Children's Understanding of Lies in Elementary School Years

The author examined whether children's understanding of lies exhibits developmental trends in the elementary school years. Four story contexts were presented to 51 first-grade students, 44 fourth-grade students, and 58 adults. These stories represented combinations of a protagonist's intention (truthful or deceptive) and the truth of the protagonist's message (true or false). The results showed that adults judged whether these messages were lies by considering the protagonist's intentions. By contrast, approximately 30% of first-grade students and some fourth-grade students did not consider intentions in making judgments, although they appropriately predicted the outcomes of the messages. These results suggest that children in the early elementary school years have a conception of lies different from that of adults, and their conception of lies becomes more sophisticated after middle childhood.     

Impaired Interpretation of Others’ Behavior is Associated with Difficulties in Recognizing Pragmatic Language in Patients with Schizophrenia

Much attention has been paid to the pragmatic language function in schizophrenia. This study of Japanese patients with schizophrenia examined the relationship between impaired interpretation of the behaviors of other people in social contexts and the ability to recognize metaphor and irony. We assessed 34 patients with schizophrenia and 34 normal subjects using first- and second-order theory of mind tasks, the Metaphor and Sarcasm Scenario Test, and the Dewey Story Test (which tests the ability to judge others’ social behaviors). We compared the performance between the groups and analyzed correlations between the tasks. All tasks revealed significant deficits in the patients compared with the controls. In the patient group, metaphor comprehension was correlated with the ability to judge normal behaviors, and irony comprehension was correlated with the ability to judge abnormal behaviors, suggesting that deficits of social cognition in schizophrenia include these two types of factors associated with pragmatic language.     

Which is More Relevant for Perceived Happiness,Individual-Level or Area-Level Social Capital? A Multilevel Mediation Analysis

A growing number of studies have addressed how social capital is closely related to an individual’s perceived happiness. However, most happiness studies have focused on individual-level social capital, which is based on an individual’s subjective assessment of social capital gathered from social surveys. Considering that social capital was originally a collective concept, this study distinguished individual- and area-level aspects of social capital and their relationships in terms of their associations with perceived happiness. To this end, we employed multilevel mediation analysis using cross-sectional microdata from a nationwide Internet survey conducted in Japan (N = 9523). We focused on four types of social capital: trust in neighbors, contacts with neighbors, bonding, and bridging. Based on the estimation results, we first confirmed that social capital at both the individual and area levels had a positive association with perceived happiness when using them separately as an independent variable. Second, we found that a substantial portion of the effect of area-level social capital on perceived happiness was mediated by individual-level social capital. This suggests that an individual’s commitment to area-level social capital is required if a large portion of its potential benefits on perceived happiness are to materialize. Furthermore, we observed that the effects of area-level bonding and bridging on their individual-level measures were affected by several individual-level attributes, including personality traits. Overall, the results underscore the need for further investigation into the association between perceived happiness and social capital at different levels.     

Superior fluid intelligence in children with Asperger's disorder

Asperger's disorder is one of autistic spectrum disorders; sharing clinical features with autism, but without developmental delay in language acquisition. There have been some studies of intellectual functioning in autism so far, but very few in Asperger's disorder. In the present study, we investigated abstract reasoning ability, whose form of intelligence has been labeled fluid intelligence in the theory of Cattell [Cattell, R. B. (1963). Theory of fluid and crystallized intelligence: A critical experiment. Journal of Educational Psychology, 54, 1-22.], in children with Asperger's disorder. A test of fluid intelligence, the Raven's Standard Progressive Matrices Test, was administered to 17 children with Asperger's disorder and 17 age-, gender-, and FIQ-matched normal children. The results showed that children with Asperger's disorder outperformed on the test of fluid reasoning than typically developing children. We suggest that individuals with Asperger's disorder have higher fluid reasoning ability than normal individuals, highlighting superior fluid intelligence.     

