Delivery of internet treatment for compulsive hoarding (D.I.T.C.H.)

This study tested the effectiveness of an existing private online CBT-based group intervention designed to help people with hoarding. Web-group participants were hypothesized to show more improvement in hoarding symptoms over time compared to those placed on a naturalistic waitlist. This web-based self-help group (N = 106 members, N = 155 waitlisted) includes a formal application process and requires that participants post action steps and progress at least once monthly. Members have access to educational resources on hoarding, cognitive strategies, and a chat-group. Potential research participants were invited to complete an anonymous web-based survey about their hoarding behaviors and clinical improvement on five occasions (3 months apart). The sample was mainly middle-aged, female and White. Regression analyses show that Recent members reported greater improvement and less clutter at 6 months (than Waitlist). Long-term members reported milder hoarding symptoms than Recent ones, suggesting benefits from group participation over time. All members showed reductions in clutter and hoarding symptoms over 15 months. Less posting activity was associated with greater hoarding severity. Online CBT-based self-help for hoarding appears to be a promising intervention strategy that may extend access to treatment. Evaluating the benefits of internet self-help groups is critical given growing popularity of and demand for web-based interventions.     

Different importance of the volatile and non-volatile fractions of an olfactory signature for individual social recognition in rats versus mice and short-term versus long-term memory

When tested in the olfactory cued social recognition/discrimination test, rats and mice differ in their retention of a recognition memory for a previously encountered conspecific juvenile: Rats are able to recognize a given juvenile for approximately 45 min only whereas mice show not only short-term, but also long-term recognition memory (≥ 24 h). Here we modified the social recognition/social discrimination procedure to investigate the neurobiological mechanism(s) underlying the species differences. We presented a conspecific juvenile repeatedly to the experimental subjects and monitored the investigation duration as a measure for recognition. Presentation of only the volatile fraction of the juvenile olfactory signature was sufficient for both short- and long-term recognition in mice but not rats. Applying additional volatile, mono-molecular odours to the "to be recognized" juveniles failed to affect short-term memory in both species, but interfered with long-term recognition in mice. Finally immunocytochemical analysis of c-Fos as a marker for cellular activation, revealed that juvenile exposure stimulated areas involved in the processing of olfactory signals in both the main and the accessory olfactory bulb in mice. In rats, we measured an increased c-Fos synthesis almost exclusively in cells of the accessory olfactory bulb. Our data suggest that the species difference in the retention of social recognition memory is based on differences in the processing of the volatile versus non-volatile fraction of the individuals' olfactory signature. The non-volatile fraction is sufficient for retaining a short-term social memory only. Long-term social memory - as observed in mice - requires a processing of both the volatile and non-volatile fractions of the olfactory signature.     

Post‐It® Note Persuasion: A Sticky Influence

Four studies examine the influence of attaching a seemingly insignificant Post‐it^® note to a survey packet on the likelihood of completing the survey. Participants who received a packet with an affixed Post‐it note request had significantly higher return rates than participants who received the identical survey with (a) no sticky note, (b) the same message written on the cover sheet but without a Post‐it, or (c) a blank Post‐it with no message provided. Furthermore, they returned the materials more promptly with higher quality responses. A more personalized Post‐it appeal increased returns when the survey was long and time consuming but was no more effective than a nonpersonalized Post‐it when the survey was easy to complete. Results suggest that the Post‐it leads the request to be interpreted as a solicitation for a personal favor, facilitating a normative compliance response.     

Evaluating the validity of Myers‐Briggs Type Indicator theory: A teaching tool and window into intuitive psychology

Despite its immense popularity and impressive longevity, the Myers‐Briggs Type Indicator (MBTI) has existed in a parallel universe to social and personality psychology. Here, we seek to increase academic awareness of this incredibly popular idea and provide a novel teaching reference for its conceptual flaws. We focus on examining the validity of the Jungian‐based theory behind MBTI that specifies that people have a “true type” delineated across four dichotomies. We find that the MBTI theory falters on rigorous theoretical criteria in that it lacks agreement with known facts and data, lacks testability, and possesses internal contradictions. We further discuss what MBTI's continued popularity says about how the general public might evaluate scientific theories.     

