The effects of a self-management treatment package on daily step count in university students with depressive symptoms

Research demonstrates that exercise can decrease depressive symptoms, yet it is infrequently prescribed as an intervention. Self-management techniques offer an effective and cost-efficient approach to increase engagement in physical activity. The purpose of this study was to evaluate the efficacy of goal setting, self-monitoring, and feedback for increasing daily step count in university students (N = 4) reporting depressive symptoms. The treatment was efficacious for increasing steps for three participants with varying levels of consistency. All participants showed a decrease in some depression symptoms on the University Student Depression Inventory. Expert ratings on the Clinical Global Impression Scale indicated improvement in global functioning for three participants. Additional research is needed to determine the efficacy of this intervention package for increasing daily steps and the relation to depression symptoms.     

Spontaneous play in two-year-olds born to substance-abusing mothers

The aim of the study was to determine if spontaneous play was altered in 2-year-olds born to polysubstance-abusing mothers. The study is part of a longitudinal research project of chronic substance-abusing mothers and their children living in poverty in the inner city of Los Angeles, identified in the hospital at birth by positive urine-toxicology screens, and compared to non-substance-abusing mothers and their children living in the same geographic area, of similar ethnic group and socioeconomic and marital status. The behavior of the 31 target and 21 comparison children in the 16-minute procedure was measured by frequency counts of manipulative, functional, and symbolic acts as well as by ratings of the quality of play. The play of the prenatally drug-exposed children differed from the comparison group by demonstrating significantly more immature play strategies, less sustained attention, more deviant behaviors, and fewer positive social interactions with their caregivers.     

Disaster mental health services following the 1995 Oklahoma City bombing: modifying approaches to address terrorism

How did the 1995 Oklahoma City bombing differ from prior disasters and what implications did it have for disaster mental health services and service delivery? The federal disaster mental health approach in this country developed largely out of experiences with natural disasters. The 1995 Oklahoma City bombing differed in several important ways, including the large number of human casualties, higher rates of psychopathology, and an extended period of concern due to the criminal investigation and trials, which suggested the need to consider modifications in the program. Outreach was extensive, but psychiatric morbidity of direct victims was greater than that of victims of natural disasters, emphasizing the need for attention to the triage and referral process. Other concerns that warrant consideration include practices related to record keeping and program evaluation.     

Imagination inflation is a fact, not an artifact: A reply to Pezdek and Eddy

Pezdek and Eddy (2001) claim to prove that imagination inflation is a spurious effect caused by regression to the mean (RTM). They make four predictions about what patterns of data would demonstrate a genuine effect for imagination versus those that would be explainable by RTM. We review each of those predictions, and demonstrate significant problems with them. We conclude that imagination inflation is a genuine effect, and that Pezdek and Eddy’s work has contributed to the growing research showing that when people imagine fictitious events from long ago, they become more confident that those false events were genuine experiences.     

Is the Effect of Behavioral Synchrony on Cooperative Behavior Mediated by Pain Threshold?

Synchronized behavior results in a variety of prosocial behaviors. Research has also implicated that interpersonal synchrony affects pain thresholds, inferred as indicative of endorphin levels. The current study was designed to see if these pain threshold effects mediated the effect of synchrony on interpersonal cooperation. Twenty six individuals were randomly assigned to complete a 30 minute run on a treadmill in either a synchronized or nonsynchronized condition. Pain threshold was measured both before and after exercise as an indicator of endorphin activity. A postrun social investment game measured interpersonal cooperation. Analyses showed that there was a significant direct relationship between condition and cooperation but that this effect was not mediated by pain threshold.     

Comparing instructor-led,video-model,and no-instruction control tutorials for creating single-subject graphs in Microsoft Excel: A systematic replication and extension

Visual inspection of single-subject data is the primary method for behavior analysts to interpret the effect of an independent variable on a dependent variable; however, there is no consensus on the most suitable method for teaching graph construction for single-subject designs. We systematically replicated and extended Tyner and Fienup (2015) using a repeated-measures between-subjects design to compare the effects of instructor-led, video-model, and no-instruction control tutorials on the graphing performance of 81 master's students with some reported Microsoft Excel experience. Our mixed-design analysis revealed a statistically significant main effect of pretest, tutorial, and posttest submissions for each tutorial group and a nonsignificant main effect of tutorial group. Tutorial group significantly interacted with submissions, suggesting that both instructor-led and video-model tutorials may be superior to providing graduate students with a written list of graphing conventions (i.e., control condition). Finally, training influenced performance on an untrained graph type (multielement) for all tutorial groups.     

Maintenance rehearsal: the key to the role attention plays in storage and forgetting

Research with the maintenance-rehearsal paradigm, in which word pairs are rehearsed as distractor material during a series of digit recall trials, has previously indicated that low frequency and new word pairs capture attention to a greater degree than high frequency and old word pairs. This impacts delayed recognition of the pairs and interferes with immediate digit recall. The effect on immediate digit recall may provide the missing converging evidence for the role of attention in memory. In the current study, 3 experiments were conducted to further investigate the role of attention capture and novelty in storage and forgetting. In addition to the previously established effects, the novelty of switching rehearsal between 2 pairs was found to impair both digit recall and memory for the first pair. The attentional effects we obtained were dependent upon participant expectation, and forgetting appears to be due to interference with consolidation rather than decay or traditional associative interference. Finally, the attentional effects we observed in associative recognition were primarily reflected in a lowering of the false alarm rate with increases in the strength of the parent pairs. Although dual-process models can accommodate this finding on the assumption that recollection is invoked at test alongside familiarity, we showed that the level of recall in this paradigm is so small that recollection can be ruled out. Accordingly, our results are challenging for the existing models of associative recognition to accommodate.