Cognitive Rehabilitation Therapies for Alzheimer’s Disease: A Review of Methods to Improve Treatment Engagement and Self-Efficacy

Cognitive rehabilitation therapies for Alzheimer’s disease (AD) are becoming more readily available to the geriatric population in an attempt to curb the insidious decline in cognitive and functional performance. However, people with AD may have difficulty adhering to these cognitive treatments due to denial of memory deficits, compromised brain systems, cognitive incapacity for self-awareness, general difficulty following through on daily tasks, lack of motivation, hopelessness, and apathy, all of which may be either due to the illness or be secondary to depression. Cognitive rehabilitation training exercises are also labor intensive and, unfortunately, serve as a repeated reminder about the memory impairments and attendant functional consequences. In order for cognitive rehabilitation methods to be effective, patients must be adequately engaged and motivated to not only begin a rehabilitation program but also to remain involved in the intervention until a therapeutic dosage can be attained. We review approaches to cognitive rehabilitation in AD, neuropsychological as well as psychological obstacles to effective treatment in this population, and methods that target adherence to treatment and may therefore be applicable to cognitive rehabilitation therapies for AD. The goal is to stimulate discussion among researchers and clinicians alike on how treatment effects may be mediated by engagement in treatment, and what can be done to enhance patient adherence for cognitive rehabilitation therapies in order to obtain greater cognitive and functional benefits from the treatment itself.     

The effects of cultural intelligence on performance in multicultural teams

This study investigates the relative performance changes of multicultural teams (MCTs) over time, as well as the relationship between cultural intelligence (CQ) and performance in MCTs. More specifically, we argue that MCTs' CQ alleviates the adverse effect of cultural diversity on team performance, thereby demonstrating the importance of CQ for multicultural teams. Using data from 73 project groups comprising 327 members, the results have demonstrated that the degree of cultural diversity on MCTs influences team performance over time, and that those teams with higher levels of CQ tend to gradually exhibit higher rates of performance improvement. In addition, the results indicate that CQ moderates the relationship between cultural diversity and team performance.     

Affective facilitation and inhibition of cultural influences on reasoning

Research in South Korea and the United States examined how affective states facilitate or inhibit culturally dominant styles of reasoning. According to the affect-as-information hypothesis, affective cues of mood influence judgements by serving as embodied information about the value of accessible inclinations and cognitions. Extending this line of research to culture, we hypothesised that positive affect should promote (and negative affect should inhibit) culturally normative reasoning. The results of two studies of causal reasoning supported this hypothesis. Positive and negative affect functioned like “go” and “stop” signals, respectively, for culturally typical reasoning styles. Thus, in happy (compared to sad) moods, Koreans engaged in more holistic reasoning, whereas Americans engaged in more analytic reasoning.     

Sharing and Confronting Propositions in Collaborative Inquiry Learning

This study investigates how collaborative knowledge construction within an inquiry learning environment can be assisted with scaffolds that aim to support students' hypothesis generation process. Sixty-six students on a university preparatory track worked collaboratively on a kinematics task. The instructional goal was to develop students' understanding of one-dimensional kinematics. All students completed a proposition test in which they indicated their individual opinions about the truth-value of specific propositions. Subsequently, students were coupled into dyads and assigned to one of three conditions: (a) a shared proposition scratchpad (expression builder), (b) a shared proposition table, and (c) a control condition. Students in the scratchpad condition were given an expression builder consisting of dropdown menus with pre-defined variables and relations. Students in the shared proposition table condition could combine individual opinions about the truth-value of a proposition into one shared proposition table that highlighted differences in opinion. Students in the control condition received no extra support related to propositions. Learning outcomes were assessed using a variety of pre- and posttests. The findings indicate that students supported with the shared proposition table showed significant gains for qualitative knowledge about relations. The number of unique propositions students discussed during the learning session was a significant predictor of learning gains. A more detailed analysis of students' interaction protocols suggests that students differed in their task perceptions, their interaction patterns, and their use of prior knowledge.     

