Social support of children of divorce: Direct and stress buffering effects

This study examined the direct and stress-buffering effects of support from family adults, nonfamily adults, family children, and nonfamily children on the adjustment of 104 children of divorce. For children's reports of adjustment, significant stress-buffering (i.e., Stress x Support) interactions for support from family adults and support from nonfamily adults occurred. The lower the level of social support, the stronger the positive relation between stress and adjustment problems. In addition, at high levels of stress, children with high support from nonfamily and family adults reported fewer adjustment problems than did children with low support. However, at the lowest level of stress, children with high support from nonfamily adults were significantly more poorly adjusted than were children with low support. For parental reports of children's adjustment, support from family adults was marginally positively related to adjustment whereas support from nonfamily adults was inversely related to adjustment. Implications for intervention programs for children of divorce are discussed.     

Contents Volume 116 2003

Volume Contents

Contents Volume 116 2003     

Strategy-dependent changes in memory: Effects on behavior and brain activity

In the present study, an implicit strategy manipulation was used to explore the contribution of memory strategy to brain activation and behavioral performance. Participants were biased to use either a short-term (maintenance-focused) or long-term (retrieval-focused) memory strategy within a single memory task through manipulation of task context. In comparing directly matched trials across the different task contexts, we observed clear changes in both behavioral performance and brain activity across a network of regions located primarily within lateral and medial frontal cortex. These effects of the memory strategy manipulation suggest that when a retrieval-focused strategy is induced, mnemonic processes are preferentially engaged during the encoding period. In contrast, when a maintenance-focused strategy is induced, mnemonic processes are preferentially engaged during the delay and response periods. Taken together, the results imply that covert cognitive strategies play an important role in modulating brain activation and behavior during memory tasks.     

Early interactions and the socioemotional development of deaf infants

Studies of the early face-to-face interactions and later attachment behaviours between infants and their caregivers are reviewed, with a particular focus on implications for deaf infants. Since the majority of deaf infants are born to hearing parents, it is to be expected that many parental responses will rely on vocalizations which are inaccessible to the deaf infant. Are other sensory modalities enhanced or used in a compensatory manner by hearing parents so as to make their communication with a deaf infant more effective? Is the deaf infant's heightened need for visual and tactile input adequately met during normal interactions with their caregivers? Does the deaf infant develop the same strategies for signalling distress and coping with separation as does the hearing infant? Although the research literature on this population is sparse, there are beginning to be more reports addressing these questions as early identification becomes increasingly possible. Therefore, this paper will cover issues of the role of eye contact and mutual coordination in early interactions, compensatory parenting behaviours from the perspective of the ‘intuitive parenting’ model, and precursors to later attachment behaviours in deaf infants.     

Theory-based screening for prevention: Focusing on mediating processes in children of divorce

Prevention programs in mental health theoretically can benefit from selecting participants who have a greater likelihood of developing psychological problems because of their exposure to the putative mediators targeted for change in an intervention. Screening on mediators may increase statistical power to detect program effects, enhance the cost-effectiveness of intervention trials, and decrease the possibility of iatrogenic effects. The circumstances that optimize the strategy of screening on the basis of mediating variables are discussed, and data are presented to illustrate the development of a mediational selection strategy to identify families who might best benefit from a preventive intervention for children of divorce. In addition, we present evidence that adjustment problems for children experiencing a divorce, as with most mental health problems, are not the result of one specific factor, but are jointly determined by several mediating processes that occur subsequent to the divorce. The mediational selection strategy developed illustrates the utility of measuring a set of mediational processes central to conferring risk for mental health problems to children of divorce.     

Updating without evidence

Sometimes you are unreliable at fulfilling your doxastic plans: for example, if you plan to be fully confident in all truths, probably you will end up being fully confident in some falsehoods by mistake. In some cases, there is information that plays the classical role of evidence—your beliefs are perfectly discriminating with respect to some possible facts about the world—and there is a standard expected-accuracy-based justification for planning to conditionalize on this evidence. This planning-oriented justification extends to some cases where you do not have transparent evidence, in the sense that your beliefs are not perfectly discriminating with respect to any non-trivial facts. In other cases, accuracy considerations do not tell you to plan to conditionalize on any information at all, but rather to plan to follow a different updating rule. Even in the absence of evidence, accuracy considerations can guide your doxastic plan.     

Psychometric evaluation of the depressive personality disorder inventory

The purpose of this study was to evaluate the psychometric properties of the Depressive Personality Disorder Inventory (DPDI; Huprich, Margrett, Barthelemy, & Fine, 1996). The DPDI was found to have strong internal consistency in both an undergraduate and a veteran, psychiatric outpatient population. The DPDI had significant, positive correlations with other measures of depressive personality, supporting its convergent validity. These relationships remained even after controlling for state-like depression, suggesting that the DPDI has incremental validity. The DPDI also significantly predicted scores on measures of interpersonal loss, even after controlling for state-like depression, suggesting that the DPDI has good construct validity. In support of discriminant validity, the DPDI was more correlated with another measure of depressive personality than it was with measures of other personality disorders. Finally, the DPDI had strong diagnostic efficiency statistics: (a) Sensitivity = .82, (b) Specificity = .80, (c) Positive Predictive Power = .75, (d) Negative Predictive Power = .86, and (e) Overall Diagnostic Power = .81. It appears that the DPDI has good psychometric properties.     

A computational model of anterior cingulate function in speeded response tasks: effects of frequency,sequence, and conflict

A growing body of evidence from functional neuroimaging and computational modeling studies indicates that the anterior cingulate cortex (ACC) detects the presence of response conflict and conveys this information to other brain regions, enabling subsequent adjustments in cognitive control. The present study examined previous empirical findings of increased ACC for low-frequency stimuli across three distinct speeded response tasks (two-alternative forced choice, go/no-go, and oddball). Simulations conducted in a neural network model incorporating sequential priming mechanisms (developed in Cho et al., 2002) confirmed that a computational measure of response conflict was higher on low-frequency trials across all three tasks. In addition, the model captured detailed aspects of behavioral reaction time and accuracy data, predicted the dynamics of ACC activity related to trial sequence effects, and provided evidence for the functional role of conflict information in performance monitoring and optimization. The results indicate that the conflict-monitoring hypothesis, augmented by mechanisms for encoding stimulus history, can explain key phenomena associated with performance in sequential speeded response tasks.