The elusive matching bias effect in the disjunctive selection task

When reasoning with conditional statements (i.e., if [not] p then [not] q), for example when solving Wason's selection task, subjects tend to display matching bias: Options which match the entities named in the rule tend to be selected irrespective of whether this is logically appropriate. Recently, there have been suggestions that the underlying causes of matching bias reflect a general phenomenon that applies to many types of logical rule, not just conditionals. A study is reported in which performance is investigated for selection tasks with categorical or disjunctive rules. Although matching bias was clearly present for categorical rules, inverted matching bias was identified for disjunctive rules, calling into question the generality of the phenomenon and its explanations. In addition, performance at one task was not correlated with performance at the other, calling into question recent cognitive capacity accounts of selection task performance.     

The role of motion direction selective extrastriate regions in reading: a transcranial magnetic stimulation study

Why reading ability is correlated with motion processing ability is perplexing. Activity in motion direction processing regions (Area V5/MT+) was perturbed by means of repetitive transcranial magnetic stimulation (rTMS) to examine its effect on reading. A functional probe (significant shortening of the motion aftereffect) was used to identify Area V5/MT+. Right-handed participants (8 m, 8 f) received three 7.5 min blocks of rTMS, after which two phonological and one orthographic reading tasks were administered. Application of rTMS to Area V5/MT+ (as compared to a non-rTMS baseline) significantly decreased performance only during non-word naming. The pattern of naming errors and the absence of deficits on the second phonological task were not consistent with a role for Area V5/MT+ in phonological decoding. Instead, its role in reading may be limited to image stabilization and/or letter localization.     

Sample size and multiple regression analysis

Despite the development of procedures for calculating sample size as a function of relevant effect size parameters, rules of thumb tend to persist in designs of multiple regression studies. One explanation for their persistence may be the difficulty in formulating a reasonable a priori value of an effect size to be detected. This article presents methods for calculating effect sizes in multiple regression from a variety of perspectives and also introduces a new method based on an exchangeability structure among predictor variables. No single method is deemed superior, but rather examples show that a combination of methods is likely to be most valuable in many situations. A simulation provides a 2nd explanation for why rules of thumb for choosing sample size have persisted but also shows that the outcome of such underpowered studies will be a literature consisting of seemingly contradictory results.     

The impact of task difficulty expectations on intrinsic motivation

Two studies investigated expectations of task difficulty induced prior to task involvement and their impact upon an individual's subsequent intrinsic interest. Expectations of task difficulty were manipulated through easy/hard instructions by the experimenters. Interest, but not performance, varied as function of expected task difficulty, with “easy” eliciting greater interest than “hard” instructions. The generality of this finding was supported by its demonstration in studies utilizing different experimenters (male, female), subject populations (children, college), and tasks (perceptual-motor, cognitive).     

The “Three Rs” of Sex

Summary We have seen that sex has three functions, the reproductive, the relational, and the recreational. We have shown it probable that a great deal of unnecessary marital conflict comes from one party holding relational sex to be all-important while the other considers recreational sex to be of more importance. Finally, we have indicated that it is most likely that if they can compromise this difficulty by each meeting the other on his own ground a part of the time, much of the haggling will stop and many unnecessary divorces will be avoided.The Rev. Maxwell H. Morris, Th.D., following studies in the Old Testament and ancient history in the University of Oregon, the University of Washington, and the University of Southern California, spent a year in Jewish studies at the Hebrew Union College for Rabbinical Studies in Cincinnati. His interest in the psychology of sex grew out of his attempts to understand phallic and fertility cults.     

Beyond family‐level adversities: Exploring the developmental timing of neighborhood disadvantage effects on the brain

A growing literature suggests that adversity is associated with later altered brain function, particularly within the corticolimbic system that supports emotion processing and salience detection (e.g., amygdala, prefrontal cortex [PFC]). Although neighborhood socioeconomic disadvantage has been shown to predict maladaptive behavioral outcomes, particularly for boys, most of the research linking adversity to corticolimbic function has focused on family‐level adversities. Moreover, although animal models and studies of normative brain development suggest that there may be sensitive periods during which adversity exerts stronger effects on corticolimbic development, little prospective evidence exists in humans. Using two low‐income samples of boys (n = 167; n = 77), Census‐derived neighborhood disadvantage during early childhood, but not adolescence, was uniquely associated with greater amygdala, but not PFC, reactivity to ambiguous neutral faces in adolescence and young adulthood. These associations remained after accounting for several family‐level adversities (e.g., low family income, harsh parenting), highlighting the independent and developmentally specific neural effects of the neighborhood context. Furthermore, in both samples, indicators measuring income and poverty status of neighbors were predictive of amygdala function, suggesting that neighborhood economic resources may be critical to brain development.     

Change in Attachment Dimensions and Reflective Functioning Following Emotionally Focused Group Therapy for Binge Eating Disorder

The current study examines change in attachment variables from pre- to six months post-emotionally focused group therapy (EFGT) for binge eating disorder (BED). A clinical sample of 118 women and men with BED attended 20 sessions of EFGT and completed the Adult Attachment Interview pre- and six months post-treatment. There was a significant increase in secure attachment style classification, significant increases in Coherence of Mind and Reflective Functioning scores, and significant decreases in both unresolved/disorganized attachment style classification and scale scores from pre- to six months post-treatment. Interventions specific to EFGT, common therapeutic factors and group process interventions may have contributed to changes in these attachment variables. The current study demonstrated that EFGT is a promising treatment for facilitating change in attachment in women and men with BED.     

The implicit benefit of learning without errors

Two studies examined whether the number of errors made in learning a motor skill, golf putting, differentially influences the adoption of a selective (explicit) or unselective (implicit) learning mode. Errorful learners were expected to adopt an explicit, hypothesis-testing strategy to correct errors during learning, thereby accruing a pool of verbalizable rules and exhibiting performance breakdown under dual-task conditions, characteristic of a selective mode of learning. Reducing errors during learning was predicted to minimize the involvement of explicit hypothesis testing leading to the adoption of an unselective mode of learning, distinguished by few verbalizable rules and robust performance under secondary task loading. Both studies supported these predictions. The golf putting performance of errorless learners in both studies was unaffected by the imposition of a secondary task load, whereas the performance of errorful learners deteriorated. Reducing errors during learning limited the number of error-correcting hypotheses tested by the learner, thereby reducing the contribution of explicit processing to skill acquisition. It was concluded that the reduction of errors during learning encourages the use of implicit, unselective learning processes, which confer insusceptibility to performance breakdown under distraction.     

Preliminary validation of a Chinese version of the State-Trait Anger Expression Inventory-2

The increased globalization of psychology and related fields necessitates the availability of psychometric instruments in a number of languages, countries and cultures. Unfortunately, research on anger and aggression in Chinese populations has suffered from a lack of valid and reliable measurement instruments. Therefore, the State-Trait Anger Expression Inventory-2 (STAXI-2) was translated into Chinese (Chinese STAXI-2). Two samples of Hong Kong Chinese ( N  = 489 and N  = 775) completed the Chinese STAXI-2. Participants in the second sample also completed measures of anger rumination and aggression. Confirmatory factor analysis (CFA) of responses from the first sample resulted in the loss of nine items from the 57 original items due to misspecification. A second CFA, using responses from the second sample, supported the construct validity of the modified scale. Moderate correlations were observed with measures of aggression and anger rumination, and significant differences were found between males and females on three anger expression subscales (Anger Expression-In, Anger Control-Out, and Anger Control-In). The preliminary evidence suggests that the abbreviated inventory may be a useful measure of state and trait anger, and anger expression in some Chinese populations.