Postnatal depression and infant cognitive and motor development in the second postnatal year: The impact of depression chronicity and infant gender

A large body of literature has investigated the effects of postnatal depression on infant development. However, the particular circumstances in which depression is associated with adverse effects remain unresolved. Factors, such as the nature of depression (e.g., duration and severity) and the context with respect to other risk and protective factors (e.g., socioeconomic status and child gender) have been suggested as moderators of the effects of postnatal depression on infant outcomes. This study examined the impact of brief and chronic depression in a non-poverty sample of 112 mothers and their infants. Infant language development was assessed at 12 months, and at 15 months the Bayley Scales of Infant Development-II were administered. Chronic maternal depression, lasting throughout the first 12 months postpartum and beyond, was associated with lower infant cognitive and psychomotor development, with the effects being similar for boys and girls, while brief depression did not significantly impact the infant performance. Language development and infant behavior during testing were equivalent across the groups. The relatively high rates of motor development delay associated with chronic maternal depression found in this study are discussed along with the methodological issues and models of cumulative risk.     

COGNITIVE RESTRUCTURING AND MENTAL CONTAMINATION: AN EMPIRICAL RE-CONCEPTUALIZATION

The main goal of this article is to propose a cognitive technology for blocking the impact of mental contamination during cognitive restructuring in cognitive-behavioral and rational-emotive therapy, by using fundamental research findings from cognitive psychology. In step 1, after a review of the relevant cognitive and social psychology literature, the authors elaborated several techniques hypothesized to control mental contamination. In step 2—Experiment I—the authors tested the efficacy of these techniques in blocking mental contamination. The three techniques that proved to be effective in controlling mental contamination were: (a) the global restructuring technique; (b) the rational anticipation technique; (c) the incompatible information technique. In step 3—Experiment II—these techniques were adapted and tested in clinical setting using a single case experiment design-multiple baselines across subjects (five subjects with simple phobia). The techniques were shown to be effective in both stimulating the assimilation of new adaptive cognitions (i.e., global restructuring and incompatible information technique) and in preventing relapse (i.e., rational anticipation technique). Future directions for research are discussed. Address correspondence to Daniel David, Ph.D., Department of Psychology and Center for Cognitive and Behavioral Psychotherapies, Babes-Bolyai University, No. 37, Gh. Bilascu Street, 3400, Cluj-Napoca, Cluj, Romania; e-mail: danieldavid@psychology.ro.     

Unique Associations between Childhood Temperament Characteristics and Subsequent Psychopathology Symptom Trajectories from Childhood to Early Adolescence

Existing research suggests that temperamental traits that emerge early in childhood may have utility for early detection and intervention for common mental disorders. The present study examined the unique relationships between the temperament characteristics of reactivity, approach-sociability, and persistence in early childhood and subsequent symptom trajectories of psychopathology (depression, anxiety, conduct disorder, and attention-deficit hyperactivity disorder; ADHD) from childhood to early adolescence. Data were from the first five waves of the older cohort from the Longitudinal Study of Australian Children (n = 4983; 51.2% male), which spanned ages 4–5 to 12–13. Multivariate ordinal and logistic regressions examined whether parent-reported child temperament characteristics at age 4–5 predicted the study child’s subsequent symptom trajectories for each domain of psychopathology (derived using latent class growth analyses), after controlling for other presenting symptoms. Temperament characteristics differentially predicted the symptom trajectories for depression, anxiety, conduct disorder, and ADHD: Higher levels of reactivity uniquely predicted higher symptom trajectories for all 4 domains; higher levels of approach-sociability predicted higher trajectories of conduct disorder and ADHD, but lower trajectories of anxiety; and higher levels of persistence were related to lower trajectories of conduct disorder and ADHD. These findings suggest that temperament is an early identifiable risk factor for the development of psychopathology, and that identification and timely interventions for children with highly reactive temperaments in particular could prevent later mental health problems.     

