Dual-task processing in younger and older adults: similarities and differences revealed by fMRI

fMRI was used to explore age differences in the neural substrate of dual-task processing. Brain activations when there was a 100 ms SOA between tasks, and task overlap was high, were contrasted with activations when there was a 1000 ms SOA, and first task processing was largely complete before the second task began. Younger adults (M=21 yrs) showed activation in dorsolateral prefrontal cortex and in parietal areas as well as in ventral medial frontal cortex and sub-lobar areas. Activations in older adults (M=71 yrs) did not differ significantly from younger adults except for higher activations in occipital and polar prefrontal cortex. The results were well fit by a model with two networks managing dual-task interference, a medial prefrontal network that detects changes in the stimulus situation and maps them to associated changes in the valence of response mappings and a lateral frontal-parietal network that initiates and carries out the shift from one task to the other. The additional activations in older adults as a group and the correlations of individual differences in activation with performance were consistent with recruitment within each of these networks. Alternative explanations such as hemispheric asymmetry reduction and reactive rather than proactive processing in older adults were not supported.     

Estimating the population of survivors of suicide: seeking an evidence base

Shneidman (1973) derived an estimate of six survivors for every suicide that, in the ensuing years, has become an assumed fact underlying public health messaging campaigns in support of suicide prevention and postvention programs worldwide, in spite of it lacking either empirical testing or validation. This report offers a first test designed to derive estimates of suicide survivors and raises an array of empirical questions needing further study to reasonably address the impact of suicide on others.     

A demonstration of dual-task performance without interference in some older adults

Highly efficient dual-task processing is demonstrated when reaction time to each of two tasks does not differ between the dual-task situation and the single-task situation. This has been demonstrated reliably in younger adults; nevertheless, the two extant studies of extensive dual-task training did not find evidence for it in any elderly adult. The origins of age-related differences after training were explored in a study in which the stimuli for the two tasks were perfectly redundant although two distinct responses were required. The dual-task situation thus greatly reduced the demands of stimulus categorization while still requiring two response selections and two response executions. After only limited training 8 of 8 younger adults and 5 of 8 older adults showed performance consistent with highly efficient processing. Three older adults failed to show this even after 12 training sessions. The results implicate stimulus categorization more than response selection as an important locus of inefficient dual-task processing, particularly for older adults.     

The ease-of-processing heuristic and the stability bias: dissociating memory, memory beliefs, and memory judgments

Judgments about memory are essential in promoting knowledge; they help identify trustworthy memories and predict what information will be retained in the future. In the three experiments reported here, we investigated the mechanisms underlying predictions about memory. In Experiments 1 and 2, single words were presented once or multiple times, in large or small type. There was a double dissociation between actual memory and predicted memory: Type size affected predicted but not actual memory, and future study opportunities affected actual memory but scarcely affected predicted memory. The results of Experiment 3 suggest that beliefs and judgments are largely independent, and neither consistently resembles actual memory. Participants' underestimation of future learning-a stability bias-stemmed from an overreliance on their current memory state in making predictions about future memory states. The overreliance on type size highlights the fundamental importance of the ease-of-processing heuristic: Information that is easy to process is judged to have been learned well.     

The Effectiveness of Functional Family Therapy for Adolescent Behavioral and Substance Misuse Problems: A Meta‐Analysis

A systematic review of published and unpublished English language articles identified 14 studies containing 18 comparisons between functional family therapy (FFT) and another condition in the treatment of adolescent disruptive behavior and substance use disorders. In 11 of these comparisons, assignment to conditions was random, while nonrandom assignment occurred in seven studies. For both random and nonrandom comparisons, separate meta‐analyses were conducted for subgroups of studies depending on the type of comparison group used. Data from studies of untreated control groups (CTL), treatment as usual (TAU), and well‐defined alternative treatments (ALTs) were analyzed separately. Effect sizes from these six meta‐analyses were as follows: random assignment FFT versus CTL (k = 3, d = 0.48, p < .01); random assignment FFT versus TAU (k = 3, d = .20, ns); random assignment FFT versus ALT (k = 5, d = .35, p < .05); nonrandom assignment FFT versus CTL (k = 2, d = .90, ns); nonrandom assignment FFT versus TAU (k = 2, d = .08, ns); and nonrandom assignment FFT versus ALT (k = 3, d = .75, p < .001). These results provide support for the effectiveness of FFT compared with untreated controls and well‐defined ALTs, such as cognitive behavior therapy, other models of family therapy, and individual and group therapy for adolescents.     

