Efficiency and accuracy of visual search develop at different rates from early childhood through early adulthood

Psychonomic Bulletin & Review - Most studies of visual search across the life span have focused on classic feature and conjunction searches in which observers search for a fixed, simple shape...     

Oceans of stimuli: an individual-based model to assess the role of olfactory cues and local enhancement in seabirds’ foraging behaviour

Animal Cognition - Oceans are extremely dynamic environments, which poses challenges for top-predators such as seabirds to find food resources. Yet, seabirds evolved sensorial abilities (olfactory...     

Effects of memory load on visual search

It remains unclear how memory load affects attentional processes in visual search (VS). No effects, as well as beneficial and detrimental effects of memory load, have been found in this type of task. The main goal of the present research was to explore whether memory load has a modulating effect on VS by means of a different attentional set induced by the order of trials (mixed vs. blocked) and by the time presentation of visual display (long vs. short). In Experiment 1, we randomized the order of type of trial (5, 10 and 15 items presented in the display) while it remained constant (10 items) in Experiments 2A and 2B. In the later experiments, we also changed time presentation of visual display (3000 vs. 1300 ms, respectively). Results showed no differential effects of memory load in Experiments 1 and 2A, but they showed up in Experiment 2B: RTs were longer in the attentional task for trials under high memory load conditions. Although our hypothesis of the attentional set is supported by the results, other theoretical implications are also worth discussing in order to better understand how memory load may modulate attentional processes in VS.     

Group CBT for Externalizing Disorders in Urban Schools: Effect of Training Strategy on Treatment Fidelity and Child Outcomes

Public schools are an ideal setting for the delivery of mental health services to children. Unfortunately, services provided in schools, and more so in urban schools, have been found to lead to little or no significant clinical improvements. Studies with urban school children seldom report on the effects of clinician training on treatment fidelity and child outcomes. This study examines the differential effects of two levels of school-based counselor training: training workshop with basic consultation (C) vs. training workshop plus enhanced consultation (C +) on treatment fidelity and child outcomes. Fourteen school staff members (counselors) were randomly assigned to C or C +. Counselors implemented a group cognitive behavioral therapy protocol (Coping Power Program, CPP) for children with or at risk for externalizing behavior disorders. Independent coders coded each CPP session for content and process fidelity. Changes in outcomes from pre to post were assessed via a parent psychiatric interview and interviewer-rated severity of illness and global impairment. Counselors in C + delivered CPP with significantly higher levels of content and process fidelity compared to counselors in C. Both C and C + resulted in significant improvement in interviewer-rated impairment; the conditions did not differ from each other with regard to impairment. Groups did not differ with regard to pre- to- posttreatment changes in diagnostic severity level. School-based behavioral health staff in urban schools are able to implement interventions with fidelity and clinical effectiveness when provided with ongoing consultation. Enhanced consultation resulted in higher fidelity. Enhanced consultation did not result in better student outcomes compared to basic consultation. Implications for resource allocation decisions with staff training in EBP are discussed.     

A Replication of the Reker and Cousins’ Study About the Complementarity Between the Purpose-In-Life Test (PIL) and the Seeking of Noetic Goals (SONG) Among Spanish Young People

The main aim of this study was to replicate the Reker and Cousins’ (1979) work about the complementarity between the the Purpose-In-Life Test (PIL), which indicates the degree to which the person has found meaning and purpose in life (presence of meaning), and the Seeking of Noetic Goals (SONG), which measures the degree to which the person is motivated to find meaning and purpose in life (search for meaning). Participants were 349 Spanish undergraduates (224 women, 64.20 %, and 125 men, 35.80 %) between 18 and 26 years old, M = 20.81, SD = 2.17. Principal Component Analysis showed eight factors: four mainly related to the presence of meaning and four mainly related to the search for meaning. The PIL contributed four factors to presence of meaning, whereas the SONG contributed four factors to the search for meaning. The results confirmed the factorial structure, internal consistency, and validity of both scales and their complementarity.     

