Using the memory activation capture (MAC) procedure to investigate the temporal dynamics of hypothesis generation

Research investigating top-down capture has demonstrated a coupling of working memory content with attention and eye movements. By capitalizing on this relationship, we have developed a novel methodology, called the memory activation capture (MAC) procedure, for measuring the dynamics of working memory content supporting complex cognitive tasks (e.g., decision making, problem solving). The MAC procedure employs briefly presented visual arrays containing task-relevant information at critical points in a task. By observing which items are preferentially fixated, we gain a measure of working memory content as the task evolves through time. The efficacy of the MAC procedure was demonstrated in a dynamic hypothesis generation task in which some of its advantages over existing methods for measuring changes in the contents of working memory over time are highlighted. In two experiments, the MAC procedure was able to detect the hypothesis that was retrieved and placed into working memory. Moreover, the results from Experiment 2 suggest a two-stage process following hypothesis retrieval, whereby the hypothesis undergoes a brief period of heightened activation before entering a lower activation state in which it is maintained for output. The results of both experiments are of additional general interest, as they represent the first demonstrations of top-down capture driven by participant-established WM content retrieved from long-term memory.     

Unification and Revolution: A Paradigm for Paradigms

Incommensurability was Kuhn’s worst mistake. If it is to be found anywhere in science, it would be in physics. But revolutions in theoretical physics all embody theoretical unification. Far from obliterating the idea that there is a persisting theoretical idea in physics, revolutions do just the opposite: they all actually exemplify the persisting idea of underlying unity. Furthermore, persistent acceptance of unifying theories in physics when empirically more successful disunified rivals can always be concocted means that physics makes a persistent implicit assumption concerning unity. To put it in Kuhnian terms, underlying unity is a paradigm for paradigms. We need a conception of science which represents problematic assumptions concerning the physical comprehensibility and knowability of the universe in the form of a hierarchy, these assumptions becoming less and less substantial and more and more such that their truth is required for science, or the pursuit of knowledge, to be possible at all, as one goes up the hierarchy. This hierarchical conception of science has important Kuhnian features, but also differs dramatically from the view Kuhn expounds in his The Structure of Scientific Revolutions. In this paper, I compare and contrast these two views in a much more detailed way than has been done hitherto. I show how the hierarchical view can be construed to emerge from Kuhn’s view as it is modified to overcome objections. I argue that the hierarchical conception of science is to be preferred to Kuhn’s view.     

The Relationship Between Prosociality,Meaning, and Happiness in Everyday Life

Journal of Happiness Studies - Prosocial behaviors benefit others, but what benefits do they hold for those who enact them? Prosociality can enhance the actor’s well-being, yet whether it is...     

A Qualitative Examination of the Impact of the COVID-19 Pandemic on Individuals with Neuro-developmental Disabilities and their Families

Journal of Child and Family Studies - Individuals with neuro-developmental disabilities (NDD) have been profoundly affected by the COVID-19 pandemic. Based on focus groups with 24 service providers...     

The Lunchroom Behavior Game: A Single-Case Design Conceptual Replication

Inappropriate behaviors often occur in non-classroom settings, such as lunchrooms, due to the increased volume of students with fewer supervising adults. As such, there is a need for effective and efficient behavior management interventions that can be implemented in these environments. To address frequent disruptions in an urban elementary lunchroom, McCurdy et al. (J Sch Psychol 47:39–54, 2009) developed a team-based interdependent group contingency called the Lunchroom Behavior Game (LBG) and observed decreased disruptions, while staff and students found the intervention highly acceptable. Given this success, we replicated the LBG in an elementary school in a mid-sized Southeastern city. LBG implementation was staggered across three lunch periods using a multiple-baseline design across subjects. The rate of disruptive behaviors decreased in all lunches following LBG implementation and remained at lower levels during maintenance observations; however, implementation fidelity and student acceptability were low. Specific implementation issues encountered and recommendations for future research are discussed.

     

Correction to: The Impact of Right Temporal Lobe Epilepsy on Nonverbal Memory: Meta-regression of Stimulus- and Task-related Moderators

Neuropsychology Review -     

Aetiology of Coexisting Mental Health and Alcohol and Other Drug Disorders: Perspectives of Refugee Youth and Service Providers

In the general population, people with comorbid mental health (MH) and alcohol and other drug (AOD) disorders (comorbidity) have great difficulty accessing appropriate services, and poor outcomes. Little is known about comorbidity in resettled refugees in Australia. This study was designed to identify risk factors and patterns of comorbidity development in young people from refugee backgrounds living in a disadvantaged urban region of Adelaide, South Australia. This qualitative study utilised in‐depth semi‐structured interviews (n = 30) with resettled refugee youth and workers from MH, AOD, and refugee support services. Thematic analyses were conducted to investigate the aetiology of MH and AOD disorders in young refugees. Interviews with both groups revealed how the interrelated nature of risk factors may place young people from refugee backgrounds at heightened risk of experiencing MH and AOD problems. The situations and conditions described by both groups are discussed under six main themes: pre‐migration experiences of torture and trauma; familial factors of intergenerational conflict; post‐migration adjustment difficulties in terms of language, culture, education, and employment; exposure to and availability of substances; maladaptive coping strategies and self‐medication; and access to information and services. Implications for psychologists and MH professionals are identified, emphasising the need for clinicians to understand the complexities surrounding the aetiology of comorbidity in these youth. The initial assessment needs to be comprehensive, including pre‐ and post‐settlement experiences and cultural and family dimensions of their current situation. Treatment may often need to simultaneously address multiple contributing factors and involve culturally sensitive psycho‐education.