Cognitive Assessment of Individuals with Multiple Sclerosis in the Arab World: a Systematic Review

Neuropsychology Review - The prevalence of multiple sclerosis (MS) is on the rise globally, and recent epidemiological studies have observed increased rates in the Arab world (i.e., countries of...     

The Modal Logic of Bayesian Belief Revision

In Bayesian belief revision a Bayesian agent revises his prior belief by conditionalizing the prior on some evidence using Bayes’ rule. We define a hierarchy of modal logics that capture the logical features of Bayesian belief revision. Elements in the hierarchy are distinguished by the cardinality of the set of elementary propositions on which the agent’s prior is defined. Inclusions among the modal logics in the hierarchy are determined. By linking the modal logics in the hierarchy to the strongest modal companion of Medvedev’s logic of finite problems it is shown that the modal logic of belief revision determined by probabilities on a finite set of elementary propositions is not finitely axiomatizable.

     

Intimate partner violence and preschoolers' explicit memory functioning.

This research examines whether parents' intimate partner physical violence (IPV) relates to their preschoolers' explicit memory functioning, whether children's symptoms of hyperarousal mediate this relation, and whether mothers' positive parenting moderates this relation. Participants were 69 mothers and their 4- or 5-year-old child (34 girls). Mothers completed measures of IPV, children's hyperarousal symptoms, parent-child aggression, and positive parenting. Measures of explicit memory functioning were administered to preschoolers. As expected, IPV correlated negatively with preschoolers' performance on explicit memory tasks, even after controlling for parent-child aggression and demographic variables related to preschoolers' memory functioning. Preschoolers' hyperarousal symptoms did not mediate the relation between IPV and explicit memory functioning, but mothers' positive parenting moderated this relation. Specifically, the negative relation between IPV and preschoolers' performance on 2 of the 3 explicit memory tasks was weaker when mothers engaged in higher levels of positive parenting. These findings extend research on IPV and children's adjustment difficulties to explicit memory functioning in preschoolers and suggest that mothers can ameliorate the influence of IPV on preschoolers' memory functioning via their parenting.     

Comorbidity of substance dependence and depression: role of life stress and self-efficacy in sustaining abstinence.

The authors examined life stress and self-efficacy as predictors of time to relapse for 113 adults with comorbid major depressive disorder and alcohol and/or substance dependence in a randomized clinical trial comparing 2 psychotherapy interventions (integrated cognitive- behavioral therapy and 12-step facilitation therapy). Life stress, self-efficacy, and substance use were assessed at treatment entry, 12 weeks (mid-treatment), and 24 weeks (end of treatment). Time to relapse was defined as the number of days from treatment initiation until first alcohol and/or drug use. Half of the sample relapsed within the study period of 24 weeks. There was no significant difference between treatment groups. Individuals experiencing life stressors were more likely to relapse early than those not experiencing life stressors. Lower self-efficacy also predicted earlier relapse. Chronic stress levels and self-efficacy were stable across time for most individuals. In contrast, acute stress events occurred at differing times, and survival analyses provided evidence of heightened relapse risk in the month following acute stressors. The interaction of self-efficacy and life stress was not significant. The results highlight the significance of life stress and self-efficacy as predictors of early relapse.     

Maternal gatekeeping, coparenting quality, and fathering behavior in families with infants

The present study examined the role of maternal gatekeeping behavior in relation to fathers' relative involvement and competence in child care in 97 families with infant children. Parents' beliefs about fathers' roles were assessed prior to their infant's birth. Parents' perceptions of maternal gatekeeping behavior (encouragement and criticism) and coparenting relationship quality were assessed at 3.5 months postpartum. The authors assessed fathers' relative involvement and competence in child care using a combination of parent report and observational measures. Results suggest that even after accounting for parents' beliefs about the paternal role and the overall quality of the coparenting relationship, greater maternal encouragement was associated with higher parent-reported relative father involvement. Moreover, maternal encouragement mediated the association between coparenting quality and reported relative father involvement. With respect to fathers' observed behavior, fathers' beliefs and parents' perceptions of coparenting relationship quality were relevant only when mothers engaged in low levels of criticism and high levels of encouragement, respectively. These findings are consistent with the notion that mothers may shape father involvement through their roles as "gatekeepers."     

