Aging and Working Memory Inside and Outside the Focus of Attention: Dissociations of Availability and Accessibility

ABSTRACT

Two experiments used the N-Back task to test for age differences in working memory inside and outside the focus of attention. Manipulations of the difficulty of item-context binding (Experiment 1) and of stimulus feature binding (Experiment 2) were used to create conditions that varied in their demand on working memory, with the expectation that greater demand might increase age differences in focus-switching costs and the search rate outside the focus of attention. Results showed, however, that although age differences were evident in measures of overall speed and accuracy, and the manipulations significantly affected response times and accuracy in the expected direction, the experimental manipulations had no impact on age differences. Findings instead pointed to age-related reductions in accuracy but not speed of focus-switching and search outside the focus of attention. Thus, age-related deficits appear to involve the availability of representations in working memory, but not their accessibility.     

Reality Bytes: Reply to Commentaries

The author discusses Danielle Knafo’s paper, “Guys and Dolls,” from the developmental perspective of transitional space and the interplay of intersubjectively constructed spontaneous gestures, in the co-construction of a new narrative in the process of psychoanalytic treatment.     

A Basic TAT Set

The 10 TAT cards judged most valuable for a basic test set were selected by a total of 170 highly experienced psychologists. The judges' choices, separately determined for adults and children, were very consistent. For example, 86.7% of judges in the adult series and 92.5% of judges in the child series listed Picture 1 (Boy-Violin) within their first 10 choices. Rankings of the 10 most frequently chosen cards were closely parallel in the adult and child series. Utilizing these findings a recommended Basic TAT set of eight cards (Pictures 1, 2, 3BM, 4, 6BM, 7BM, 13MF, 8BM) is proposed to enhance development of the TAT for clinical research and teaching purposes.     

Early Childhood Assessments of Community Pediatric Professionals Predict Autism Spectrum and Attention Deficit Hyperactivity Problems

For clinically referred children with Autism Spectrum Disorder (ASD) or Attention Deficit/Hyperactivity Disorder (ADHD) several early indicators have been described. However, knowledge is lacking on early markers of less severe variants of ASD and ADHD from the general population. The aim of the present study is to identify early indicators of high risk groups for ASD and ADHD problems based on routine data from community pediatric services between infancy and age four. Data are from 1,816 participants who take part in Tracking Adolescents’ Individual Lives Survey (TRAILS), a longitudinal study. Information on early developmental factors was extracted from charts of routine Preventive Child Healthcare (PCH) visits. To assess ASD and ADHD problems, respectively, we used the Children’s Social Behavior Questionnaire (CSBQ) and the Child Behavior Checklist (CBCL), filled out by parents three times between the ages of 11 and 17. Note that these are parent ratings and not diagnostic instruments performed by trained clinicians. Male gender, low birth weight, low level of education of the mother, social, behavioral, language, psychomotor and eating problems significantly predicted ASD problems (odds ratios (OR) between 1.34 and 2.41). ADHD problems were also predicted by male gender and low level of education of the mother and by maternal smoking during pregnancy, good gross motor skills in first year, early attention and hyperactivity problems, and absence of parent-reported positive behavior (ORs between 1.36 and 1.74). Routine data on early childhood from PCH services are predictive for ASD and ADHD problems in adolescents in the general population. The PCH services are a useful setting to identify high risk groups, and to monitor them subsequently.     

Aging and working memory inside and outside the focus of attention: dissociations of availability and accessibility

Two experiments used the N-Back task to test for age differences in working memory inside and outside the focus of attention. Manipulations of the difficulty of item-context binding (Experiment 1) and of stimulus feature binding (Experiment 2) were used to create conditions that varied in their demand on working memory, with the expectation that greater demand might increase age differences in focus-switching costs and the search rate outside the focus of attention. Results showed, however, that although age differences were evident in measures of overall speed and accuracy, and the manipulations significantly affected response times and accuracy in the expected direction, the experimental manipulations had no impact on age differences. Findings instead pointed to age-related reductions in accuracy but not speed of focus-switching and search outside the focus of attention. Thus, age-related deficits appear to involve the availability of representations in working memory, but not their accessibility.     

成人日常问题解决的老化研究

日常问题解决能力是近十几年来老年心理学中研究比较活跃的一个领域。本文介绍了有关日常问题解决研究的四种理论,即心理测量的智力内隐理论、形式后思维的辨证思维理论、信息加工理论和社会认知与智慧理论,及其初步的研究成果,并进一步指出在理论上整合和在实践中开展干预的研究方向。     

A reappraisal of the Emma episode and the specimen dream

Schur's (1966, 1972) speculations that the "specimen dream" exculpates Fliess rather than Freud and that Freud was unaware of this are challenged. Schur's assertion that Freud was not aware of "current conflict" when writing The Interpretation of Dreams is countered with the previously unpublished "Completion of the Analysis" of the dream of "Running up the Stairs," which illustrates Freud's withholding of "current conflict" from his published associations. The view is advanced that Freud's and Fliess's treatment of Emma Eckstein might have been an important element in Freud's self-analysis because it was a repetition of his childhood conflicts. The identities of Emma Eckstein (operated on by Fliess) and Anna Hammerschlag Lichtheim, together with the previously unnoticed, published exchange between Abraham and Freud, are used to add further insight into Freud's interpretation of the dream. In addition, new material concerning Freud's father's terminal illness, beginning in July, 1985, casts further light on the specimen dream as well as others. It is argued that concerns about Martha Freud's sixth pregnancy and wishes for improved contraception were important determinants of the dream and part of the undisclosed associations. It is also argued that rivalrous elements of the associations are elaborated in the later non vixit dream.     

Adolescent identity--a qualitative approach: self-concept, existential questions and adult contacts

In-depth interviews were performed with 12 adolescents (Swedish students, 16-19 years). Three questions were probed; what do adolescents say on the subjects of (a) themselves, (b) their existential questions, and (c) their adult contacts. The first two questions were aimed at elucidating the process of identity development, the last one at factors that may be influencing this process. The results showed that (a) balancing and controlling one's own needs and wishes in relation to others' was a central issue, (b) existential questions mainly concerned the personal future, (c) adult contacts outside the family were scarce and (d) all respondents expressed a need for adult contacts as sources of knowledge and experience. The conclusions are that identity formation during late adolescence consists of integrative issues where adults play a specific and important role.     

Additive conjoint isotonic probabilistic models (ADISOP)

The ISOP-model or model of twodimensional or bi-isotonicity (Scheiblechner, 1995) postulates that the probabilities of ordered response categories increase isotonically in the order of subject ability and item easiness. Adding a conventional cancellation axiom for the factors of subjects and items gives the ADISOP model where the c.d.f.s of response categories are functions of an additive item and subject parameter and an ordinal category parameter. Extending cancellation to the interactions of subjects and categories as well as of items and categories (independence axiom of the category factor from the subject and item factor) gives the CADISOP model (completely additive model) in which the parallel c.d.f.s are functions of the sum of subject, item and category parameters. The CADISOP model is very close to the unidimensional version of the polytomous Rasch model with the logistic item/category characteristic(s) replaced by nonparametric axioms and statistics. The axioms, representation theorems and algorithms for model fitting of the additive models are presented.