College of Psychology, Shenzhen University, Shenzhen, Guangdong, China.
Shenzhen Health Development Research Center, Shenzhen, Guangdong, China.
Brain Behav. 2022 Feb;12(2):e2471. doi: 10.1002/brb3.2471. Epub 2022 Jan 8.
Attention selection is considered to be determined by the perceptual load of cognitive tasks and attention resources that are assigned to processing-independent stimuli.
Using visual search paradigm and Schulte grid, the behavioral responses and event-related potential (ERP) of 27 pupils aged 8-11 (12 girls and 15 boys) were recorded. The subjects were asked to search for the numbers 1, 2, and 3 sequentially and locate the number 5 in the case of monochromatic (black) and bicolor (black-red) numbers.
We found that the sequential search task took longer than the location search task (p < .05). Furthermore, both search tasks took longer in two-color conditions than in monochromatic conditions. However, as for sequential search and location search tasks, no significant intra-group difference was found. ERP data showed that there was significant difference between monochromatic and bichromatic conditions in locating search tasks (P2-P4: p < .05; T7: p < .05, T8: p < .05), but there was no significant difference in sequential search tasks.
Our results indicates that red will be interfered when searching for one number, but will not be interfered when searching for three numbers, which is related to the higher perceptual load of sequential search tasks and less attention resources than those used to interfere with stimulus processing.
注意选择被认为取决于认知任务的知觉负载和分配给与处理无关的刺激的注意资源。
使用视觉搜索范式和 Schulte 网格，记录了 27 名 8-11 岁（12 名女孩和 15 名男孩）的小学生的行为反应和事件相关电位（ERP）。要求被试按顺序搜索数字 1、2 和 3，并在单色（黑色）和双色（黑红）数字的情况下找到数字 5。
我们发现，顺序搜索任务比定位搜索任务花费的时间更长（p<0.05）。此外，两种搜索任务在双色条件下都比单色条件下花费的时间更长。然而，对于顺序搜索和定位搜索任务，组内没有发现显著差异。ERP 数据显示，在定位搜索任务中，单色和双色条件之间存在显著差异（P2-P4：p<0.05；T7：p<0.05，T8：p<0.05），但在顺序搜索任务中没有显著差异。
我们的结果表明，在搜索一个数字时，红色会受到干扰，但在搜索三个数字时不会受到干扰，这与顺序搜索任务的较高知觉负载和较少的注意资源有关，这些资源不会干扰刺激处理。
