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91.
Perceptual narrowing towards adult faces is a cross‐cultural phenomenon in infancy: a behavioral and near‐infrared spectroscopy study with Japanese infants
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Megumi Kobayashi Viola Macchi Cassia So Kanazawa Masami K. Yamaguchi Ryusuke Kakigi 《Developmental science》2018,21(1)
Recent data showed that, in Caucasian infants, perceptual narrowing occurs for own‐race adult faces between 3 and 9 months of age, possibly as a consequence of the extensive amount of social and perceptual experience accumulated with caregivers and/or other adult individuals of the same race of the caregiver. The neural correlates of this developmental process remain unexplored, and it is currently unknown whether perceptual tuning towards adult faces can be extended to other cultures. To this end, in the current study we tested the ability of 3‐ and 9‐month‐old Japanese infants to discriminate among adult and infant Asian faces in a visual familiarization task (Experiment 1), and compared 9‐month‐olds’ cerebral hemodynamic responses to adult and infant faces as measured by near‐infrared spectroscopy (NIRS) (Experiment 2). Results showed that 3‐month‐olds exhibit above‐chance discrimination of adult and infant faces, whereas 9‐month‐olds discriminate adult faces but not infant faces (Experiment 1). Moreover, adult faces, but not infant faces, induced significant increases in hemodynamic responses in the right temporal areas of 9‐month‐old infants. Overall, our data suggest that perceptual narrowing towards adult faces is a cross‐cultural phenomenon occurring between 3 and 9 months of age, and translates by 9 months of age into a right‐hemispheric specialization in the processing of adult faces. 相似文献
92.
Territorial Conflicts and Japanese Attitudes Towards East Asian Countries: Natural Experiments with Foreigners' Landings on Disputed Islands
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Akira Igarashi 《Political psychology》2018,39(4):977-992
Japan disputes the sovereignty of two islands: Senkaku/Diaoyu with China and Takeshima/Dokdo with South Korea. These disputes have triggered political performances. In August 2012, Chinese activists landed on Senkaku/Diaoyu, and South Korean politicians landed on Takeshima/Dokdo. The group threat theory suggests that these events constitute threats to Japanese citizens, which lead to negative attitudes towards these countries. The theory also expects personal variations in the reactions to the threats, and the empirical findings of the theory predict an improvement in the worsened attitudes immediately after the event. Drawing on a Japanese social survey that was conducted every month for the two years during which these landing events occurred, I tested the effect of the events on Japanese attitudes towards China and South Korea in a natural experimental framework. The results show that the events negatively impacted Japanese attitudes towards both countries. However, contrary to the expectations of the group threat theory, individual variations (i.e., socioeconomic status, media exposure, and political orientation) in the responses to the events are not supported. Additionally, the attitudes do not return to preevent levels for one year. The contradictions between previous studies and this study potentially originate from the importance of the territories. 相似文献
93.
Motonori Yamaguchi Jing Chen Scott Mishler Robert W. Proctor 《Cognition & emotion》2018,32(5):1003-1017
The present study examined the effect of stimulus valence on two levels of selection in the cognitive system, selection of a task-set and selection of a response. In the first experiment, participants performed a spatial compatibility task (pressing left and right keys according to the locations of stimuli) in which stimulus-response mappings were determined by stimulus valence. There was a standard spatial stimulus-response compatibility (SRC) effect for positive stimuli (flowers) and a reversed SRC effect for negative stimuli (spiders), but the same data could be interpreted as showing faster responses when positive and negative stimuli were assigned to compatible and incompatible mappings, respectively, than when the assignment was opposite. Experiment 2 disentangled these interpretations, showing that valence did not influence a spatial SRC effect (Simon effect) when task-set retrieval was unnecessary. Experiments 3 and 4 replaced keypress responses with joystick deflections that afforded approach/avoidance action coding. Stimulus valence modulated the Simon effect (but did not reverse it) when the valence was task-relevant (Experiment 3) as well as when it was task-irrelevant (Experiment 4). Therefore, stimulus valence influences task-set selection and response selection, but the influence on the latter is limited to conditions where responses afford approach/avoidance action coding. 相似文献
94.
The current study investigated the effects of trait worry, a subcomponent of trait anxiety, on the process of updating information in working memory (WM). A leading theory on anxiety and executive functions, attentional control theory (ACT), states that anxiety is not related to WM updating in emotionally neutral situations. Previous research, however, has focused almost exclusively on WM span tasks that primarily emphasised storage, rather than the updating of WM representations. Moreover, few studies have directly examined the effects of trait worry. In this study, 116 subjects performed a WM updating task that required the memorisation of short lists of words and the within-trial removal of some of these items from WM. Results indicated that levels of trait worry were not related to word-span performance, but were related to performance on trials that required subjects to effectively update WM. Moreover, these effects were observed only for trait worry, not for levels of anxious arousal or comorbid levels of dysphoria. These results support the hypothesis that trait worry is related to WM updating performance and thereby extend ACT in new directions. 相似文献
95.
