Taxometric and factor analytic models of anxiety sensitivity among youth: exploring the latent structure of anxiety psychopathology vulnerability

This study represents an effort to better understand the latent structure of anxiety sensitivity (AS), a well-established affect-sensitivity individual difference factor, among youth by employing taxometric and factor analytic approaches in an integrative manner. Taxometric analyses indicated that AS, as indexed by the Child Anxiety Sensitivity Index (CASI; Silverman, Flesig, Rabian, & Peterson, 1991), demonstrates taxonic latent class structure in a large sample of youth from North America (N=4,462; M(age)=15.6 years; SD=1.3). Subsequent confirmatory factor analyses indicated that the latent continuous, multidimensional, 4-factor model of AS among youth (Silverman, Goedhart, Barrett, & Turner, 2003) provided good fit for the CASI data among the complement class ("normative form" of AS), but not among the taxon class ("high-risk form" of AS). EFAs supported the prediction that the AS taxon demonstrates a unique, heretofore unexplored latent continuous, unidimensional factor structure among youth. Findings are discussed in relation to refining our understanding of the latent structure of AS and the clinical implications that arise from it.     

The role of epistemic motivation in individuals’ response to decision complexity

Integrating findings on the effects of more alternatives with findings on the effects of more attributes, we offer a motivational decision-making model, suggesting that epistemic motivation moderates individuals’ responses to complex information. Study 1 empirically investigated the shared essence of four conceptualizations of epistemic motivation, further distinguishing it from the maximizing/satisficing motivation. A series of experiments indicate that epistemic motivation moderates the effect of complex information on one’s discomfort with a decision (Studies 2–4) and on the tendency to implement one’s choice in action (Study 3). Taken together, our findings indicate that individuals with low epistemic motivation experience more discomfort and are less likely to implement their decision when faced with complex information whereas those high on epistemic motivation portray a weaker or even an opposite effect. The consistent findings across conceptualizations (dispositional Need-for-Cognitive-Closure and manipulated Openness vs. Conservation values) indicate the robustness of the findings and the important role of epistemic motivation in complex decisions.     

Refining the dual-stage account of intertrial feature priming: Does motor response or response feature matter?

Numerous studies have shown that repetition of search-relevant attributes facilitates visual search performance. For example, Maljkovic and Nakayama (1994) showed that when observers search for a target defined by its color and report its shape, repetition of the target color speeds search, an effect known as priming of pop-out. While intertrial feature priming in search was initially thought to affect perceptual processes, the idea that it also affects postselection stages of processing is increasingly acknowledged. However, because in previous studies repetition of the motor response has typically been confounded with repetition of the response feature, it is not clear what mechanisms underlie the postselection effect of intertrial priming. In the present study, we dissociated the two repetition types. The results showed that repetition of the target-defining attribute from the previous trial affects selection of the motor response but not discrimination of the response attribute. The implications for current accounts of intertrial priming are discussed.     

Educational Needs of Primary Care Physicians Regarding Direct-to-Consumer Genetic Testing

To assess the educational needs of North Carolina primary care physicians (PCPs) about direct-to-consumer (DTC) genetic testing, surveys were mailed to 2,402 family and internal medicine providers in North Carolina. Out of 382 respondents, 323 (85%) felt unprepared to answer patient questions and 282 (74%) reported wanting to learn about DTC genetic testing. A total of 148 (39%) were aware of DTC genetic testing. Among these, 63 (43%) thought DTC genetic testing was clinically useful. PCPs who felt either unprepared to answer patient questions (OR = 0.354, p = 0.01) or that DTC genetic testing was clinically useful (OR = 5.783, p = 0.00) were more likely to want to learn about DTC genetic testing. PCPs are interested in learning about DTC genetic testing, but are mostly unaware of DTC testing and feel unprepared to help patients with DTC testing results. Familiar and trusted channels that provide the information and tools PCPs need to help answer patient’s questions and manage their care should be used when creating educational programs.     

