On the capacity of attention: its estimation and its role in working memory and cognitive aptitudes

Working memory (WM) is the set of mental processes holding limited information in a temporarily accessible state in service of cognition. We provide a theoretical framework to understand the relation between WM and aptitude measures. The WM measures that have yielded high correlations with aptitudes include separate storage-and-processing task components, on the assumption that WM involves both storage and processing. We argue that the critical aspect of successful WM measures is that rehearsal and grouping processes are prevented, allowing a clearer estimate of how many separate chunks of information the focus of attention circumscribes at once. Storage-and-processing tasks correlate with aptitudes, according to this view, largely because the processing task prevents rehearsal and grouping of items to be recalled. In a developmental study, we document that several scope-of-attention measures that do not include a separate processing component, but nevertheless prevent efficient rehearsal or grouping, also correlate well with aptitudes and with storage-and-processing measures. So does digit span in children too young to rehearse.     

Parenting in mothers with and without attention-deficit/hyperactivity disorder

The authors examined the impact of maternal attention-deficit/hyperactivity disorder (ADHD) on parenting behaviors. Sixty mothers between the ages of 31 and 50 with (n = 30) and without (n = 30) ADHD and their 8- to 14-year-old children with ADHD completed self-report and laboratory measures of monitoring of child behavior, consistency in parenting, and parenting problem-solving abilities. These parenting behaviors were selected because of their established links to the development of child behavior problems. As predicted, mothers with ADHD were found to be poorer at monitoring child behavior and less consistent disciplinarians compared with mothers without ADHD. There was some evidence to support the prediction that mothers with ADHD were less effective at problem solving about childrearing issues than control mothers. The differences between the 2 groups of mothers persisted after child oppositional and conduct-disordered behavior were controlled. These results indicate that parenting is an area of functioning that requires more attention in adult ADHD research.     

The time course of spatial memory distortions

Four experiments investigated the memory distortions for the location of a dot in relation to two horizontally aligned landmarks. In Experiment 1, participants reproduced from memory a dot location with respect to the two landmarks. Their performance showed a systematic pattern of distortion that was consistent across individual participants. The three subsequent experiments investigated the time course of spatial memory distortions. Using a visual discrimination task, we were able to map the emergence of spatial distortions within the first 800 msec of the retention interval. After retention intervals as brief as 50 msec, a distortion was already present. In all but one experiment, the distortion increased with longer retention intervals. This early onset of spatial memory distortions might reflect the almost immediate decay of detailed spatial information and the early influence of an enduring spatial memory representation, which encodes spatial information in terms of the perceived structure of space.     

Responsiveness in Interactions of Mothers and Sons with ADHD: Relations to Maternal and Child Characteristics

We observed mother–child interactions, at baseline, in 136 families of 7–10-year-old boys with attention-deficit/hyperactivity disorder (ADHD) who were part of a large clinical trial, the Multimodal Treatment Study of Children with ADHD. Independent coders rated stylistic aspects of maternal behavior and factor analyses revealed a responsiveness factor that included overall responsiveness and sensitivity to the child, warmth and acceptance, and appropriate control. We examined relations between maternal responsiveness and (a) maternal depressive symptoms and maternal childhood ADHD symptoms, and (b) boys' ADHD and conduct problem symptoms. Controlling for all other variables, maternal responsiveness displayed a unique negative association with mother-reported child conduct problems, but not with child ADHD symptoms, and also was negatively related to maternal depressive symptoms. We discuss the unique association between mother-reported child conduct problems and parenting, and note the utility of studying parenting style in families of children with ADHD. We describe the results within the framework of a transactional model.     

Inducing Knowledgeability From Niceness: Children Use Social Features for Making Epistemic Inferences

In many ways, evaluating informants based on their features is a problem of induction: Children rely on the assumption that observable informant characteristics (e.g., traits, behaviors, social categories) will predict unobservable characteristics (e.g., future behavior, knowledge states, intentions). Yet to make sensible inferences, children must recognize what informant features are relevant for what types of inferences. The current research investigated whether preschoolers use social features (e.g., niceness) for making epistemic inferences and, conversely, whether they use intellectual features (e.g., expertise) for making social inferences. In the study, 96 preschoolers (M_age = 4.96 years) were asked to attribute knowledge and behaviors to a mean informant, a nice informant, and a neutral informant. Between subjects, we varied which informant had expertise. We found that when attributing knowledge, children used both features: attributing more knowledge to nicer informants, but also attributing more knowledge to an informant when he had expertise. In contrast, when making social inferences, children relied primarily on social features.     

