This study investigated whether and how a person's varied series of lexical categories corresponding to different discriminatory characteristics of the same colors affect his or her perception of colors. In three experiments, Chinese participants were primed to categorize four graduated colors—specifically dark green, light green, light blue, and dark blue—into green and blue; light color and dark color; and dark green, light green, light blue, and dark blue. The participants were then required to complete a visual search task. Reaction times in the visual search task indicated that different lateralized categorical perceptions (CPs) of color corresponded to the various priming situations. These results suggest that all of the lexical categories corresponding to different discriminatory characteristics of the same colors can influence people's perceptions of colors and that color perceptions can be influenced differently by distinct types of lexical categories depending on the context. 相似文献
Driver distraction has become a major concern for transportation safety due to increasing use of infotainment systems in vehicles. To reduce safety risks, it is crucial to understand how fundamental aspects of distracting activities affect driver behavior at different levels of vehicle control. This study used a simulator-based experiment to assess the effects of visual, cognitive and simultaneous distraction on operational (braking, accelerating) and tactical (maneuvering) control of vehicles. Twenty drivers participated in the study and drove in lead-car following or passing scenarios under four distraction conditions: without distraction, with visual distraction, with cognitive distraction, and with simultaneous distraction. Results revealed higher perceived workload for passing than following. Simultaneous distraction was most demanding and also resulted in the greatest steering errors among distraction conditions during both driving tasks. During passing, drivers also appeared to slow down their responses to secondary distraction tasks as workload increased. Visual distraction was associated with more off-road glances (to an in-vehicle device) and resulted in high workload. Longer headway times were also observed under visual distraction, suggesting driver adaptation to the workload. Similarly, cognitive distraction also increased driver workload but this demand did not translate into steering errors as high as for visual distraction. In general, findings indicate that tactical control of a vehicle demands more workload than operational control. Visual and cognitive distractions both increase driver workload, but they influence vehicle control and gaze behavior in different ways. 相似文献
The migration of parents or children may bring risks to children’s academic performance, but intergenerational effects on the academic performance of migrant workers’ children have been underexplored. This study aims to investigate how grandparents’ socioeconomic status (G1) and parents’ proximal and distal socioeconomic status (G2) influence the academic performance of migrant workers’ children (G3) and the corresponding impacts on the academic performance of migrant and left-behind children. The data used in this study were collected from a survey of 2017 migrant workers conducted in 13 districts and cities of 7 provinces of China in 2014. The results of ordered logistic regression models indicate that G1 grandparent socioeconomic status is positively associated with G2 academic performance and education level. Similarly, G2 parental academic performance and education level are positively linked to G3 academic performance. Parental distal academic performance and education level play an important role in G3 academic performance, but grandparents’ socioeconomic status is not significantly associated with G3 academic performance while controlling for both G1 and G2 variables. In addition, the influence of grandparents’ and parents’ socioeconomic status differs between migrant and left-behind children. Grandparent and parental occupation status only have a significant impact on left-behind children. The educational reproduction of migrant workers’ children has different logics among migrant and left-behind children. Further policies and social services are required to improve the development of migrant workers’ children.
Journal of Psycholinguistic Research - The current study investigated the mechanism of language switching in unbalanced visual unimodal bilinguals as well as balanced and unbalanced bimodal... 相似文献
The present study used the event‐related potential technique to investigate the nature of linguistic effect on color perception. Four types of stimuli based on hue differences between a target color and a preceding color were used: zero hue step within‐category color (0‐WC); one hue step within‐category color (1‐WC); one hue step between‐category color (1‐BC); and two hue step between‐category color (2‐BC). The ERP results showed no significant effect of stimulus type in the 100‐200 ms time window. However, in the 200–350 ms time window, ERP responses to 1‐WC target color overlapped with that to 0‐WC target color for right visual field (RVF) but not left visual field (LVF) presentation. For the 1‐BC condition, ERP amplitudes were comparable in the two visual fields, both being significantly different from the 0‐WC condition. The 2‐BC condition showed the same pattern as the 1‐BC condition. These results suggest that the categorical perception of color in RVF is due to linguistic suppression on within‐category color discrimination but not between‐category color enhancement, and that the effect is independent of early perceptual processes. 相似文献