Perceived motion in structure from motion: Pointing responses to the axis of rotation

We investigated the ability to match finger orientation to the direction of the axis of rotation in structure-from-motion displays. Preliminary experiments verified that subjects could accurately use the index finger to report direction. The remainder of the experiments studied the perception of the axis of rotation from full rotations of a group of discrete points, the profiles of a rotating ellipsoid, and two views of a group of discrete points. Subjects’ responses were analyzed by decomposing the pointing responses into their slant and tilt components. Overall, the results indicated that subjects were sensitive to both slant and tilt. However, when the axis of rotation was near the viewing direction, subjects had difficulty reporting tilt with profiles and two views and showed a large bias in their slant judgments with two views and full rotations. These results are not entirely consistent with theoretical predictions. The results, particularly for two views, suggest that additional constraints are used by humans in the recovery of structure from motion.     

The original MMPI and Colligan Norms revisited

Norms developed by Colligan, Osborne, Swenson, and Offord (1983) and others at the Mayo Clinic for the MMPI overcome criticisms that the MMPI is not useful in 2003 and representative. This study ascertained the classification of MMPI profiles of clinicians. Mayo Clinic norms are warranted in view of the similar classifications made using both methods based on the same MMPI data.     

Different step-over movement strategies for disturbance stimulations

This study examined differences in performance when 10 healthy adult participants took steps under three different disturbance stimulations (with opened and closed eyes and with the use of light), with and without an obstacle present. In the voluntary condition, participants recognized the obstacle beforehand and stepped over it quickly; in the light condition, participants recognized the obstacle beforehand and quickly stepped over it after light stimulation; in the closed eyes condition, participants did not recognize the obstacle beforehand, but after opening their eyes when hearing a sound, they quickly stepped over the obstacle. The swing time of the gait was significantly longer in obstacle conditions for all stimulations. The swing time was significantly longer under the closed eyes condition than the light and voluntary conditions. The clearances were significantly higher in order of the closed eyes, light, and voluntary conditions in the presence of an obstacle.     

Fear versus humor: the impact of sensation seeking on physiological, cognitive, and emotional responses to antialcohol abuse messages

This study investigates the differences in physiological, cognitive, and emotional responses to existing emotional antialcohol abuse advertisements (fear vs. humor appeal) between high and low sensation seekers. A 2 (Message Type) x 2 (Sensation-Seeking Tendency) x 4 (Message Repetition) mixed-model experiment with repeated measures was conducted with 71 college students. The results, based on self-reports, indicated that fear messages generated more interest and perceived danger of excessive drinking regardless of sensation-seeking tendency, whereas humorous messages were rated as more likeable than fear messages, and the difference was bigger among low sensation seekers than among high sensation seekers. One interesting finding was that for both fear and humor appeals, low sensation seekers showed greater emotional responses (greater corrugators activities and greater zygomatic activities) than high sensation seekers overall. The implications of the current study as well as suggestions for future study were discussed.     

The relationship between motivation and achievement in interdependent situations

This meta‐analysis investigates the degree to which achievement is positively associated with motivation within situations characterized by positive, negative, and no interdependence. First, the relative effects of positive, negative, and no interdependence on motivation and achievement were determined. Then the amount of variance in achievement explained by motivation (and vice versa) was calculated. In all, 629 independent studies were included, representing 26 different countries. Results also showed that motivation accounted for 14% of the variance in achievement (and vice versa). When the lowest‐quality studies were eliminated, the percentage of achievement explained by motivation increased to 24%. Positive interdependence resulted in greater motivation and achievement than did negative or no interdependence. Implications for theory and application are discussed.     

Living Independently as an Ethnic Minority Elder: A Relational Perspective on the Issues of Aging and Ethnic Minorities

This study examines the residential experiences of Korean ethnic elders in affordable housing in the greater Chicago area, focusing on how patterns of social relationships that evolved around a geographical location and its urban infrastructure enabled the elders to achieve their desire for residential independence. Based on the theoretical concept of activity settings and social capital, the study suggests an integrated theoretical model where social capital is understood as an embedded asset of an activity setting. Methodologically, this study uses a combined method of qualitative interviews with 138 Korean elders in affordable housing in the greater Chicago area and a geographic analysis of their social relationships in order to present associations among social relationships, urban infrastructures, and the shared value of independence within their residential communities. The study findings indicate that the elders mobilized ethnic businesses, urban infrastructures, and the collective efficacy of groups to achieve the shared goal of maintaining residential independence. In each community, a cultural broker acted as an important bridge between the community of ethnic minorities and the larger social networks coexisting within the community boundary. The relational perspective as a potent ground for understanding and further solving the issues of aging and ethnicity is highlighted.     

