How do we process novel conceptual combinations in context?

Most theories of how people interpret novel noun-noun combinations (e.g., ghost forest) do not sufficiently address the role of context, which is surprising given that novel combinations are generally encountered in discourse contexts. We evaluated three hypotheses for the role of context in interpretation. The generation hypothesis states that interpretation is based on sense generation both in and out of context. The anaphor resolution hypothesis states that interpretation initially involves identifying a referent from the prior discourse context, and meaning generation occurs only if anaphoric processing fails. The dual-process hypothesis states that sense generation and anaphor resolution operate in parallel, and both may influence initial interpretation. In two experiments, we examined reading times on novel combinations when the dominant meaning (most likely interpretation) or subordinate meaning (infrequent interpretation) preceded or followed the combination in text. Results supported the dual-process hypothesis.     

Quantifying self‐motives: Functional links between dispositional desires

Previous research has sought to establish the existence, or gauge the relative strength, of key self‐evaluation motives (i.e., self‐enhancement, self‐verification, self‐assessment, self‐improvement). Here, we attempted, across five samples, to quantify individual differences in self‐motive strength and explore their empirical ramifications. We devised brief self‐report indices for each self‐motive and checked their factor structure, reliability, and validity. We found that self‐enhancement covaried mainly with self‐verification, and that self‐assessment covaried mainly with self‐improvement, thus validating key hypotheses regarding their functional links. Moreover, self‐enhancement and self‐verification covaried with positive personality traits, as well as with preferences for receiving positive feedback and perceptions of its accuracy. In sum, self‐reported variations in dispositional self‐motive strength form theoretically meaningful patterns. Copyright © 2011 John Wiley & Sons, Ltd.     

Emotion Regulation via the Autonomic Nervous System in Children with Attention-Deficit/Hyperactivity Disorder (ADHD)

Despite growing interest in conceptualizing ADHD as involving disrupted emotion regulation, few studies have examined the physiological mechanisms related to emotion regulation in children with this disorder. This study examined parasympathetic and sympathetic nervous system reactivity via measures of respiratory sinus arrhythmia (RSA) and cardiac pre-ejection period (PEP) in children with ADHD (n = 32) and typically developing controls (n = 34), using a novel emotion task with four conditions: negative induction, negative suppression, positive induction, and positive suppression of affect. Both groups showed strong task-response effects in RSA. However, typically developing children showed systematic variation in parasympathetic activity (RSA) depending on both emotion valence (more activation for negative emotion, reduced activation for positive emotion) and task demand (more activation for suppression than induction). In contrast, children with ADHD displayed a stable pattern of elevated parasympathetic activity (RSA) across all task conditions compared to baseline. No group differences in sympathetic activity (PEP) were observed. It is concluded ADHD in childhood is associated with abnormal parasympathetic mechanisms involved in emotion regulation.     

Motivated expectations of positive feedback in social interactions

People self-enhance in a variety of ways. For example, they generally expect to perform better than others, to be in control of events, and to have a brighter future. Might they also self-enhance by expecting to receive positive feedback in social interactions? Across five studies, we found that they did. People's desire for feedback correlated with how positive they expected it to be (Study 1), and their feedback expectations were more positive for themselves than for others (Study 2). People's positive feedback expectations also covaried with trait tendencies to self-enhance (i.e., self-esteem and narcissism; Study 3) and with a direct situational manipulation of self-enhancement motivation (Study 4). Finally, people expected to receive positive feedback but did not consistently expect to receive self-verifying feedback (Study 5). These findings are consistent with social expectations being driven in part by the self-enhancement motive.     

Parental criticism and externalizing behavior problems in adolescents: the role of environment and genotype-environment correlation

Genetic factors are important for the association between parental negativity and child problem behavior, but it is not clear whether this is due to passive or evocative genotype-environment correlation (rGE). In this study, we applied the extended children-of-twins model to directly examine the presence of passive and evocative rGE as well as direct environmental effects in the association between parental criticism and adolescent externalizing problem behavior. The cross-sectional data come from the Twin and Offspring Study in Sweden (N = 909 pairs of adult twins) and from the Twin Study of Child and Adolescent Development (N = 915 pairs of twin children). The results revealed that maternal criticism was primarily due to evocative rGE emanating from their adolescent's externalizing behavior. On the other hand, fathers' critical remarks tended to affect adolescent problem behavior in a direct environmental way. This suggests that previously reported differences in caretaking between mothers and fathers also are reflected in differences in why parenting is associated with externalizing behavior in offspring.     

