉程度（即感知到的颜色透明度）大于局部纳冯任务后的视错觉程度。因此，先前的整体/局部加工，一种灵活的认知加工模式，影响了颜色知觉。这项研究为知觉灵活性，尤其是颜色知觉方面，提供了新的见解。
