Rats know when they remember: transfer of metacognitive responding across odor-based delayed match-to-sample tests

Metamemory entails cognitively assessing the strength of one’s memories. We tested the ability of nine Long-Evans rats to distinguish between remembering and forgetting by presenting a decline option that allowed a four-choice odor-based delayed match to sample (DMTS) tests to be by-passed. Rats performed significantly better on tests they chose to take than on tests they were forced to take, indicating metacognitive responding. However, rather than control by internal mnemonic cues, one alternative explanation is that decline use is based on external test-specific cues that become associated with increased rewards overtime. To examine this possibility, we tested rats on three generalization tests in which external contingencies were inconsistent and therefore could not serve as discriminative cues. Rats transferred adaptive use of the decline response in tests that eliminated memory by presenting no sample, increased memory by presenting multiple samples, and both weakened and strengthened memory by varying the retention interval. Further, subjects chose to take or decline the test before encountering the memory test, providing evidence that rats based their metacognitive responding on internal cues rather than external ones. To our knowledge, this is the first robust evidence for metamemory in rats using the DMTS decline-test paradigm in which several possible sources of external stimulus control can be ruled out.     

The circumplex structure of interpersonal sensitivities

Previous research on aversive interpersonal behavior has provided limited links between interpersonal sensitivities and comprehensive models of personality and social behavior. Study 1 (N = 1,336) of this article demonstrated that interpersonal sensitivities can be mapped onto the interpersonal circumplex and that people generally find others' behavior that is least similar to their own generally most aversive. In Study 2 (N = 299), a broader array of correlates with interpersonal sensitivities was investigated, and results again suggested that interpersonal opposites are generally perceived as most aversive. Study 3 (N = 315) specified romantic, platonic, or nonclose relationships and again found this pattern. Conceptualizing sensitivities with the interpersonal circumplex model permits investigators to distinguish general from specific kinds of sensitivity, allows for tests of the convergent and discriminant validity of interpersonal sensitivities, and integrates sensitivities into a well-established nomological net composed of multiple constructs relevant to social behavior and interpersonal dysfunction.     

Modeling stability and change in borderline personality disorder symptoms using the revised Interpersonal Adjective Scales-Big Five (IASR-B5)

Personality disorders have been defined as "stable over time." However, research now supports marked change in the symptoms of these disorders and significant individual variability in the trajectories across time. Using the Longitudinal Study of Personality Disorders (Lenzenweger, 2006), we explore the ability of the Revised Interpersonal Adjective Scales--Big Five (IASR-B5; Trapnell & Wiggins, 1990) to predict individual variation in initial value and rate of change in borderline personality disorder symptoms. The dimensions of the IASR-B5 predict variability in initial symptoms and rates of change. Interaction effects emerged between Dominance and Conscientiousness, Love and Neuroticism, and Conscientiousness and Neuroticism in predicting initial symptoms; and between Dominance and Love and Love and Neuroticism in predicting rates of change, suggesting that the effects of broad domains of personality are not merely additive but conditional on each other.     

Attachment Insecurity and Perceived Partner Suffering as Predictors of Personal Distress

This study examined the extent to which perceptions of partner suffering mediate the association between attachment insecurity (anxiety and avoidance) and personal distress among spouses of older adults with osteoarthritis. Fifty-three spouses watched two videos of targets (their partner and an opposite sex stranger) perform a pain-eliciting household task, and spouses were asked to rate their own distress and perceptions of the targets' pain. Spouses also completed self-report measures of trait attachment. Results revealed that attachment anxiety was associated with greater personal distress in reaction to the partner's suffering, and heightened perceptions of partner pain mediated this association. Avoidant attachment was associated with less distress in reaction to the partner's suffering, but not with less perceived pain. The results of this study identify an important mechanism linking attachment insecurity and heightened distress responses when observing the suffering of a significant other.     

Equality of whom? a genetic perspective on equality (of opportunity)

Rawls’ principle of fair equality of opportunity has been regularly discussed and criticized for being inadequate regarding natural inequalities. In so far as this egalitarian goal is sound, the purpose of the paper is to see how the prospect of radical genetic intervention might affect this particular inadequacy. I propose that, in a post-genetic setting, an appropriate response would be to extend the same rules regulating societal inequalities to a regulation of comparable genetic inequalities. I defend this stance against recent arguments from the authors of From Chance to Choice and from Colin Farrelly’s alternative of the genetic difference principle. Thanks and appreciation to Dr. Pete Morris, Noreen McGuire and Ann Feeney for their support and encouragement. My thanks also to the participants of the Ninth Manchester Graduate (Brave New World 2005) Conference in Political Theory, where a shorter version of this paper was read.     

The composition of attachment networks throughout the adult years

This study assessed the structure of adults' attachment networks, using a questionnaire measure of preferred attachment figures with a large sample of adults (N = 812) representing various ages and life situations. Two broad research questions were addressed. The first question concerned the variety of attachment figures reported by adults and the relative strength of attachment to each, including preferred (primary) attachment figures. The second question concerned the effects of normative life events on attachment networks and the nature of primary attachment figures in different life situations. Overall, the results supported the preeminent role of attachment relationships with romantic partners. However, relationships with mothers, fathers, siblings, children, and friends also met the strict criteria used to define full‐blown attachments; further, each of these targets constituted the primary attachment figure for some participants. The structure of the attachment network was related to variables such as age, relationship status, and parental status, attesting to the important role of normative life events. The results have theoretical and applied significance and are related to principles of attachment, caregiving, and socioemotional selectivity.     

Attachment,marital interaction,and relationship satisfaction: A diary study

The relations among measures of attachment, spouse behavior, and marital satisfaction were assessed in a broad sample of 193 married couples, using both questionnaire and diary methods. Insecure attachment was associated with less favorable reports of spouse behavior, as assessed by diary checklists. Marital satisfaction was predicted by attachment measures and reports of spouse behavior. The relation between attachment security and marital satisfaction was moderated, but not mediated, by reported spouse behavior. Specifically, insecure individuals’ evaluations of their relationships were more reactive to recent spouse behavior, an effect that was especially marked for fearful participants and for those in longer‐term marriages. Some gender differences in patterns of prediction were obtained. The results are discussed in terms of the working models associated with attachment styles, and the processes by which relationship satisfaction may be eroded over time.