Executive control processes of working memory predict attentional blink magnitude over and above storage capacity

When two masked, to-be-attended targets are presented within approximately half a second of each other, performance on the second target (T2) suffers, relative to when the targets are presented further apart in time or when the first target (T1) can be ignored. This phenomenon is known as the attentional blink (AB). Colzato et al. (Psychon Bull Rev 14:1051–1057, 2007) used an individual differences approach to examine whether individual AB magnitude was predicted by individual differences in working memory (WM), using the operation span paradigm (OSPAN). They found that OSPAN score was inversely related to AB magnitude even when a fluid intelligence measure (Raven’s SPM) was partialled out. However, it is not clear from this study whether it was the executive control aspect of working memory, the capacity aspect of short-term memory, (or both), that related to AB magnitude. In the present study we used a variety of WM measures that required varying degrees of executive control. OSPAN was negatively related to AB magnitude with Raven’s SPM, reading comprehension, reading rate, and digit forward and backward partialled out. Backward and forward digit span did not predict AB magnitude. These results support the conclusion that a “working” executive component of WM predicts temporal limitations of selective attention beyond static STM capacity and general cognitive ability.     

Are Female Stalkers More Violent Than Male Stalkers? Understanding Gender Differences in Stalking Violence Using Contemporary Sociocultural Beliefs

This study investigated gender differences in the perpetration of stalking violence and how sociocultural beliefs may account for these differences/similarities. A sample of 293 Australian undergraduate and postgraduate students classified as relational stalkers completed a self-report questionnaire assessing violence perpetration (no/moderate/severe violence) and sociocultural beliefs (justifications for relational violence; assessments of target fear). Female relational stalkers perpetrated elevated rates of moderate violence; however, there were no gender differences for severe violence. Both male and female relational stalkers were more supportive of justifications for female-perpetrated relational violence than male-perpetrated relational violence. Violent male relational stalkers were more likely to believe they caused fear/harm than their female counterparts. These findings are interpreted in the context of sociocultural beliefs that view male-to-female violence as more unacceptable and harmful than female-to-male violence.     

Relational factors and family treatment engagement among low-income,HIV-positive African American mothers

Clinically derived hypotheses regarding treatment engagement of families of low-income, HIV-positive, African American mothers are tested using univariate and multivariate logistic regression models. Predictors are baseline family relational factors (family support, mother's desire for involvement with family, and family hassles) and mother's history of substance dependence. The study examines a subsample of 49 mothers enrolled in a clinical trial testing the efficacy of Structural Ecosystems Therapy (SET). SET is a family-based intervention intended to relieve and prevent psychosocial distress associated with HIV/AIDS. Participants in the subsample were randomly assigned to SET and attended at least two therapy sessions. Findings reveal that family relational factors predicted family treatment engagement (family support, p < .004; mother's desire for involvement with family, p < .008; family hassles, p < .027). Family support predicted family treatment engagement beyond the prediction provided by the other relational factors and the mother's own treatment engagement (p < .016). History of substance dependence was neither associated with family treatment engagement nor family support. Post hoc analyses revealed that family hassles (p < .003) and mother's desire for involvement with family (p < .018) were differentially related to family treatment engagement in low- versus high-support families. Implications for clinical practice and future research are discussed.