• The relationship between gut microbiota and brain imaging and clinical manifestation in schizophrenia

    Subjects: Psychology >> Other Disciplines of Psychology submitted time 2022-01-27

    Abstract:

    The microbiota-gut-brain axis hypothesis has attracted more and more attention in the research of the pathogenesis of schizophrenia. Previous research has preliminarily investigated the relationship between the composition of gut microbiota and the brain imaging and clinical manifestation of patients with schizophrenia, but the specific action path is still unclear. This research summarized the latest research progress, and on this basis, proposed the mechanism hypothesis of gut microbiota affecting the brain structure and function of patients with schizophrenia. The related contents will provide a theoretical basis for further elucidation of the pathological mechanism of schizophrenia and for incorporating gut microbiota into the assessment and intervention of schizophrenia.

  • Round Outside and Square Inside: The Latent Profile Structure and Adaptability of Chinese Interpersonal Relatedness

    Subjects: Psychology >> Personality Psychology submitted time 2021-05-11

    Abstract: " What is Chinese personality? This question has long attracted the interest of researchers. Joint factor analyses of the Chinese Personality Assessment Inventory (CPAI), which was generated using a combined emic-etic approach, and the NEO-FFI, which measures western-derived Big Five personality factors, produced six factors. These correspond to the five factors from the Big Five Model plus an Interpersonal Relatedness factor (IR). These six factors constitute the “Big Six” personality structure that describes and explains Chinese personality or behavior. IR is a culturally specific personality dimension that is closely related to traditional Chinese culture. The existence of IR has been confirmed by a large number of studies, but its connotations need to be further explored and refined. This paper discussed the subtypes of the Chinese IR personality trait from a quantitative perspective and further explored which subtype of IR was more adaptive. The study adopted a “person-centered approach” to reveal the overall nature of IR in Chinese people. In Study 1, 1911 participants of the CPAI-2 normative sample were analyzed with latent profile analysis (LPA) in terms of six dimensions of IR – Ren Qing (Relationship Orientation), Harmony, Interpersonal Sensitivity, Discipline, Thrift vs. Extravagance, and Traditionalism vs. Modernity – to explore the potential subtypes of IR. In Study 2, 200 white people were investigated to explore the latent profile structure of Interpersonal Relatedness in non-Chinese people. In Study 3, 2580 juniors from a comprehensive university were investigated to verify the potential structure of IR obtained in Study 1. The LPA method with outcome variables (BCH method) was used to investigate the social adaptability of different subtypes of college students in the potential structure of IR in terms of academic performance, knowledge sharing behavior, and mental health. The results of study 1 showed that the fourfold classification model of IR had the best fitting index. The fourfold classification model was specifically composed of high and low scores of “round outside” (including three potential personality constructs of Ren Qing, Harmony, and Interpersonal Sensitivity) and “square inside” (including three potential personality constructs of Discipline, Thrift vs. Extravagance, and Traditionalism vs. Modernity). The four subtypes were “gentlemen” who were round outside and square inside, pedantic persons who were non-round outside and square inside, two-faced persons who were non-round outside and non-square inside, and hypocrites who were round outside and non-square inside. The fourfold classification model showed that the latent profile structure of the Chinese IR personality trait involved the dialectical unity of “round outside” and “square inside.” The results of study 2 showed that the latent profile structure of the four categories of "round outside and square inside" did not appear in the Western samples, which reflected the Chinese cultural specificity of the "round outside and square inside" latent profile of Interpersonal Relatedness. The results of study 3 verified the fourfold classification model of study 1. The results of BCH in study 3 found that among the four subgroups, the subgroup of “round outside and square inside” had better academic performance, higher levels of mental health, and more knowledge sharing behaviors, which indicated that this subgroup was the most adaptable in modern society. The results are discussed in relation to traditional Chinese culture, especially regarding the characteristics of the Confucian “gentleman personality.” The research provides a rich historical context and insight into the applicability to the contemporary life of the dialectical and unified “round outside and square inside” behavior mode of contemporary Chinese people.