What Are They Thinking? A National Study of Stability and Change in Divorce Ideation

This study reports on a nationally representative sample of married individuals ages 25–50 (N = 3,000) surveyed twice (1 year apart) to investigate the phenomenon of divorce ideation, or what people are thinking when they are thinking about divorce. Twenty‐eight percent of respondents had thought their marriage was in serious trouble in the past but not recently. Another 25% had thoughts about divorce in the last 6 months. Latent Class Analysis revealed three distinct groups among those thinking about divorce at Time 1: soft thinkers (49%), long‐term‐serious thinkers (45%), and conflicted thinkers (6%). Yet, divorce ideation was not static; 31% of Time 1 thinkers were not thinking about it 1 year later (and 36% of nonthinkers at Time 1 were thinking about it 1 year later). Also, Latent Transition Analysis revealed 49% of Time 1 long‐term‐serious thinkers, 56% of soft thinkers, and 51% of conflicted thinkers had shifted groups at Time 2, mostly in the direction of less and softer thinking about divorce. Overall, divorce ideation is common but dynamic, and it is not necessarily an indication of imminent marital dissolution.     

The Score Family Assessment Questionnaire: A Decade of Progress

This paper reviews a decade of research (2006–2016) on a family assessment instrument called the Systemic Clinical Outcome and Routine Evaluation (SCORE). The SCORE was developed in Europe to monitor progress and outcome in systemic therapy and has been adopted by the European Family Therapy Association as the main instrument for assessing the outcome in systemic family and couple therapy. There are currently six main versions of this instrument: SCORE‐40, SCORE‐15, SCORE‐28, SCORE‐29, Child SCORE‐15, and Relational SCORE‐15. It has also been translated into a number of European languages. Fifteen empirical studies of the SCORE “family of measures” have been conducted. Most have aimed to establish psychometric properties of these instruments in English and other languages. Others have used the SCORE to document the level of family adjustment in clinical samples or evaluate outcome in treatment trials. There is now sufficient evidence for the reliability and validity of the SCORE to justify the use of brief versions of this instrument to monitor progress and outcome in the routine practice of systemic therapy.     

A Randomized Controlled Trial of the Say Yes to Life (SYTL) Positive Psychology Group Psychotherapy Program for Depression: An Interim Report

An RCT was conducted to evaluate the effectiveness of the Say Yes to Life (SYTL) positive psychology group psychotherapy program compared with treatment as usual (TAU). The current interim report is based on data from the first 82 cases recruited into the trial. There were 57 trial completers at post-treatment. At pretreatment on demographic and clinical variables, there were no significant differences between trial completers and dropouts in SYTL and TAU groups. There were two main significant (p < .01) findings. Compared with TAU treatment-completers, more than twice as many SYTL treatment-completers (28 vs. 72 %) were recovered 3 months after therapy using stringent recovery criteria (no longer meeting DSM-5 diagnostic criteria for major depressive disorder and scoring below clinical cut-off scores on the Beck Depression Inventory II, the Hamilton Rating Scale for Depression, and the Montgomery–Asberg Depression Rating Scale and showing reliable change on these three measures of depressive symptom severity). Second, the overall average service use cost per case in the SYTL group was significantly lower than that of the TAU group (€726 vs.€1187). This was largely due to the lower cost of the SYTL group therapy program compared with TAU which involved individual therapy. The pattern of results in an intention-to-treat analysis was similar to that in the completer analysis, though group difference did not reach significance due to inadequate statistical power and conservative missing data imputation procedures. It is planned to collect data on 100 trial completers, based on a power analysis.