Spatial term apprehension with a reference object’s rotation in three-dimensional space

It has been reported that the overall shapes of spatial categorical patterns of projective spatial terms such as above and below are not influenced by the rotation of a reference object on a two-dimensional (2D) upright plane. However, is this also true in three-dimensional (3D) space? This study shows the dynamic aspects of the apprehension of projective spatial terms in 3D space by detailing how the rotation of a reference object with an inherent front influences the apprehension of projective spatial terms on a level plane by mapping their spatial categorical patterns. The experiment was designed to examine how spatial categorical patterns on a level plane changed with the rotation of a reference object with an inherent front in 3D computer graphics space. We manipulated the rotation of a reference object with an inherent front at three levels (0°, 90°, and 180° rotations) and examined how such manipulation changed the overall spatial categorical patterns of four basic Japanese projective spatial terms: mae, ushiro, hidari, and migi (similar to in front of, behind, to the left of, and to the right of in English, respectively). The results show that spatial term apprehension was affected by the rotation of the reference object in 3D space. In particular, rotation influenced the mae–ushiro and hidari–migi systems differently. The results also imply that our understanding of projective spatial terms on a level plane in 3D space is affected dynamically by visual information from 3D cues.     

Functional imaging of working memory and peripheral endothelial function in middle-aged adults

The current study examined the relationship between a prognostic indicator of vascular health, flow-mediated dilation (FMD), and working memory-related brain activation in healthy middle-aged adults. Forty-two participants underwent functional magnetic resonance imaging while completing a 2-Back working memory task. Brachial artery endothelial-dependent flow-mediated dilation (FMD) was assessed using B-mode ultrasound. The relationship between FMD and task-related brain activation in a priori regions of interest was modeled using hierarchical linear regression. Brachial FMD, was significantly related to reduced working memory-related activation in the right superior parietal lobule (β = 0.338, p = 0.027), independent of age, sex, systolic blood pressure, and full scale IQ (F(5, 36) = 2.66, p = 0.038). These data provide preliminary support for the association between a preclinical marker of endothelial dysfunction and cerebral hemodynamic alterations in healthy middle-aged adults. Considering the modifiable nature of endothelial function, additional investigations on the prognostic significance of FMD on future cognitive impairment are warranted.     

Are East Asians happy to work more or less? Associations between working hours,relative income and happiness in China,Japan, South Korea and Taiwan

As East Asians are, on average, less happy than those in economically developed Western nations, more insights regarding the associations between work, income and happiness are needed. This study analyzes data from the 2010 East Asian Social Survey to investigate these associations in China, Japan, South Korea and Taiwan, and is framed in a similar context as previous studies that utilize data from Western nations and through the lens of social comparison theory. Path analysis is used to model the associations between happiness and its predictors while taking correlations between the predictors into account. Results show that working hours are negatively associated with happiness in China, Japan and Taiwan, but such an association is not observed in South Korea. At the same time, relative income is significantly associated with happiness in all four East Asian nations, but it only mediates the association between working hours and happiness in China. These results suggest that careful consideration of economic and labour policies are critical to promote the happiness of East Asian workers. Findings from this study are useful for further inquiries with regard to specific explanatory factors of the associations between working hours, relative income and happiness in East Asia.     

Preference modulates smelling behaviour in olfactory decision tasks

When people are shown a pair of images and asked to identify which one is more attractive, their gaze shifts to the image they will eventually choose, prior to making the decision. Many researchers have examined the relationship between this gaze bias and decision processes, but not the relationships between other sensory modalities and decision processes. This study examined behaviour in relation to olfactory decision tasks. In accordance with the concept of gaze bias, the likelihood of participants smelling the item they eventually chose immediately before the decision was greater when they were instructed to identify an item that was more, versus less, favoured. The likelihood of smelling the item that was eventually chosen last was also greater than chance when participants were instructed to identify the more masculine item. These results suggest that a bias to sample a chosen item last is a common phenomenon regardless of sensory modality.     

The apparent paths of two or three circularly moving spots

Summary Two or three circularly moving luminous spots presented side by side in a dark room were observed under non-restrictive conditions, instead of pursuing a particular spot with the eyes. The experimental variables were speed, direction (clockwise or counterclockwise) and the phase difference between the moving spots. The paths of the circularly moving spots appeared to be a circle, an ellipse, or a straight line. With the three phase differences of 0°, 90°, and 180°, the paths appeared to be horizontally, obliquely, and vertically elongated ellipses, respectively. The direction difference from the other moving spots could affect the size of the apparent path. The speed had the most remarkable effect on the apparent paths. The perceptual vector analysis is applicable under slow speed conditions in the present experiments with a display of relatively large visual angle.This study was conducted in The Psychological Laboratory, Keio University in Yokohama