Meno’s paradox and medicine

The measurement of diagnostic accuracy is an important aspect of the evaluation of diagnostic tests. Sometimes, medical researchers try to discover the set of observations that are most accurate of all by directly inspecting diseased and not-diseased patients. This method is perhaps intuitively appealing, as it seems a straightforward empirical way of discovering how to identify diseased patients, which amounts to trying to correlate the results of diagnostic tests with disease status. I present three examples of researchers who try to produce definitive diagnostic criteria by directly inspecting diseased and not diseased patients. Despite this method’s intuitive appeal, I will argue that it is impossible to carry out. Before researchers can inspect these patients to discover definitive diagnostic criteria, they must be able to distinguish diseased and not-diseased patients; and they do not know how to do this, because this is what they are trying to discover. I suspect the intuitive appeal of directly inspecting patients makes this difficult to appreciate. To counter this difficulty, I present this problem as a manifestation of ‘Meno’s paradox’, which was described in classical antiquity, and of ‘the problem of nomic measurement’, described more recently. Considering these philosophical problems may help researchers address the methodological issues they face when evaluating diagnostic tests.

     

Phillips on Unconscious Perception and Overflow

Philosophia - Phillips (Philosophy & Phenomenological Research, 93, 419–451, p. 433, 2016a) argues that Block faces a “serious internal challenge” in defending the claim...     

Empowering Change Agents: Youth Organizing Groups as Sites for Sociopolitical Development

In addition to social action campaigns, some youth organizing groups provide formative learning experiences which engage youth in relevant sociopolitical issues through critical approaches. These groups support sociopolitical development (SPD), a self and socially‐oriented process which influences youth personally, politically, and professionally into adulthood. This study explored how youth organizing experiences influenced SPD in the professional domain, applying an empowerment lens. Phenomenologically‐based interviews were conducted with former sexual health education youth organizers and adult program staff. Former youth participants chose socially‐oriented career paths influenced by the group's empowering approach to sexual health education and advocacy. They related meaningful sociopolitical learning experiences (e.g., interpersonal, educational, and civic engagement) to empowerment outcomes (e.g., political efficacy, critical awareness, and participatory behaviors) which informed career decisions. Professionally, participants sought to empower others as the group empowered them, drawing upon youth organizing social and human capital as they worked toward this aim. Combining sociopolitical and empowerment theorizing, the study adds to what is known about how purposefully designed youth organizing experiences support long‐term development outcomes for individuals. Viewed as socially‐oriented career development sites, youth organizing groups build capacity for social change beyond the groups themselves. Implications for youth organizing scholars and practitioners are provided.     

Applying the Theory of Affective Intelligence to Support for Authoritarian Policies and Parties

Emotion, after a long period of inattention, began to attract greater scrutiny as a key driver of human behavior in the mid‐1980s. One approach that has achieved significant influence in political science is affective intelligence theory (AIT). We deploy AIT here to begin to understand the recent rise in support for right‐wing populist leaders around the globe. In particular, we focus on specific emotional appraisals on elections held at periods of heightened threat, including the two 2015 terror attacks in France, as influences on support for the far‐right Front National among conservatives. Contrary to much conventional wisdom, we speculate that threats can generate both anger and fear, and with very different political consequences. We expect fear to inhibit reliance on extant political dispositions such as ideological identification and authoritarianism, while anger will strengthen the influence of these same dispositions. Our core findings, across repeated tests, show that fear and anger indeed differentially condition the way habits of thought and action influence support for the far right in the current historical moment. Contrary to conventional wisdom, it is anger that mobilizes the far right and authoritarians. Fear, on the other hand, diminishes the impact of these same dispositions.     

Exercise modulates the interaction between cognition and anxiety in humans

Despite interest in exercise as a treatment for anxiety disorders the mechanism behind the anxiolytic effects of exercise is unclear. Two observations motivate the present work. First, engagement of attention control during increased working memory (WM) load can decrease anxiety. Second, exercise can improve attention control. Therefore, exercise could boost the anxiolytic effects of increased WM load via its strengthening of attention control. Anxiety was induced by threat of shock and was quantified with anxiety-potentiated startle (APS). Thirty-five healthy volunteers (19 male, age M?=?26.11, SD ?=?5.52) participated in two types of activity, exercise (biking at 60–70% of heart rate reserve) and control-activity (biking at 10–20% of heart rate reserve). After each activity, participants completed a WM task (n-back) at low- and high-load during safe and threat. Results were not consistent with the hypothesis: exercise vs. control-activity increased APS in high-load (p?=?.03). However, this increased APS was not accompanied with threat-induced impairment in WM performance (p?=?.37). Facilitation of both task-relevant stimulus processing and task-irrelevant threat processing, concurrent with prevention of threat interference on cognition, suggests that exercise increases cognitive ability. Future studies should explore how exercise affects the interplay of cognition and anxiety in patients with anxiety disorders.     