Shyness and Psychosocial Functioning in South Korean Children

The purpose of this study was to examine whether anxious shyness and regulated shyness, initially identified in the Chinese culture, is found in South Korean children, and to explore whether these two forms of shyness were differentially related to children's psychosocial functioning. Participants were 544 fourth to sixth grade children (251 girls, M age = 11.38 years old) who were recruited from an elementary school in Bucheon City, South Korea. Children's anxious and regulated shyness were measured using peers' nominations and teachers' ratings, whereas their social preference and social impact were assessed using peers' nominations. Parents rated their children's temperamental shyness and effortful control, and children self‐reported their loneliness and interpersonal concerns. The results of confirmatory factor analysis replicated the two factor model of shyness found in previous studies of Chinese children. Anxious shyness and regulated shyness were positively associated and were similarly related to temperamental shyness. Anxious shyness was negatively related to effortful control and social preference, and positively associated with self‐reported loneliness and interpersonal concerns, whereas regulated shyness was positively related to effortful control and social preference and negatively associated with loneliness and social impact. These results were generally consistent with prior Chinese findings and provided preliminary support for the construct validity of anxious and regulated shyness in another Asian culture that emphasizes interdependence and modesty. Copyright © 2013 John Wiley & Sons, Ltd.     

What Does “Happiness” Prompt in Your Mind? Culture,Word Choice,and Experienced Happiness

What three words come to your mind in association with “happiness”? We analyzed the 1563 words reported by 521 Korean and American participants in this free association task. The most frequently endorsed word was “family” in Korea, whereas the most popular word among Americans was “smile.” The overall frequency of social words (e.g., relationships, social emotions) reported by Koreans was higher, and the most often mentioned relationship type differed between the two groups (family in Korea; friend in the US). Nonetheless, both in Korea and the US, individuals who mentioned more social words were significantly more satisfied with their lives. The amount of social support provision mediated the link between the number of reported social words and experienced happiness. Regardless of culture, a simple count of social words associated with happiness appears to offer a reasonably good clue for how happy the person actually is.     

The effect of cognitive reappraisal on long‐term emotional experience and emotional memory

One's ability to properly regulate emotion is critical to psychological and physical well‐being. Among various strategies to regulate emotion, cognitive reappraisal has been shown to modulate both emotional experience and emotional memory. However, most studies of reappraisal have focused on reappraisal of negative situations, with reappraisal of positive emotion receiving considerably less attention. In addition, the effects of reappraisal on emotional reactions to stimuli are typically only assessed either immediately or after a short delay, and it remains unclear whether reappraisal effects persist over longer time periods. We investigated the effect of cognitive reappraisal on emotional reactions and long‐term episodic memory for positive and negative stimuli. Men and women viewed emotionally negative, positive, and neutral pictures while they were instructed to either increase, decrease, or maintain the initial emotional reactions elicited by the pictures. Subjective ratings of emotional valence and arousal were assessed during the regulation task and again after 1 week. Memory for the pictures was assessed with free recall. Results indicated that pictures accompanied by instructions to increase emotion were better recalled than pictures reappraised to decrease emotion. Modulation of emotional arousal elicited by stimuli persisted over a week, but this effect was observed only for men. These findings suggest that cognitive reappraisal can have long‐lasting effects on emotional reactions to stimuli. However, the sex differences observed for the effects of reappraisal on emotional reactions highlight the importance of considering individual differences in the effects of regulation.     

Event-related fMRI of category learning: differences in classification and feedback networks

Eighteen healthy young adults underwent event-related (ER) functional magnetic resonance imaging (fMRI) of the brain while performing a visual category learning task. The specific category learning task required subjects to extract the rules that guide classification of quasi-random patterns of dots into categories. Following each classification choice, visual feedback was presented. The average hemodynamic response was calculated across the eighteen subjects to identify the separate networks associated with both classification and feedback. Random-effects analyses identified the different networks implicated during the classification and feedback phases of each trial. The regions included prefrontal cortex, frontal eye fields, supplementary motor and eye fields, thalamus, caudate, superior and inferior parietal lobules, and areas within visual cortex. The differences between classification and feedback were identified as (i) overall higher volumes and signal intensities during classification as compared to feedback, (ii) involvement of the thalamus and superior parietal regions during the classification phase of each trial, and (iii) differential involvement of the caudate head during feedback. The effects of learning were then evaluated for both classification and feedback. Early in learning, subjects showed increased activation in the hippocampal regions during classification and activation in the heads of the caudate nuclei during the corresponding feedback phases. The findings suggest that early stages of prototype-distortion learning are characterized by networks previously associated with strategies of explicit memory and hypothesis testing. However as learning progresses the networks change. This finding suggests that the cognitive strategies also change during prototype-distortion learning.