Can parent‐to‐parent consultation improve the effectiveness of the Maudsley model of family‐based treatment for anorexia nervosa? A randomized control trial

Objective: This paper describes a preliminary randomized control trial that explores the use of parent‐to‐parent consultations as a potential augmentation to the Maudsley model of family‐based treatment for anorexia. Method: Twenty families were randomized into two groups, ten receiving standard treatment and ten receiving an additional parent‐to‐parent consultation early on in treatment. Measures of parental efficacy (Parents versus Anorexia Scale), patient distress (Depression Anxiety and Stress Scale) and percentage ideal body weight were taken each week. The effects of parent‐to‐parent consultations on parental efficacy and weight were analysed by comparing data with random effects models. Results: A significant treatment effect was found, with parent‐to‐parent consultations leading to a small increase in the rate of weight restoration. Conclusion: This practice has the potential to enhance weight restoration when included in the Maudsley model of family‐based treatment for anorexia nervosa. Research that tests more potent forms of intervention may also have merit.     

Forgive and Forget? Antecedents and Consequences of Intergroup Forgiveness in Bosnia and Herzegovina

The present study examines the effects of contact and common-ingroup identification on intergroup forgiveness and outgroup behavioral tendencies. A sample of Bosnian Muslims (N  =  180) were asked to report their readiness to forgive the misdeeds committed by Bosnian Serbs during the 1992–95 war in Bosnia and Herzegovina. A path analysis of the presumed antecedents and consequences of forgiveness revealed that frequent and good quality contact with members from the perpetrator group predicted forgiveness (positively) and desire for social distance (negatively). Moreover, the positive relationship between contact and forgiveness was mediated by empathy and trust towards the outgroup and by perceived outgroup heterogeneity. Common-ingroup identification was also found to be positively associated with forgiveness and negatively with social distance towards the outgroup. Finally, intergroup forgiveness also predicted social distance from the outgroup. The theoretical and applied implications of these findings are discussed.     

Guided saccades modulate face- and body-sensitive activation in the occipitotemporal cortex during social perception

Functional magnetic resonance imaging (fMRI) has identified distinct brain regions in ventral occipitotemporal cortex (VOTC) and lateral occipitotemporal cortex (LOTC) that are differentially activated by pictures of faces and bodies. Recent work from our laboratory has shown that the strong LOTC activation evoked by bodies in which the face is occluded is attenuated when the occlusion is removed. We hypothesized that this attenuation may occur because subjects preferentially fixate upon faces when present in the scene. Here, we experimentally manipulated subjects’ fixations while they viewed a static picture of a character whose face, hand, and torso were continuously visible throughout each run. The subject’s saccades and fixations were guided by a small fixation cross that made discrete jumps to a new location every 500 ms. Subjects were instructed to follow the fixation cross and make a button press whenever it changed size. In a series of blocks, the fixation cross shifted from locations on the face, on the hand, and to locations on a background image of a phase-scrambled face. In a second study, the fixation cross moved similarly, but the hand locations were changed to locations along the character’s body or torso. A localizer task was used to identify face- and body-sensitive regions of LOTC. Body-sensitive regions were strongly activated when the subjects’ saccades were guided over the character’s torso relative to when the saccades were guided over the character’s face. Little to no activity occurred in the body-sensitive region of LOTC when the subjects’ saccades were guided over the character’s hand. The localizer task was unable to differentiate body-sensitive regions in lateral VOTC from face-sensitive regions, or body-sensitive regions in medial VOTC from flower-sensitive regions. Guided saccades over the body strongly activated both lateral and medial VOTC. These results provide new insights into the function of body-sensitive visual areas in both LOTC and VOTC, and illustrate the potential confounding influence of uncontrolled eye movements for neuroimaging studies of social perception.