We investigated the perceptual development of motion transparency in 3- to 5-month-old infants. In two experiments we tested a total of 55 infants and examined their preferential looking behaviour. In experiment 1, we presented transparent motion as a target, and uniform motion as a non-target consisting of random-dot motions. We measured the time during which infants looked at the target and non-target stimuli. In experiment 2, we used paired-dot motions (Qian et al, 1994 Journal of Neuroscience 14 7357-7366) as non-targets and also measured target looking time. We calculated the ratio of the target looking time to the total target and no-target looking time. In both experiments we controlled the dot size, speed, the horizontal travel distance of the dots, and the motion pattern of the dots. The results demonstrated that 5-month-old infants showed a statistically significant preference for motion transparency in almost all stimulus conditions, whereas the preference in 3- and 4-month-old infants depended on stimulus conditions. These results suggest that the sensitivity to motion transparency was robust in 5-month-olds, but not in 3- and 4-month-olds. 相似文献
96.
Greater attention problems during childhood predict poorer executive functioning in late adolescence 总被引:1,自引:0,他引:1
Friedman NP Haberstick BC Willcutt EG Miyake A Young SE Corley RP Hewitt JK 《Psychological science》2007,18(10):893-900
Attention problems (behavior problems including inattention, disorganization, impulsivity, and hyperactivity) are widely thought to reflect deficits in executive functions (EFs). However, it is unclear whether attention problems differentially relate to distinct EFs and how developmental stability and change predict levels of EFs in late adolescence. We investigated, in an unselected sample, how teacher-rated attention problems from ages 7 to 14 years related to three correlated but separable EFs, measured as latent variables at age 17. Attention problems at all ages significantly predicted later levels of response inhibition and working memory updating, and to some extent set shifting; the relation to inhibiting was stronger than the relations to the other EFs or IQ. Growth models indicated that attention problems were quite stable in this age range, and it was the initial levels of problems, rather than their changes across time, that predicted later EFs. These results support the hypothesis that attention problems primarily reflect difficulties with response inhibition. 相似文献
97.
Mariko Yamaguchi Valerie A. Kuhlmeier Karen Wynn Kristy VanMarle 《Developmental science》2009,12(5):746-752
Research examining the development of social cognition has largely been divided into two areas: infant perception of intentional agents, and preschoolers’ understanding of others’ mental states and beliefs (theory of mind). Many researchers have suggested that there is continuity in social cognitive development such that the abilities observed in infancy are related to later preschool ability, yet little empirical evidence exists for this claim. Here, we present preliminary evidence that capacities specific to the social domain contribute to performance in social cognition tasks both during infancy and in early childhood. Specifically, looking time patterns in an infant social cognition task correlated with preschool theory of mind; however, no such relationship was found for infants in a nonsocial cognition task. 相似文献
98.
The present study focuses on the relational dynamics between individual and group attributions and examines cultural variations of people's perceptions of self-enhancing and group-enhancing attributions. Middle school students in Japan, Korea and the USA (Hawaii) were asked to read a vignette and to evaluate the stimulus person who makes an internal or external attribution for his personal or team's success. The results revealed that: (i) the self-effacing attributor was perceived as likable by the participants from all three cultures, but as less self-confident by Asian-Americans; and (ii) although Japanese and Koreans share similar cultural backgrounds, they had different preferences for the group-enhancing or group-effacing attributions. The different systems of self-enhancement across cultures are discussed. 相似文献
99.
AbstractWe investigated whether bilateral lower-limb control and leg dominance affect force control ability in 15 healthy young adults (9 males and 6 females, age =26.8?±?4.1 years). Participants performed isometric ankle dorsiflexion force control tasks, matching a visual target (10% of maximal effort) as quickly and precisely as possible in ballistic and tonic tasks. Performance was evaluated using force error, force steadiness, amount of muscle activity of the tibialis anterior, and response time characteristics. Results showed no significant effects of leg dominance during both ballistic and tonic tasks, while bilateral condition resulted in significantly larger error, less force steadiness, compared to unilateral condition, and only during the tonic task. Consequently, bilateral control, specifically in tasks utilizing feedback control (i.e., tonic task) might affect force control ability, possibly because of the interhemispheric inhibition to meet bilateral task complexity and integrate afferent bilateral sensory information from both right and left legs. 相似文献
100.