Managing Frustration for Children (MFC) Group Intervention for ADHD: An Open Trial of a Novel Group Intervention for Deficient Emotion Regulation

Deficient emotion regulation is a common and impairing area of difficulty among children with ADHD. Few interventions specifically address deficient emotion regulation. The Managing Frustration for Children With ADHD (MFC) group treatment was developed to specifically target deficient emotion regulation deficits common to children with ADHD. The MFC was developed as a 12-week multisystemic intervention for emotion regulation deficits among children with ADHD. An open trial assessed the effectiveness of the MFC as an adjunctive treatment for deficient emotion regulation among children with ADHD. Fifty-two children with ADHD ages 9–11 (42 boys, 10 girls) were enrolled in the MFC, with 44 completing treatment. The majority (71.2%) of participants had at least one comorbid internalizing, externalizing, or learning disorder. Intent-to-treat repeated-measures ANCOVA suggested significant decreases in emotion regulation deficits, mood difficulties, and externalizing difficulties following completion of treatment. More than half (53%) of children who completed treatment experienced reliable and clinically significant improvement in at least one area of functioning. The MFC demonstrated promising initial effectiveness in addressing the emotion regulation deficits of children with ADHD.     

Self‐esteem as a monitor of fundamental psychological need satisfaction

Researchers have long theorized about the function of self‐esteem. Theories such as sociometer, terror management, and self‐determination have each received substantial empirical support, but all purport a different function of self‐esteem. Despite each theory's persuasiveness, they are sometimes at odds, and there remains no clear consensus regarding the function of self‐esteem. In the present paper, we propose the notion that self‐esteem monitors the meeting of multiple fundamental psychological needs, a theory we call the Need‐Satisfaction Framework of self‐esteem. We outline existing empirical support for our theory in the context of three well‐documented fundamental needs: belonging, self‐determination (i.e.,autonomy and competence), and meaning. Across all three needs, we review converging evidence supporting two hypotheses for self‐esteem's need‐monitoring function: (1) threats to needs lower self‐esteem and (2) high self‐esteem buffers defensive responses to need threats. We expand on established theoretical and empirical work in the domain of self‐esteem and also discuss testable future hypotheses.     

Rumors Denials as Persuasive Messages: Effects of Personal Relevance,Source, and Message Characteristics1

Denial is a commonly used strategy to rebut a false rumor. However, there is a dearth of empirical research on the effectiveness of denials in combating rumors. Treating denials as persuasive messages, we conducted 3 laboratory‐based simulation studies testing the overall effectiveness of denials in reducing belief and anxiety associated with an e‐mail virus rumor. Under the framework of the elaboration likelihood model, we also tested the effects of denial message quality and source credibility, and the moderating effects of personal relevance. Overall, the results provided some support for the effectiveness of denials with strong arguments and an anxiety‐alleviating tone in reducing rumor‐related belief and anxiety. The effects of denial wording and source credibility were visible for participants who perceived high personal relevance of the topic. Limitations of the current research and future research directions are discussed.     

The Importance of Affective Beliefs and Attitudes in the Theory of Planned Behavior: Predicting Intention to Increase Physical Activity1

Standard theory of planned behavior (TPB) questions to elicit salient behavioral beliefs may elicit instrumental consequences of behavior, and overlook affective consequences. Two hundred thirteen English adults (35 to 75 years of age) completed a questionnaire that contained closed measures of TPB constructs, and open‐ended questions that asked not only about advantages and disadvantages, but also what respondents would like or enjoy and dislike or hate about being more physically active. Beliefs elicited by affective questions were associated more strongly with a closed affective attitude scale. Beliefs elicited by instrumental questions were associated more strongly with a closed instrumental attitude scale. Closed measures of the standard TPB variables explained 48% of the variance in intention to increase physical activity, while affective attitude explained an additional 11% of the variance. Applications of the TPB should consider affective and not just instrumental determinants of behavior.