A Cross-Sectional and Longitudinal Test of the Low Sensitivity to Threat and Affiliative Reward (STAR) Model of Callous-Unemotional Traits Among Spanish Preschoolers

Research on Child and Adolescent Psychopathology - Despite advances in the theoretical and empirical literature, a better understanding of the etiological determinants of callous-unemotional (CU)...     

Prevalence of depression during the COVID-19 outbreak: A meta-analysis of community-based studies

Introduction: COVID-19 pandemic, declared on March 11, 2020, constitute an extraordinary health, social and economic global challenge. The impact on people's mental health is expected to be high. This paper sought to systematically review community-based studies on depression conducted during the COVID-19 and estimate the pooled prevalence of depression. Method: We searched for cross-sectional, community-based studies listed on PubMed or Web of Science from January 1, 2020 to May 8, 2020 that reported prevalence of depression. A random effect model was used to estimate the pooled proportion of depression. Results: A total of 12 studies were included in the meta-analysis, with prevalence rates of depression ranging from 7.45% to 48.30%. The pooled prevalence of depression was 25% (95% CI: 18% ? 33%), with significant heterogeneity between studies (I² = 99.60%, p < .001). Conclusions: Compared with a global estimated prevalence of depression of 3.44% in 2017, our pooled prevalence of 25% appears to be 7 times higher, thus suggesting an important impact of the COVID-19 outbreak on people's mental health. Addressing mental health during and after this global health crisis should be placed into the international and national public health agenda to improve citizens’ wellbeing.     

The relation of perceived situation similarity to perceived behavior similarity: Implications for social learning theory

A number of theories suggest that people behave similarly in similar situations. Social learning theory in particular suggests that people behave similarly in situations perceived to be similar in their pattern of reinforcement contingencies. This study used two measures of perception of behavior similarity and three measures of perception of situation similarity for 20 situations chosen by each of II female subjects as beingss characteristic of her current life. Measures of perceived behavior similarity included paired comparison judgments and analyses of similarity of ratings of behavior probabilities. Measures of perceived situation similarity included paired comparison judgments and analyses of similarity of ratings of outcome or reinforcement contingencies for the specified behaviors, including both internal and external reinforcers. In addition, reliability estimates were obtained on some tasks. Results indicated the following: (1) Generally there was a statistically significant relationship between measures of perceived situation similarity and measures of perceived behavior similarity. The magnitude of the relationship varied considerably from subject to subject. (2) Measures of the same variables did not show better agreement with one another than they did with measures of the different variables, despite evidence of adequate reliability. The data suggested general support for social learning theory but also evidence that factors other than perceived reinforcers in the situation influence how situations are perceived and how people behave in them.     

A functional analysis of obsessive-compulsive problems with related therapeutic procedures

This report describes the application of a functional analysis to obsessions and compulsions. The approach emphasizes a search for the independent variables which maintain obsessive-compulsive behavior in the individual client: then therapeutic procedures are designed to counteract the specific maintaining variables. The application, and outcome, of this approach to two children and one adult is described.     

Using the regulation of accuracy to study performance when the correct answer is not known

We examined memory performance in multiple‐choice questions when correct answers were not always present. How do participants answer when they are aware that the correct alternative may not be present? To answer this question we allowed participants to decide on the number of alternatives in their final answer (the plurality option), and whether they wanted to report or withhold their answer (report option). We also studied the memory benefits when both the plurality and the report options were available. In two experiments participants watched a crime and then answered questions with five alternatives. Half of the questions were presented with the correct alternative and half were not. Participants selected one alternative and rated confidence, then selected three alternatives and again rated confidence, and finally indicated whether they preferred the answer with one or with three alternatives (plurality option). Lastly, they decided whether to report or withhold the answer (report option). Results showed that participants’ confidence in their selections was higher, that they chose more single answers, and that they preferred to report more often when the correct alternative was presented. We also attempted to classify a posteriori questions as either presented with or without the correct alternative from participants’ selection. Classification was better than chance, and encouraging, but the forensic application of the classification technique is still limited since there was a large percentage of responses that were incorrectly classified. Our results also showed that the memory benefits of both plurality and report options overlap.