Effects of stimulation by three-dimensional natural images on prefrontal cortex and autonomic nerve activity: a comparison with stimulation using two-dimensional images

Empirical evidence suggests that three-dimensional (3D) images of nature promote physiological relaxation in humans by providing more realistic effects compared with two-dimensional (2D) images. However, no studies have evaluated the physiological relaxation effects of nature-derived 3D images on prefrontal cortex and autonomic nerve activity. The present study aimed to clarify the physiological relaxation effects of visual stimulation by 3D flower images on prefrontal cortex and autonomic nerve activity. Nineteen male university students (22.2 ± 0.6 years) were presented with 3D and 2D images of the water lily for 90 s. Prefrontal cortex activity was measured using near-infrared spectroscopy, while autonomic nerve activity was measured using heart rate variability (HRV). Psychological effects were determined using a modified semantic differential method (SD). Compared with visual stimulation by 2D images, that by 3D images resulted in a significant decrease in oxyhemoglobin concentration in the right prefrontal cortex, lower sympathetic activity as calculated by the ratio of the low-frequency to high-frequency HRV component, and a significantly greater realistic feeling as evidenced by higher SD ratings. In conclusion, visual stimulation by realistic 3D floral images promotes physiological relaxation more effectively than the corresponding 2D image.     

Life Satisfaction of the Aged in the Retirement Process: A Comparative Study of South Korea with Germany and Switzerland

This study aims to examine relationships among various types of transitional retirement processes and life satisfaction. It conducted a cross-national comparison among Korea, Germany, and Switzerland using the Cross-National Equivalent File and the ordered logistic analysis method was used as the analysis model. We classify the retirement process by three types; the complete retirement type, the hopping type of post-retirement and the continuity type of post-retirement, and evaluate the life satisfaction in each type of retirement process. Our empirical analysis finds that workers of the complete retirement type have higher level of life satisfaction than workers working continually after retirement in South Korea, while workers continually working even after retirement periods have higher level of life satisfaction than workers of the complete retirement type in Germany and Switzerland. Based upon these empirical results, we also discuss the policy direction to improve the life satisfaction of the aged in South Korea.     

Research-Based Knowledge in Psychology: What,if Anything,is Its Incremental Value to the Practitioner?

This essay reflects an ongoing dialogue between a clinician versed in mainstream psychological research and theory, and a social psychologist with experience both as a researcher and contributor to applied undertakings in various domains about the “incremental value” of research-based knowledge—that is, its value beyond that provided by the other sources of knowledge available to the practitioner. These sources include knowledge about the needs and coping strategies of all human beings, as well as knowledge both about the specific life circumstances of those one is seeking to help, and knowledge about language and culture. Examples from the clinical practice of the first author are offered, coupled with in-principle arguments about the underspecified and contingent nature of research-based generalizations. By way of rebuttal, examples of arguably useful findings are provided by the second author—especially findings that serve as correctives to biases in lay psychology (notably unwarranted “dispositionism”) and to widespread shortcomings in judgment and decision-making (particularly, Kahneman and Tversky’s work on “prospect theory” ). Both authors agree on the value of a “bricoleur” treatment strategy that relies on careful attention to the specifics of the case at hand and avoids one-size-fits-all applications of theory and prior research, and both agree that research-based findings are more useful in predicting behavior and designing intervention strategies that apply to groups and large samples of individuals rather than single actors. A concluding discussion focuses on necessary criteria and strategies for increasing the usefulness of laboratory and field research for the practitioner.     

The structure of analog representation

This paper develops a theory of analog representation. We first argue that the mark of the analog is to be found in the nature of a representational system's interpretation function, rather than in its vehicles or contents alone. We then develop the rulebound structure theory of analog representation, according to which analog systems use interpretive rules that map syntactic structural features onto semantic structural features. The theory involves three degree-theoretic measures that capture three independent ways in which a system can be more or less analog. We explain how our theory improves upon prior accounts of analog representation, provides plausible diagnoses for novel challenge cases, extends to hybrid systems that are partially analog and partially symbolic, and accounts for some of the advantages and disadvantages of representing analogically versus symbolically.     

Childhood ADHD and Executive Functioning: Unique Predictions of Early Adolescent Depression

Research on Child and Adolescent Psychopathology - Given the increasing prevalence of adolescent depression, identification of its early predictors and elucidation of the mechanisms underlying its...     

Mind your meat: Religious differences in the social perception of animals

While previous work demonstrated that animals are categorised based on their edibility, little research has systematically evaluated the role of religion in the perception of animal edibility, particularly when specific animals are deemed sacred in a religion. In two studies, we explored a key psychological mechanism through which sacred animals are deemed inedible by members of a faith: mind attribution. In Study 1, non-vegetarian Hindus in Singapore (N = 70) evaluated 19 animals that differed in terms of their sacredness and edibility. Results showed that participants categorised animals into three groups: holy animals (high sacredness but low edibility), food animals (low sacredness but high edibility) and neutral animals (low sacredness and low edibility). Holy animals were deemed to possess greater mental life compared to other animal categories. In Study 2, we replicated this key finding with Hindus in India (N = 100), and further demonstrated that the observed pattern of results was specific to Hindus but not Muslims (N = 90). In both studies, mind attribution mediated the negative association between sacredness and edibility. Our findings illustrate how religious groups diverge in animal perception, thereby highlighting the role of mind attribution as a crucial link between sacredness and edibility.     

The Mitigating Role of Trait Core Confidence on Psychological Distress in Entrepreneurship

We conceptualize the mitigating role of trait core confidence on psychological distress in entrepreneurship manifested by occupational stress, anxiety, and depression. To facilitate field research, we first developed a short trait core confidence scale and validated it in six independent samples (N = 2,434). To test our hypothesis that trait core confidence negatively relates to base-line levels of psychological distress as well as reduces fluctuations of distress in entrepreneurship, we collected data from a 3-day entrepreneurial event called Startup Weekend across seven occasions in the United States. High trait core confidence was related to lower psychological distress both at the start of the event on Friday and at the end of it on Sunday. Core confidence remained stable from Friday to Sunday, as well as 1 month following the event, affirming its trait properties. Additionally, we measured team confidence during the event and found that high team confidence reduced psychological distress of team members. This research contributes to the research on the role of dispositions in occupational health psychology and to a better understanding of how distress of aspiring entrepreneurs is mitigated by trait core confidence.     

Refining the psychometric properties of the circadian type inventory

The psychometric properties of the 18-item circadian type inventory (CTI) were examined in a non-shiftwork sample. Inter-item correlations for each scale were low to moderate. Confirmatory factor analysis (CFA) via structural equation modelling did not support the posited structure of the CTI. Principal components analysis and reliability analyses suggested the CTI is better represented by 11-items. The revised five item FR scale accounted for 27% of the variance, had stronger factor loadings and increased Cronbach alpha. The psychometric properties of the six item LV scale were marginally improved and explained 21% of the variance. The two-factor 11-item model was supported by CFA. Compared to the 18-item model, the 11-item model showed a marked improvement on several incremental fit indices and achieved a more parsimonious model fit. There was some indication of gender differences but a multi-group CFA indicated model parsimony was best for the invariant model. Gender difference needs to be further examined in large samples using a similar gender balance. It is concluded that the 11-item CTI is psychometrically superior to the original. However, its predictive efficacy needs to be examined in longitudinal studies.