Happiness and Suffering in the Life Story: An Inquiry into Conflicting Expectations Concerning the Association of Perceived Past with Present Subjective Well-Being in Old Age

The study examined whether positive or negative aspects of the life story were predominantly associated with present subjective well-being (SWB). Two samples (N?=?815 and 213; mean ages 75 and 73) rated past emotions (happiness and suffering) in positive and negative anchor periods (e.g., ??the happiest period,?? ??the most miserable period??) of their life stories. The indices of present SWB were present happiness, present suffering, and life satisfaction. Results indicated that when the past emotions were net of each other, past happiness was related to the positive indices, but not to the negative index, of present SWB whereas past suffering was related to the negative index, and only partially to the positive indices, of present SWB. Congruent emotions (happiness in positive periods, suffering in negative periods) were stronger than incongruent emotions (happiness in negative periods, suffering in positive periods), yet each had unique associations with present SWB. Finally, past happiness weakened the inverse relationship between past suffering and present SWB, yet it strengthened this relationship when past emotions were both incongruent (i.e., when happiness in negative periods was analyzed in conjunction with suffering in positive periods). In conclusion, rather than presenting predominance over each other, positive and negative ingredients in the life story maintain complementary and interactive associations with present SWB. In this context, the study points to the SWB-related implications of the interplay between paramount life experiences in the individual??s anchor periods and the emotions that the individual attributes to these periods.     

Exploration of a factor mixture-based taxonic-dimensional model of anxiety sensitivity and transdiagnostic psychopathology vulnerability among trauma-exposed adults

The aim of this study was to evaluate the associations between a factor mixture-based taxonic-dimensional model of anxiety sensitivity (AS) and posttraumatic stress, panic, generalized anxiety, depression, psychiatric multimorbidity, and quality of life among a young adult sample exposed to traumatic stress (N = 103, n (females) = 66, M (age) = 23.68 years, SD (age) = 9.55). Findings showed support for the conceptual and operational utility of the AS taxonic-dimensional model with respect to concurrent transdiagnostic vulnerability among trauma-exposed adults. Specifically, relative to the low-AS group, the high-AS group demonstrated elevated levels of panic, depressive, and posttraumatic stress symptom severity as well as greater psychiatric multimorbidity and poorer quality of life. Furthermore, past-month MDD, GAD, PTSD, and panic attacks occurred nearly exclusively among the high-AS group. Continuous AS physical and psychological concerns scores were found to be significantly related to levels of panic and posttraumatic stress symptom severity, psychiatric multimorbidity as well as panic attack status only among the high-AS group and not among the low-AS group. Findings are discussed with respect to their implications for the conceptual and operational utility of the FMM-based taxonic-dimensional model of AS, related vulnerability for psychopathology in the context of trauma, and the clinical implications of these findings for assessment and intervention.     

A probabilistic corpus-based model of syntactic parallelism

Work in experimental psycholinguistics has shown that the processing of coordinate structures is facilitated when the two conjuncts share the same syntactic structure [Frazier, L., Munn, A., & Clifton, C. (2000). Processing coordinate structures. Journal of Psycholinguistic Research, 29(4) 343–370]. In the present paper, we argue that this parallelism effect is a specific case of the more general phenomenon of syntactic priming—the tendency to repeat recently used syntactic structures. We show that there is a significant tendency for structural repetition in corpora, and that this tendency is not limited to syntactic environments involving coordination, though it is greater in these environments. We present two different implementations of a syntactic priming mechanism in a probabilistic parsing model and test their predictions against experimental data on NP parallelism in English. Based on these results, we argue that a general purpose priming mechanism is preferred over a special mechanism limited to coordination. Finally, we show how notions of activation and decay from ACT-R can be incorporated in the model, enabling it to account for a set of experimental data on sentential parallelism in German.