Emotional content enhances true but not false memory for categorized stimuli

Past research has shown that emotion enhances true memory, but that emotion can either increase or decrease false memory. Two theoretical possibilities—the distinctiveness of emotional stimuli and the conceptual relatedness of emotional content—have been implicated as being responsible for influencing both true and false memory for emotional content. In the present study, we sought to identify the mechanisms that underlie these mixed findings by equating the thematic relatedness of the study materials across each type of valence used (negative, positive, or neutral). In three experiments, categorically bound stimuli (e.g., funeral, pets, and office items) were used for this purpose. When the encoding task required the processing of thematic relatedness, a significant true-memory enhancement for emotional content emerged in recognition memory, but no emotional boost to false memory (Exp. 1). This pattern persisted for true memory with a longer retention interval between study and test (24 h), and false recognition was reduced for emotional items (Exp. 2). Finally, better recognition memory for emotional items once again emerged when the encoding task (arousal ratings) required the processing of the emotional aspect of the study items, with no emotional boost to false recognition (Exp. 3). Together, these findings suggest that when emotional and neutral stimuli are equivalently high in thematic relatedness, emotion continues to improve true memory, but it does not override other types of grouping to increase false memory.     

Depression in Homebound Older Adults: Problem-Solving Therapy and Personal and Social Resourcefulness

The goal of problem-solving therapy is to teach patients systematic coping skills. For many homebound older adults, coping skills must also include both personal and social (help-seeking) resourcefulness. This study aimed to examine the relationship between perceived resourcefulness and depressive symptoms at postintervention and potential mediating effect of the resourcefulness among 121 low-income homebound older adults who participated in a pilot randomized controlled trial testing feasibility and preliminary efficacy of telehealth-PST. Resourcefulness Scale for Older Adults was used to measure personal and social resourcefulness. Only personal resourcefulness scores were significantly associated with depression outcomes at postintervention, and neither resourcefulness scores were significantly associated with group assignment. Analysis found no mediation effect of resourcefulness. The findings call for further research on potential mediators for the potentially effective depression treatment that could be sustained in the real world for low-income homebound older adults who have limited access to psychotherapy as a treatment modality.     

Longitudinal Analysis of Associations between 3-D Mental Rotation and Mathematics Reasoning Skills during Middle School: Across and within Genders

ABSTRACT

The development of math reasoning and 3-d mental rotation skills are intertwined. However, it is currently not understood how these cognitive processes develop and interact longitudinally at the within-person level – either within or across genders. In this study, 553 students (52% girls) were assessed from fifth to seventh grades on 3-d mental rotation spatial skills (assessed each fall) and numerical and algebraic math reasoning skills (assessed each spring). Boys outperformed girls on mental rotation tests across all three grades, and on fifth and seventh grade math reasoning tests. Consistent with the literature on between-person comparisons, there was a positive correlation between mental rotation and math reasoning skills in the full sample and for both genders. A random intercept cross-lagged panel model was used to control for these confounding group-level differences in order to isolate within-person associations between earlier and later performance. Initially in fifth grade, math reasoning predicted subsequent sixth grade mental rotation skills. By seventh grade, more advanced mental rotation skills were associated with subsequent math reasoning skills while math reasoning skills were no longer predictive of mental rotation skills. An examination of gender differences revealed that this pattern was driven by boys while girls experienced less within-person change. These findings suggest that boys may initially rely in part on their math reasoning skills to solve 3-d mental rotation tasks. However, as their 3-d mental rotation skills mature, they begin to primarily depend upon these developing spatial skills to solve math reasoning problems rather than the reverse.     

Sense of Divine Involvement and Sense of Meaning in Life: Religious Tradition as a Contingency

This study examines the association between sense of divine involvement and sense of meaning in life. Then it proceeds to assess how this association varies by religious tradition. Using a random and national sample from the 2007 Baylor Religion Survey, this study finds that sense of divine involvement is associated with greater odds of having a sense of meaning in life. In addition, religious affiliation modifies this association. Specifically, the positive association between sense of divine involvement and the odds of having a sense of meaning in life is observed only among evangelical Protestants, mainline Protestants, and Catholics, but not among other religionists and religious nones. I discuss how the results make contributions to knowledge about the link between religious beliefs, religious tradition, and mental health.     

Group decision process and incrementalism in organizational decision making

In two studies examining resource allocation, support is found for the notion that group decisions are affected in systematic ways depending on whether or not there was individual consideration of the problem before meeting as a group. Specifically, compared to no prior consideration groups, prior consideration groups (1) escalate their commitment more in progress (i.e., ongoing) decisions, and (2) are less willing to concentrate resources on a single project in adoption (i.e., resource utilization) decisions. The findings challenge the blanket assertion that promoting divergent views in a group decision context is always related to better decisions.