  • The Implicit Advantage of a High Kindness Trait in the Action Control of Emotion Regulation

    Subjects: Psychology >> Experimental Psychology submitted time 2019-03-13

    Abstract: " Kindness is a desirable trait to possess, and it is therefore commendable to investigate its link with self-regulation and, in particular, emotion regulation. Implicit processes in general are much more consistent and reliable, as they are triggered automatically and run to completion without conscious effort or monitoring. Therefore, the effect of implicit emotion regulation on psychological health is more important than that of explicit cognitive behavior and ability. Based on an action control perspective, which suggests that the regulatory process for emotions usually includes three sub-tasks, in this study, a set of implicit tasks were designed to investigate the influence of the kindness trait on implicit emotion regulation among undergraduate students with different levels of kindness. The Chinese Personality Scale was used to assess level of kindness. This study surveyed 399 college students, ultimately selecting 60 participants (30 with high scores and 30 with low scores). The results showed that the high-kindness group had significantly higher scores (M = 90.57, SD = 6.17) than did the low-kindness group (M = 52.28, SD = 3.83), t (58) = 28.70, p < 0.001). A subset of participants was selected based on their kindness scores. They then completed three experimental tasks. First, an emotional Stroop task was conducted to compare the interference effect in color identification caused by emotional valence between the two groups. In this task, the experiment materials were positive and negative emotional words related to interpersonal relationships. The second task used an implicit association test of emotion regulation (ER-IAT) to assess differences in implicit attitude toward emotion regulation between the two groups. The third task was a visual face detection task, which used different expressions to determine the efficiency of implicit emotion recovery in the two groups after a negative emotion induction. The results showed that (1) in the first task, the high-kindness group had a significantly longer reaction time to words describing positive interpersonal relationships than to negative words (p = 0.02). In contrast, the low-kindness participants did not show any difference in reaction times to the two types of words (p = 0.4). (2) In the second task, the high-kindness group had a significantly higher D value (0.34 ± 0.64) than did the low-kindness group (-0.30 ± 0.68), t(54) = 3.64, p = 0.001. (3) In the third task, although the explicit emotion changes did not differ significantly between the two groups at any time point (all p > 0.05), the reaction times for the high-kindness participants were significantly shorter than those for the low-kindness participants in the visual face search tasks using happy-angry combination matrixes (p = 0.01). This study presented the link between the personality trait of kindness and implicit emotional responses according to action control theory. These results suggested that (1) the emotional valence of words only interferes with the reaction times of high-kindness participants’ color judgment, and a more significant Stroop interference effect was only found for positive valence words. (2) High-kindness individuals were more inclined to demonstrate a positive implicit attitude in emotion regulation and preferred a deliberate, appropriate control of emotions. In contrast, the low-kindness individuals were more inclined toward a negative implicit attitude towards emotion regulation and preferred a direct expression of emotions. (3) The high-kindness individuals shifted their attention away from angry faces more quickly and had greater implicit emotion regulation ability. This study provided experimental evidence that there was an advantage for kindness traits with regard to implicit emotion regulation.

  • Self-prioritization is modulated by arousal

    Subjects: Psychology >> Experimental Psychology submitted time 2018-01-12

    Abstract: Stimuli related to the self are processed more efficiently in a variety of cognitive tasks. Recent studies have shown that this self-referential bias is modulated by one’s emotional states; however, it remains unclear whether the impact of emotion is primarily attributable to valence or arousal. Experiment 1 measured the self-prioritization effect with a label-shape matching task under four mood states. The results revealed a stronger self-prioritization effect in moods of higher arousal level, and a significant correlation between the arousal ratings and the self-prioritization effect. Experiment 2 further showed that alerting cues, which have been known to elevate the arousal level, boosted the self-prioritization effect measured in a similar label-shape matching task. These results provide clear evidence that arousal modulates self-referential processing

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