Auditory context effects in picture naming investigated with event-related fMRI

Naming an object entails a number of processing stages, including retrieval of a target lexical concept and encoding of its phonological word form. We investigated these stages using the picture-word interference task in an fMRI experiment. Participants named target pictures in the presence of auditorily presented semantically related, phonologically related, or unrelated distractor words or in isolation. We observed BOLD signal changes in left-hemisphere regions associated with lexical-conceptual and phonological processing, including the midto-posterior lateral temporal cortex. However, these BOLD responses manifested as signal reductions for all distractor conditions relative to naming alone. Compared with unrelated words, phonologically related distractors showed further signal reductions, whereas only the pars orbitalis of the left inferior frontal cortex showed a selective reduction in response in the semantic condition. We interpret these findings as indicating that the word forms of lexical competitors are phonologically encoded and that competition during lexical selection is reduced by phonologically related distractors. Since the extended nature of auditory presentation requires a large portion of a word to be presented before its meaning is accessed, we attribute the BOLD signal reductions observed for semantically related and unrelated words to lateral inhibition mechanisms engaged after target name selection has occurred, as has been proposed in some production models.     

Examining the Link Between Infant Attachment and Child Conduct Problems in Grade 1

Abtract  We examined the extent to which infant attachment status is directly related to child conduct problems 6 years later, and assessed the potential mediating roles of hostile parenting and maternal depression. The sample included 84 adolescent mothers and their children (45 girls, 39 boys). Infant attachment status was assessed using the Strange Situation when the study children were 1-year-old. Hostile parenting was coded during a parent–child interaction task when the study children were 4.5-years-old. Maternal depression was self-rated, also when the study children were 4.5-years-old, using the Beck Depression Inventory. Mothers reported child conduct problems at Grade 1 on the Child Behavior Checklist. Infant attachment status at 1 year of age was directly related to child conduct problems but not to hostile parenting or maternal depression. Neither hostile parenting nor maternal depression mediated the relationship between infant attachment status and child conduct problems. However, the pattern of relations differed by attachment security. For securely attached children, maternal depression, but not hostile parenting, was directly related to conduct problems. For insecurely attached children, hostile parenting, but not maternal depression, was directly related to child conduct problems. Implications for intervention and future research are discussed.     

Susan Bredlau, the other in perception: a phenomenological account of our experiences of other persons

Continental Philosophy Review -     

The aesthetic appeal of minimal structures: judging the attractiveness of solutions to traveling salesperson problems

Ormerod and Chronicle (1999) reported that optimal solutions to traveling salesperson problems were judged to be aesthetically more pleasing than poorer solutions and that solutions with more convex hull nodes were rated as better figures. To test these conclusions, solution regularity and the number of potential intersections were held constant, whereas solution optimality, the number of internal nodes, and the number of nearest neighbors in each solution were varied factorially. The results did not support the view that the convex hull is an important determinant of figural attractiveness. Also, in contrast to the findings of Ormerod and Chronicle, there were consistent individual differences. Participants appeared to be divided as to whether the most attractive figure enclosed a given area within a perimeter of minimum or maximum length. It is concluded that future research in this area cannot afford to focus exclusively on group performance measures.     

Processing Illness Information: The Role of Disease Prototypes

Recently Bishop and Converse (1986) proposed that information about physical symptoms is interpreted by relating those symptoms to preexisting disease prototypes. The two present studies further examined this formulation by testing hypotheses concerning the speed of processing symptom information as well as associations made to sets of physical symptoms as a function of prototypicality. As predicted, Experiment 1 showed that response time to highly prototypical symptom sets was significantly shorter than that for symptom sets containing irrelevant symptoms. Also as predicted, the results of Experiment 2 showed significant differences in the associations made by experiment participants to symptom sets as a function of the prototypicality of the symptoms in those sets. Participants made more category-based associations to highly prototypical symptom sets than to those lower in prototypicality but made more associations to individual symptoms for symptom sets low in prototypicality. Implications for the prototype hypothesis and for understanding the processing of illness information are discussed.