Restricted Maximum Likelihood Estimation for Parameters of the Social Relations Model

In many areas of research, the round-robin design is used to study interpersonal judgments and behaviors. The resulting data are analyzed with the social relations model (SRM), whereby almost all previously published studies have used ANOVA-based methods or multilevel-based methods to obtain SRM parameter estimates. In this article, the SRM is embedded into the linear mixed model framework, and it is shown how restricted maximum likelihood can be employed to estimate the SRM parameters. It is also described how the effect of covariates on the SRM-specific effects can be estimated. An example is presented to illustrate the approach. We also present the results of a simulation study in which the performance of the proposed approach is compared to the ANOVA method.     

Perceived Fairness,Marital Conflict,and Depression: A Dyadic Data Analysis

This study explored associations among perceived fairness, marital conflict, and depression. Data for this study included married participants (n = 401 couples) from the Marriage Matters Panel Survey of Newlywed Couples. This study tested three autoregressive cross-lagged models and hypothesized that fairness would precede marital conflict, and continued conflict would lead to greater depression. The final model found that wives' Time 1 perceived fairness was associated with their husbands' conflict at Time 2, and that husbands' perceived fairness at Time 2 was associated with their wives' depression at Time 3. Findings suggest some support for addressing perceived fairness with couples.     

Emotional Valence and Perceived Event Frequency Affect Memory Accuracy for a Personally Relevant Life Event

False autobiographical remembering is known to be affected both by an event's emotional valence and its perceived frequency (PEF). Here, we present a procedure that enables the assessment of retrieval accuracy for details of an overarching personally relevant real‐life event (a graduation ceremony) while taking into account variations in both their valence and PEF. Former university students who attended the same graduation ceremony completed a questionnaire with true and false statements about the ceremony. Their task was to judge whether the event details were true. Event details were previously rated for valence (positive vs. negative) and PEF (high vs. low) and their truth status was confirmed with original video footage from the ceremony. The results showed that valence modulated the effect of PEF on memory accuracy in that a decrease in false memory judgements was observed only for negative low‐PEF (implausible) event details. These results are interpreted within the affect‐as‐information framework. Copyright © 2016 John Wiley & Sons, Ltd.     

On the preattentive accessibility of stereoscopic disparity: Evidence from visual search

We examined the generality of the claim that stereoscopic disparity is detectable in parallel across the visual field. Using a search paradigm with random-dot stereograms, we varied the relative disparity of target and distractor items. When both target and distractors had crossed disparities, both search functions (i.e., target in front of distractors and target behind distractors) were linear with positive slopes. When both target and distractors had uncrossed disparities, the pattern of results depended upon whether the target was in front of or behind the distractors—specifically, when the target was in front of the distractors, search functions were similar to those seen for “crossed” search, but when the target was behind the distractors, a nonlinear search function was found. Finally, when the target and distractors straddled the plane of fixation, a nonlinear search function was found when the target was in front of the distractors; however, when the target was behind the distractors, a linear search function with a large positive slope was found. We show that the nonlinear search functions are consistent with the effects of an intervening global surface percept. We also show that the size of the stimulus display may be a factor in some relative depth cases. Additionally, we replicate Steinman’s (1987) finding that search is parallel when the distractors are located at the plane of fixation and the target disparity is crossed, eliminating monocular and spatial cues to target presence that may have been present in his original study. In a final control experiment, we showed that reaction times did not increase with set size when observers performed another kind of perceptual task on similar random-dot stereogram displays. This eliminates the possibility that some of the results obtained here can be explained by increases in the difficulty of perceiving/fusing the stimuli when the number of distractors is increased.