The adaptation dynamics of chronic functional impairment: what we can learn from older adults with vision loss

This study used vision loss due to age-related macular degeneration to learn about adaptation processes related to chronic functional impairment, focusing on Horowitz and Reinhardt's (1998) concept of Adaptation to Age-related Vision Loss (AVL) as the outcome. We hypothesized that impacts of visual acuity on AVL are mediated by perceived functional vision losses and functional abilities, and tested for "adaptive" weakening of this impact with ongoing loss. Longitudinal data covering a one-year interval from samples with age-related macular degeneration gathered in New York (N = 361) and Heidelberg (Germany, N = 90) were used. We analyzed the hypothesized causal structure by modeling latent change scores, and checked if those with low, medium, and high levels of vision loss at baseline differ in the relations between one-year change scores. Results confirmed that impacts of vision loss on AVL are mediated by decline in functional ability. However, under the most severe levels of vision loss at baseline, functional decline showed only a minor impact on AVL change not explained by a lack of further decline in vision. Findings confirm the effectiveness of adaptation in terms of reduced reactivity to functional losses across increasing level of chronic impairment. Thus, adaptation, weakening the impact of chronic functional impairment on psychological outcomes over time with disease progression, deserves consideration in the study of psychological consequences of chronic physical health conditions in old age.     

Trauma and sex surveys meet minimal risk standards: implications for institutional review boards

Institutional review boards assume that questionnaires asking about "sensitive" topics (e.g., trauma and sex) pose more risk to respondents than seemingly innocuous measures (e.g., cognitive tests). We tested this assumption by asking 504 undergraduates to answer either surveys on trauma and sex or measures of cognitive ability, such as tests of vocabulary and abstract reasoning. Participants rated their positive and negative emotional reactions and the perceived benefits and mental costs of participating; they also compared their study-related distress with the distress arising from normal life stressors. Participants who completed trauma and sex surveys, relative to participants who completed cognitive measures, rated the study as resulting in higher positive affect and as having greater perceived benefits and fewer mental costs. Although participants who completed trauma and sex surveys reported slightly higher levels of negative emotion than did participants who completed cognitive measures, averages were very low for both groups, and outliers were rare. All participants rated each normal life stressor as more distressing than participating in the study. These results suggest that trauma and sex surveys pose minimal risk.     

Myosin II motor activity in the lateral amygdala is required for fear memory consolidation

Learning induces dynamic changes to the actin cytoskeleton that are required to support memory formation. However, the molecular mechanisms that mediate filamentous actin (F-actin) dynamics during learning and memory are poorly understood. Myosin II motors are highly expressed in actin-rich growth structures including dendritic spines, and we have recently shown that these molecular machines mobilize F-actin in response to synaptic stimulation and learning in the hippocampus. In this study, we report that Myosin II motors in the rat lateral amygdala (LA) are essential for fear memory formation. Pretraining infusions of the Myosin II inhibitor, blebbistatin (blebb), disrupted long term memory, while short term memory was unaffected. Interestingly, both post-training and pretesting infusions had no effect on memory formation, indicating that Myosin II motors operate during or shortly after learning to promote memory consolidation. These data support the idea that Myosin II motor-force generation is a general mechanism that supports memory consolidation in the mammalian CNS.     

Do motivational interviewing behaviors predict reductions in partner aggression for men and women?

Motivational interviewing is a directive, non-confrontational intervention to promote behavior change. The current study examined therapist behaviors during a successful brief motivational interviewing intervention for physically aggressive college dating couples (Woodin & O'Leary, 2010). Forty-five minute motivational interviews with each partner were videotaped and coded using the Motivational Interviewing Treatment Integrity scale (MITI; Moyers, Martin, Manuel, & Miller, 2003). Hierarchical modeling analyses demonstrated that therapist behaviors consistent with motivational interviewing competency predicted significantly greater reductions in physical aggression perpetration following the intervention. Specifically, greater reflection to question ratios by the therapists predicted reductions in aggression for both men and women, greater percentages of open versus closed questions predicted aggression reductions for women, and there was a trend for greater levels of global therapist empathy to predict aggression reductions for women. These findings provide evidence that motivational interviewing seems to have an effect on behavior change through therapist behaviors consistent with the theoretical underpinnings of motivational interviewing.     

The dangers of dating the “bad boy” (or girl): When does romantic desire encourage us to take on the negative qualities of potential partners?

People generally strive to maintain positive views of themselves. Even in the face of negative feedback, individuals frequently protect the self-concept from incorporating negative information. Two studies examined a potential exception to that rule: whether and when romantic desire may motivate individuals to spontaneously adopt the negative attributes of a potential partner. Study 1 demonstrated the basic effect such that single individuals spontaneously incorporated negative attributes of a potential romantic partner into their self-concepts, and incorporation was magnified by desire for the partner. Study 2 explored boundary conditions of these effects. Negative attributes were only incorporated if the potential partner expressed self-acceptance about possessing these attributes; when potential partners reported wishing to change the negative attribute, it was not adopted into the self-concept. Attribute extremity also moderated incorporation. The implications of these results for understanding the nuances of motivated self-malleability are discussed.