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  • Computational modeling interpretation underlying elevated risk-taking propensity in non-labor income

    Subjects: Psychology >> Experimental Psychology submitted time 2024-03-13

    Abstract: Abstract:Money source influences risk-taking behaviors. Although studies consistently indicated that individuals demonstrate a higher propensity to make risk investments when utilizing non-labor income as opposed to labor income, explanations as to why non-labor income leads to continuously blow money from non-labor sources into risky investments are scarce. The current study leverages a computational modeling approach to compare the differences in the dynamic risk investment process among individuals endowed with income from different sources (i.e., non-labor income vs labor income) to understand the shaping force of higher risk-taking propensity in individuals with non-labor income. A total of 103 participants were recruited and completed the Balloon Analogue Risk Task (BART) with an equal monetary endowment, either as a token for completion of survey questionnaires (representing labor income) or as a prize from a lucky draw game (representing non-labor income). We found that individuals endowed with non-labor income made more risky investments in the BART compared to those with labor income. With computational modeling, we further identified two key differences in the dynamic risk investment processes between individuals endowed with labor and those with non-labor income. Specifically, individuals endowed with non-labor income had a higher preset expectation for risk-taking and displayed desensitization towards losses during risk investments, in contrast to individuals with labor income. This study sheds light on the fundamental factors contributing to the increased tendency for risky investments with non-labor income, providing new insights into the psychological mechanisms underlying risk-taking behaviors.
     

  • Understanding the Rise of Unique Names: The Emphasis on Uniqueness Matters

    Subjects: Psychology >> Social Psychology submitted time 2023-08-15

    Abstract: Uncommon personal names have become increasingly popular in many countries and cultures over the past decades. However, little is known about the causes. We propose that the emphasis on uniqueness, manifested both as a cultural value at the macro level and as an individual need at the micro level, may account for the widely observed increase in unique-naming practices. We tested these hypotheses in China. Study 1 found that the increasing cultural emphasis on uniqueness (rather than on independence or competition), as a Granger cause, explained the increasing name uniqueness. Study 2 revealed that the increasing individual need for uniqueness (rather than narcissism or self-esteem) explained the higher preference for unique baby names among younger than older generations. Study 3 showed that, in actual naming practices, younger parents emphasized name uniqueness (rather than modernity, positivity, or other features) more than older cohorts. These findings convergently support our hypotheses, highlighting the importance of identifying specific mechanisms underlying psychological and behavioral changes, rather than assuming the rising individualism as a general explanation.

  • Validation of the bodily expressive action stimulus test among Chinese adults and children

    Subjects: Psychology >> Developmental Psychology submitted time 2022-03-19

    Abstract:

    Objective: The bodily expressive action stimulus test (BEAST) is developed to provide a set of standardized emotional stimuli for experimental investigations of emotion and attention, and the consistency has been validated in adult populations abroad. However, the consistency of this test in Chinese population is unclear. To this end, 42 images of each category of emotion (happiness, sadness, fear and anger) were selected from 254 images of the original stimulus set to further examine the consistency of the BEAST in Chinese population.

    Methods: Thirty-one Chinese college students and 41 Chinese preschool children participated in this study. All of them were asked to complete an emotion recognition and judgment task.

    Results: Results showed that adults had a high degree of consistency in rating these pictures, while the children's consistency was at a medium level. For adults, sadness was the easiest to recognize, followed by fear, anger and happiness were the hardest to recognize. For children, fear was the easiest to recognize, anger and sadness were second, and happiness was also the hardest to recognize. At the same time, adults were more accurate in identifying happiness and sadness than children. For adults, they were more likely to confuse positive emotions with negative emotions. They tended to mistake sadness, fear and anger for happiness. For children, they were more likely to identify sadness as fear and happiness. And they also tended to recognize anger as fear.

    Limitations: Fear and anger emotional pictures are suitable in children aged about 5 whereas the applicability of sadness and happiness, especially happy emotional pictures are not ideal.In the picture materials can be improved, and the body posture pictures conveying happiness and sadness can be re-shot in combination with the actual life situation of Chinese people. Meanwhile, children in the lower years of primary school can be selected for exploration.

    Conclusions: These results indicate that the recognition performance of BEAST images for Chinese and Western adults are roughly the same, however, under the same cultural context, the recognition performance of adults and children are very different, and generally the recognition accuracy rate of adults is higher than that of children.

