• Korean Journal of Child Studies
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• v.24 no.4
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• pp.15-27
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• 2003

The subjects were individually presented with the Maxi-doll task to examine false belief and with the flower-star (Stroop-like day-night) test to examine inhibitory control skill. In the $1^{st}$ session, the subjects were tested with both the Maxi tesk and the flower-star test. Three days later, subjects were retested with the Maxi task, including an inhibitory cue. Data were analyzed by 3-way ANOVA, age(2) $\times$ inhibitory level(2) $\times$ task type(Maxi-task or Maxi-including cue). All the main effects were significant and the interaction effect between inhibitory level and task type was also significant. Thus, their understanding of the mind and inhibitory control skill both influence children's performance on a typical false belief task.

• Korean Journal of Child Studies
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• v.36 no.5
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• pp.135-153
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• 2015

The purpose of this study was to investigate false belief understanding and justification reasoning according to information of reality amongst children aged 3, 4 and 5. Children aged 3 to 5 years (N = 176) participated in this study. Each child was interviewed individually and responded to questions designed to measure his/her false belief understanding. Every child responded to the false belief task under two different information conditions of reality(reality known vs reality unknown). For more specific analysis, children's reasoning responses were also recorded. The major findings of this study are as follows. Children could understand false belief more easily under reality unknown conditions. Specifically, the influences of information conditions were crucial to 3-year-olds but not to 4- and 5-year-olds. Although 3 year olds were able to avoid the systematical errors inherent in the false belief task, they still did not understand the false belief itself. This study provides specific aspects of false belief understanding and its relevance to general changes in cognitive development.

• Korean Journal of Child Studies
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• v.23 no.4
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• pp.1-20
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• 2002

The subjects of this study of the development of concepts of pretense and of false beliefs were 168 3-, 4-, 5-, and 6-year-olds. There were 2 significant main effects for age and type of task both for pretend and false belief tasks. The older children performed pretend tasks and false belief tasks at a higher level than the younger children. Performance on pretend tasks was higher with alternatives than without them. On false belief tasks, there were differences in performance among the change of location, the change of content and the second order false belief tasks. Correlations between understanding of pretense and false beliefs were relatively high. These results suggest that the relationship between children's understanding of pretense and false belief varied by types of tasks.

• Korean Journal of Cognitive Science
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• v.19 no.4
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• pp.397-417
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• 2008

We applied fMRI to examine brain activation during false-belief task in Korean healthy adults. In the first experiment, brain areas including bilateral precuneus, temoporo-parietal junction, left inferior parietal lobule, posterior cingulate, middle frontal gyrus were found during first -order false-belief task. In the second experiment, the left middle frontal gyrus, medial frontal gyrus and right precuneus, middle frontal gyrus, temoporo-parietal junction were activated during second-order false-belief task. These results are compatible with the suggestions that the ways in which adults understand theory of mind stories are universal.

• Korean Journal of Child Studies
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• v.29 no.1
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• pp.103-113
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• 2008

This study examined the difference in children's performance between two types of task by the number of protagonists and children's implicit understanding of false-belief. The implicit measure by eye gaze was contrasted with children's explicit answers to the experimenter's question about where the protagonist would look for an object. Results showed there was no difference according to the task type by number of protagonists. On false-belief, 2- and 3-year-olds showed low performance compared with 4-year-olds on explicit responses. On implicit responses, 3- and 4-year-olds out-performed 2-year-olds. These results suggest that implicit understanding precedes explicit understanding.

• Korean Journal of Child Studies
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• v.27 no.3
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• pp.255-270
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• 2006

The present study applied the research of Endres(2003) to investigate understandings of theory of mind by 3- and 4-year-olds based on false belief, perspective taking, and intention. Participants were 86 3- and 96 4-year-old children in three kindergartens. Individual interviews were conducted for each task. Results showed that 4-year-olds scored higher than 3-year-olds on all three variables. Both 3- and 4-year-olds scored highest on perspective taking and lowest on intention. These results suggest that children's understandings of the theory of mind are still developing between 3 and 4 years of age and that their understanding of intention develops more slowly than false belief and perspective taking.

• Child Studies in Asia-Pacific Contexts
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• v.4 no.2
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• pp.109-126
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• 2014

The purpose of this study was to investigate Chinese parents' reaction to their children's negative emotions and how these reactions relate to their children's understanding of emotions. Forty-two Chinese children (aged 4) and their parents participated in this study. Coping with Children's Negative Emotion Scale was given to parents to assess their reaction to their children's negative emotions. Children's emotional understanding was assessed using the modified emotional false-belief task and mixed emotion task. The results showed that Chinese parents gave supportive reactions more than non-supportive reactions to their children, and no difference in sex was found. The percentages of correct answers to false-belief task and mixed emotion task were low with no gender difference in both tasks. When age and sex of children were controlled, only fathers' supportive reactions to children's negative emotions significantly explained the variances in the level of children's understanding of emotions in both tasks. That is, children whose fathers showed greater supportive reactions to their negative emotions performed better at both tasks. It was concluded that fathers' supportive reactions to their children's negative emotions are very influential for emotional understanding among 4-year-old children in China.

• Korean Journal of Child Studies
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• v.29 no.6
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• pp.177-191
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• 2008

Prior studies were limited in the comparison of false belief tasks with desire tasks due to lack of consideration of level of executive functions. To compensate for this, executive functions were included in new preference-related and game-related tasks of conflicting desire. These tasks were administered to 246 preschoolers ranging from 2.5 to 4 years of age. Statistical analysis was by one-way ANOVA and repeated measures ANOVA. Results showed significant main effects depending on age and task type. Younger children lacked ability of executive function, such as inhibition and working memory. Older preschoolers averaged better scores on task performance, showing that it is difficult for younger children to control their own desires and select the contradicted view.

• Child Studies in Asia-Pacific Contexts
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• v.3 no.2
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• pp.123-137
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• 2013

Individuals rely on Theory of Mind (ToM) to represent themselves, others, and socio-cultural norms. Distinctive Western and Eastern developmental patterns of ToM have been reported in monocultural children. Relatively little is known about bicultural children, especially those children who grow up in two conflicting and unbalanced cultures. We hypothesized that the development of ToM in these bicultural preschoolers would follow the pattern of the dominant culture. To examine this hypothesis, we recruited English-speaking Chinese Singaporean preschoolers. In Study 1, we tested 3- to 5-year-olds (N = 120) with 5 ToM tasks, including diverse desires, diverse beliefs, knowledge access, and false belief, as well as a vocabulary task. In Study 2, we tested 5-year-olds (N = 30) with a picture-choice version of these ToM tasks. Both studies supported our hypothesis by revealing that the development of ToM in these bicultural children followed the pattern of the dominant culture. Additionally, we found that 5-year-old bicultural children are still developing false belief, and their verbal ability correlated with their ToM.

• International Journal of Advanced Culture Technology
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• v.7 no.1
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• pp.96-102
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• 2019

The purpose of this study was to examine the effects of applying a program to enhance social information processing ability in schizophrenic patients. We confirmed the positive effects of the program on the theories of mind and attribution style, which are the social information elements of patients, and confirmed the effect of decreasing paranoid ideation. We used the theory of mind(hinting task, the false belief task), the attributional style questionnaire(external bias, personal bias), and the paranoia scale to test the effectiveness of the program. Specifically, in theory of mind, hinting task performance was improved(t=4.14, p=.000),. The scores of personal bias(t=-7.9, p=.000) and paranoid ideation(t=-2.98, p=.004) decreased. Further research is needed to verify the effectiveness of meta - cognitive training to enhance social information processing.