Life-narrative and word-cued autobiographical memories in centenarians: comparisons with 80-year-old control,depressed, and dementia groups

Centenarians provided autobiographical memories to either a request for a life narrative or a request to produce autobiographical memories to cue words. Both methods produced distributions with childhood-amnesia, reminiscence-bump, and recency components. The life-narrative method produced relatively more bump memories at the expense of recent memories. The life-narrative distributions were similar to those obtained from 80-year-old adults without clinical symptoms and from 80-year-old Alzheimer's dementia and depression patients, except that the centenarians had an additional 20-year period of relatively low recall between the bump and recency components. The centenarians produced more emotionally neutral memories than the other three groups and produced fewer and less detailed memories than the non-clinical 80-year-old sample.     

Adolescent Substance Use: Preliminary Examinations of School and Neighborhood Context

In considering the influences of microsystems on adolescent substance use, familial and peer contexts have received the most extensive attention in the research literature. School and neighborhood settings, however, are other developmental contexts that may exert specific influences on adolescent substance use. In many instances, school settings are organized to provide educational services to students who share similar educational abilities and behavioral repertoires. The resulting segregation of students into these settings may result in different school norms for substance use. Similarly, neighborhood resources, including models for substance use and drug sales involvement, may play an important role in adolescent substance use. We briefly review literature examining contextual influences on adolescent substance use, and present results from two preliminary studies examining the contribution of school and neighborhood context to adolescent substance use. In the first investigation, we examine the impact of familial, peer, and school contexts on adolescent substance use. Respondents were 283 students (ages 13 to 18) from regular and special education classrooms in six schools. Although peer and parental contexts were important predictors of substance use, school norms for drug use accounted for variance in adolescent use beyond that explained by peer and parental norms. Data from a second study of 114 adolescents (mean age = 15) examines neighborhood contributions to adolescent substance use. In this sample, neighborhood indices did not contribute to our understanding of adolescent substance use. Implications for prevention are presented.     

Gravity biases in a non-human primate?

Pre-school children expect falling objects to travel in a straight line even when there are clear physical mechanisms that deviate the object's path (Hood, 1995). The current study set out to determine whether this expectancy is limited to humans. Cotton-top tamarins (Saguinus oedipus oedipus), a New World monkey species, were tested on Hood's (1995) experimental task where objects are dropped down a chimney connected by an opaque tube to one of three containers. Like human children, there was a significant tendency to search in the container underneath the chimney where the food was dropped on the first trial, even though aligned chimneys and containers were never connected. These search errors suggest that there may be a gravity bias that operates when both primate species fail to understand the constraints operating on object trajectories. Unlike human children however, tamarins were generally more likely to perseverate in making errors even though repeated testing and cost incentives were used.     

Do infants possess innate knowledge structures? The con side

The central question of development is how new forms are made, how some structure, or behavior, or competence that was not there before, arises. This essay argues for a mechanistic answer to the question of the origins of new forms. And, in so doing, the essay argues that the so-called ‘innate versus learned’ dichotomy is logically flawed since ‘innate’ has no specifiable and mechanistic meaning. The essay considers first, a clear case of ‘innate’ structure: the origins of fingers and toes in embryology. The real-time mechanisms which create fingers and toes, however, are general, probabilistic, emergent and distributed across several levels of analyses. The idea of ‘innate’– even though certainly applicable – has no substantive content and yields no predictions about the nature of these mechanisms. The essay considers second, a clear case of a ‘learned’ structure: the origins of the shape bias in children’s early noun learning. Again, the developmental mechanisms are general, probabilistic, emergent and distributed across several levels of analyses. Several criticisms of the argument against ‘innate ideas’ are considered and rebutted.     

A computerized slot machine simulation to investigate the variables involved in gambling behavior

The present paper describes a computerized slot machine simulation designed to examine many of the potential variables involved in gambling behavior. This program was created in Visual Basic Version 6.0 and is designed to run on any Windows 95 or higher equipped computer. The program allows for experimenter manipulation of probabilities of payoffs, visual display of potential winning symbols, exact sequences of wins and losses, as well as pose run time questions to the subject on prespecified trials. The program records data on a trial-bytrial basis to a text file for easy importation into many data analysis and statistical programs. Conceptual and experimental questions that may be addressed with the described program are also discussed.     

Combining Trait Models of Impulsivity to Improve Explanation of Substance Use Behaviour

The UPPS‐P model of impulsivity is gaining popularity among personality and substance use researchers, but questions remain as to whether its five facets have incremental validity in explaining substance use over a more parsimonious model specifying only two facets: reward drive and rash impulsiveness. In three cross‐sectional studies (total N = 486), we investigated whether the novel components of the UPPS‐P model (negative Urgency, Premeditation, Perseverance, Sensation seeking, Positive urgency) predicted typical and problematic alcohol and cannabis use after accounting for reward drive, rash impulsiveness and trait neuroticism (assessed with the Eysenck Personality Questionnaire). Reward drive and rash impulsiveness scores were calculated using principal components analysis of multiple scales, including UPPS‐P premeditation and sensation seeking. Results showed that rash impulsiveness was a robust predictor of typical and problematic substance use. The novel facets of the UPPS‐P did not improve prediction of typical substance use. The urgency scales inconsistently predicted problematic use. Specifically, negative urgency predicted one of three measures of negative consequences from alcohol use, and positive urgency only predicted negative consequences from cannabis use. Results suggest that the three novel facets of the UPPS‐P model add little over a two component model in explaining substance use, although may provide preliminary evidence for the utility of a revised global urgency construct in explaining problematic substance use. Copyright © 2017 European Association of Personality Psychology     

The influence of Sociocultural Paradigms

This research examined the influence of sociocultural paradigms of menopause on attitudes toward menopause. Five hundred eighty-one women and men, between the ages of 18 and 85, were assigned to one of three groups distinguished by the context within which they expressed their attitudes toward menopause. The contexts were designed to reflect particular paradigms: one group described their attitudes toward three medical problems, including menopause; a second group described their attitudes toward three life transitions, including menopause; and a third group described their attitudes toward three symbols of aging, including menopause. Positive and negative subscales of the attitude questionnaires for menopause were analyzed for context and age/experience. Results indicated that the medical context elicited significantly more negative and fewer positive attitudes than did the other two contexts, particularly among older participants. In general, women's attitudes were more positive than were men's, and attitudes became increasingly positive with age and/or experience. The discussion includes the potential role of attitudes as mediating the impact of sociocultural paradigms on experience and behavior.