The Epistemic Status of Evolutionary Theory

The theory of evolution continues to be a bone of contention among certain groups of theistic believers. This paper aims to bring some light to the debate about it, by introducing a framework for epistemic appraisal which can provide a realistic and sober assessment of the epistemic credentials of the various parts of evolutionary theory. The upshot is a more nuanced epistemic appraisal of the theory of evolution, which shows that there are significant differences in epistemic standing between its various parts. Any serious conversation about the theory of evolution ought to reflect these facts.     

The influence of emotion type,social value orientation and processing focus on approach-avoidance tendencies to negative dynamic facial expressions

Facial expressions of anger and fear have been seen to elicit avoidance behavior in the perceiver due to their negative valence. However, recent research uncovered discrepancies regarding these immediate motivational implications of fear and anger, suggesting that not all negative emotions trigger avoidance to a comparable extent. To clarify those discrepancies, we considered recent theoretical and methodological advances, and investigated the role of social preferences and processing focus on approach-avoidance tendencies (AAT) to negative facial expressions. We exposed participants to dynamic facial expressions of anger, disgust, fear, or sadness, while they processed either the emotional expression or the gender of the faces. AATs were assessed by reaction times of lever movements, and by posture changes via head-tracking. We found that—relative to angry faces-, fearful and sad faces triggered more approach, with a larger difference between fear and anger in prosocial compared to individualistic participants. Interestingly, these findings are in line with a recently developed concern hypothesis, suggesting that—relative to other negative expressions—expressions of distress may facilitate approach, especially in participants with prosocial preferences.     

Research Note: Anti-Semitism and Superstition

Superstitions and anti-Semitism are generally based on irrational beliefs. To date, no research has examined the relationship between anti-Semitism and superstition. Four groups, Arab-Muslim, Arab-Christian, Non-Arab Muslim, and Non-Arab Christian, responded to anti-Semitism and superstition measures. With respect to anti-Semitism scores, Arabs scored higher than non-Arabs and Muslims scored higher than Christians. Superstitions varied, however, with Arabs endorsing more New Age beliefs, while Muslims endorsed more traditional superstitious beliefs. The correlations between anti-Semitism and superstitious beliefs were significant, but low, and are explained in terms of cultural differences.     

Oral motor discoordination among children who stutter

A large body of literature describes subtle oral motor differences among people who stutter, which are not typical of other speakers. The purpose of this report was to propose that oral motor discoordination (OMD) can be assessed and treated, and that such treatment may be useful prior to targeting perceived stuttering behaviors.

Oral motor coordination (correct voicing, smooth coarticulation, proper sequencing, and age appropriate rate of production of syllables) was assessed using an Oral Motor Assessment Scale. An oral motor training program was described that improved OMD 78% after 14 hours of training in nine children. Stuttering was improved 62% by the training, although it was not specifically targeted. This report proposes that improvement in OMD and reduction of stuttering may be reciprocal (i.e., treatment of one may produce improvement in the other as a byproduct). It may be that OMD is among the physiologic features that can cause post-treatment fluency to be “tenuous.” Its inclusion in treatment programs may improve maintenance and naturalness of fluency.     

Two youths who clutter, but is that the only similarity?

This article describes the clinical profile of two youngsters who clutter. Although both subjects share key characteristics, they differ in other respects. As we gain more systematic information on the nature and symptomatology of cluttering, we may conclude that it is not a homogeneous but a heterogeneous phenomenon.