  • An electrophysiological investigation of the temporal asynchrony effect on character-speech sound integration in Chinese typically developing children and children with dyslexia

    Subjects: Psychology >> Developmental Psychology submitted time 2021-02-25

    Abstract: " The neural mechanism of orthographic-phonological integration was influenced by the temporal relationship of cross-modal stimuli. However, previous studies mainly investigated the neural mechanism of letter-speech sound integration in precise temporal synchrony or small temporal asynchrony conditions. In this study, character-speech sound integration was investigated in a relatively wide temporal window. Chinese characters were presented synchronously to the onset of speech sounds or before speech sound by 300 or 600 ms (referred as AV0, AV300 and AV600). ERP responses evoked by congruent condition (speech sounds were paired with congruent visual characters) and baseline condition (speech sounds were paired with Korean characters) were compared. Different electrophysiological markers were found in the temporal synchrony and temporal asynchrony conditions. In the AV0 condition, developing dyslexia (DD) and typically developing (TD) children showed similar congruency effect on P1, N170 and N300 components, demonstrating the influence of speech sound on visual character processing. In the AV300 condition, DD group showed left-lateralized congruency effect on N200, whereas TD children showed bilateral congruency effect on N200. Both groups showed bilateral congruency effect on N200 in the AV600 condition. We speculate that the insufficient character-speech sound integration exhibited by dyslexic children in the AV300 condition was probably caused by their slow visual processing speed. The results provide unique insight into the neural mechanism of print-speech integration in a wide temporal window and point out the necessity to investigate neural mechanism of print-speech integration in a relatively wide temporal window.

  • Neuroanatomical correlates of individual differences in self-awareness of highly practiced visuomotor skills

    Subjects: Psychology >> Cognitive Psychology submitted time 2020-06-30

    Abstract: " Metacognition refers to the ability to introspect our cognitive ability, which plays an essential role in guiding and optimizing our activities. However, little is known about metacognitive capacity for highly practiced motor behaviors and its neural correlates. Using structural and functional magnetic resonance imaging (MRI), the present study examined the brain substrates underlying individual differences in self-awareness of handwriting in adults, a highly practiced visuomotor skill. Results showed that adult writers generally overestimate their handwriting skill, which is more pronounced in males relative to females. The extent of overestimation of handwriting quality was positively correlated with grey matter volume in the left fusiform gyrus, right middle frontal gyrus and right precuneus. Moreover, the activation of these regions in a handwriting task was not correlation with self-awareness of handwriting, confirming that the identified connection between brain structures and handwriting self-awareness is independent of task performances. The left fusiform gyrus and right middle frontal gyrus are thought to represent domain-specific brain mechanisms for handwriting self-awareness, while the right precuneus is likely to be a domain-general brain mechanism, suggesting that the ability of introspect practiced visuomotor skills relies on both domain-general and domain-specific brain systems. Together, this study is the first to reveal the neuroanatomical correlates of a highly practiced motor behavior, extending our understanding about the neural basis of human metacognition.

  • Reconfiguration of functional brain networks underlying the distinctions between automatic and controlled handwriting

    Subjects: Psychology >> Cognitive Psychology submitted time 2020-06-17

    Abstract: This study aimed to examine the brain mechanisms underlying the distinctions between automatic and controlled handwriting. Functional magnetic resonance imaging data were collected while adult participants (n = 53) performed a copying task with varying speed control demands. Network analysis showed significant differences in functional connectivity within and between the frontoparietal network (FPN), the default mode network (DMN), the dorsal attention network (DAN), the somatomotor network (SMN) and the visual network (VN) between automatic and speed-controlled handwriting irrespective of written materials, which are thought to reflect general executive control and task-relevant visuomotor operations. However, there were no differences in brain activation between automatic and controlled handwriting. These results suggest that reconfiguration of functional network architecture, rather than regional activation, underlies the dissociations between automatic and controlled handwriting. Our findings shed new light on the neural mechanisms of handwriting mastery and handwriting impairments in individuals with neurological disorders. " "

  • Brain Functional Specialization is Enhanced among Tai Chi Chuan Practitioners

    Subjects: Psychology >> Cognitive Psychology Subjects: Psychology >> Other Disciplines of Psychology submitted time 2020-03-05

    Abstract: Objective: To investigate the effect of long-term Tai Chi Chuan (TCC) practice on practitioners’ brain functional specialization compare with the TCC novices. Methods: 22 TCC practitioners (52.4 ± 6.8 years; 7 males; educated years:12.18 ± 3.03 years) and 18 healthy controls (54.8 ± 6.8 years; 8 males; education years:11.78 ± 2.90 years) matched by age, sex, and education were enrolled. Participants underwent functional magnetic resonance imaging (fMRI) scanning and cognitive test to measure the differences in functional specialization and cognitive function. Functional specialization was evaluated by voxel-mirrored homotopic connectivity (VMHC) method. Results: Lower middle frontal gyrus (MFG) VMHC in TCC practitioners compared to controls. For TCC practitioners, the longer they practice, the lower their VMHC in precentral and precuneus. TCC practitioners showed better cognition performance. Limitations: Relatively small sample size. Conclusions: Changed VMHC indicated that TCC practice could enhance functional specialization in the middle frontal cortex of practitioners, which may be associated with higher-order cognitive ability.