The relationship between multidimensional economic well‐being and children’s mental health,physical health,and executive function development in South Africa

Conceptualizing both economic well‐being (EWB) and children's development as multidimensional constructs, the present study examines their association using bioecological developmental theory and structural equation modeling with Zulu children (ages 7–10) in KwaZulu‐Natal, a highly impoverished region of South Africa (N = 1,958). Relative EWB within impoverished communities consists of three dimensions: material assets (durable goods and living environment), fiscal appraisal (subjective experiences of access to/allocation of resources), and fiscal capacity (monetary inflow/outflow). Children's development also is measured across multiple dimensions: physical health, mental health, and executive functioning. In addition to an overall association between EWB and children's development across outcomes, the sub‐dimensions of EWB are differentially related to aspects of children's development. The dimension of material assets exhibits the greatest association with child outcomes, while fiscal capacity exhibits the least. Implications of these findings are discussed, including the use of multidimensional approaches to measuring EWB to understand, more clearly, its relationship to multiple dimensions of children's development. A video abstract of this article can be viewed at https://www.youtube.com/watch?v=ZcawZ6oOt-Q     

The rich are different: Unravelling the perceived and self‐reported personality profiles of high‐net‐worth individuals

Beyond money and possessions, how are the rich different from the general population? Drawing on a unique sample of high‐net‐worth individuals from Germany (≥1 million Euro in financial assets; N = 130), nationally representative data (N = 22,981), and an additional online panel (N = 690), we provide the first direct investigation of the stereotypically perceived and self‐reported personality profiles of high‐net‐worth individuals. Investigating the broad personality traits of the Big Five and the more specific traits of narcissism and locus of control, we find that stereotypes about wealthy people's personality are accurate albeit somewhat exaggerated and that wealthy people can be characterized as stable, flexible, and agentic individuals who are focused more on themselves than on others.     

The Influence of Attentional Focus on Balance Control over Seven Days of Training

This study examined the training effect of attentional focus (external focus, internal focus, or no focus instructions) on a dynamic balance task. Participants completed baseline balance testing, seven consecutive days of dynamic balance board training, and retention testing 24 hours after the last session. The novel finding of this study was the presence of a training effect on balance control when adopting an external focus relative to an internal focus or no focus instructions. Further, we report the unique observation that more patterned behavior was adopted regardless of the focus instructions. These findings provide insight into how instructions can be altered to enhance human balance control and complement the constrained-action hypothesis.     

Psychometric Status and Clinical Utility of the MAYSI-2 with Girls and Boys in Juvenile Detention

This study replicates and extends studies of the Massachusetts Youth Screening Instrument, Version 2 (MAYSI-2) in a sample of 479 urban, rural, and suburban 12–16 year old youths (68% boys; 41% African American, 23% Latino) consecutively admitted to juvenile detention centers. Six principal components replicated the MAYSI-2 factor-analytically-derived subscales except for Depression/Anxiety, and suggested modifications of specific items in each sub-scale. Findings supported the internal consistency and validity of the modified MAYSI-2 sub-scales. Few gender differences emerged, except that girls reported higher levels of hopelessness and trauma than boys. Five sub-groups were identified based on component profiles: (1) non-clinical, (2) addiction, somatic problems, and suicidality, (3) anger problems, (4) thought disturbance, and (5) addiction and traumatic stress. The findings support the validity of the MAYSI-2 for juvenile justice mental health screening while highlighting possible refinements in scoring in order to identify delinquent youths with distinctive psychosocial risks and needs.     

Predicting the acceptability and likelihood of lying: The interaction of personality with type of lie

The present study investigated the role of individual differences in the perceived acceptability and likelihood of different types of lies. Two-hundred and eighty seven college students completed scales assessing six personality variables (honesty, kindness, assertiveness, approval motivation, self-monitoring, and Machiavellianism) and rated 16 scenarios involving lies told for four different motives (altruistic, conflict avoidance, social acceptance, and self-gain lies). Our central hypothesis that the perceived acceptability and likelihood of lying would be predicted by interactions between personality characteristics of the rater and the type of lie being considered was supported. For each type of lie, a unique set of personality variables significantly predicted lying acceptability and likelihood.     

Personality predictors of the time course for lung cancer onset

Numerous findings suggest that personality is linked to the incidence and experience of negative health outcomes. More specifically, trait negative affect is negatively related to a number of health outcomes. The current study expands our understanding of the link between personality and disease by examining the time course for lung cancer onset. In a sample of patients who had recently undergone surgical resection for lung cancer, a variety of negative affect related personality variables were assessed to determine their relationship with age at surgery. After controlling for smoking behavior, it was found that trait negative affect was associated with time course for lung cancer onset, such that those with higher (vs. lower) levels of trait negative affect manifested lung cancer earlier in their lives. Thus, trait negative affect represents an independent risk factor among those prone to lung cancer (i.e., smokers).