Evolving judgments of terror risks: foresight, hindsight, and emotion

The authors examined the evolution of cognitive and emotional responses to terror risks for a nationally representative sample of Americans between late 2001 and late 2002. Respondents' risk judgments changed in ways consistent with their reported personal experiences. However, they did not recognize these changes, producing hindsight bias in memories for their judgments. An intensive debiasing procedure failed to restore a foresightful perspective. A fear-inducing manipulation increased risk estimates, whereas an anger-inducing manipulation reduced them-both in predictions (as previously observed) and in memories and judgments of past risks. Thus, priming emotions shaped not only perceptions of an abstract future but also perceptions of a concrete past. These results suggest how psychological research can help to ensure an informed public.     

Nonlinear,near photo-realistic caricatures using a parametric facial appearance model

A mathematical model previously developed for use in computer vision applications is presented as an empirical model for face space. The term appearance space is used to distinguish this from previous models. Appearance space is a linear vector space that is dimensionally optimal, enables us to model and describe any human facial appearance, and possesses characteristics that are plausible for the representation of psychological face space. Randomly sampling from a multivariate distribution for a location in appearance space produces entirely plausible faces, and manipulation of a small set of defining parameters enables the automatic generation of photo-realistic caricatures. The appearance space model leads us to the new concept of nonlinear caricatures, and we show that the accepted linear method for caricature is only a special case of a more general paradigm. Nonlinear methods are also viable, and we present examples of photographic quality caricatures, using a number of different transformation functions. Results of a simple experiment are presented that suggest that nonlinear transformations can accurately capture key aspects of the caricature effect. Finally, we discuss the relationship between appearance space, caricature, and facial distinctiveness. On the basis of our new theoretical framework, we suggest an experimental approach that can yield new evidence for the plausibility of face space and its ability to explain processes of recognition.     

Random effects diagonal metric multidimensional scaling models

By assuming a distribution for the subject weights in a diagonal metric (INDSCAL) multidimensional scaling model, the subject weights become random effects. Including random effects in multidimensional scaling models offers several advantages over traditional diagonal metric models such as those fitted by the INDSCAL, ALSCAL, and other multidimensional scaling programs. Unlike traditional models, the number of parameters does not increase with the number of subjects, and, because the distribution of the subject weights is modeled, the construction of linear models of the subject weights and the testing of those models is immediate. Here we define a random effects diagonal metric multidimensional scaling model, give computational algorithms, describe our experiences with these algorithms, and provide an example illustrating the use of the model and algorithms.We would like to thank J. Douglas Carroll for early consultation of this research, and Robert I. Jennrich for commenting on an earlier draft of this paper and for help on the computational algorithms. James O. Ramsay and Forrest W. Young were instrumental in providing the example data. This work was supported in part by National Institute of Mental Health grant 1 R43 MH57559-01. We would also like to thank the anonymous referees for comments that helped to clarify our work.     

In pursuit of a historical tradition: N. A. Rozhkov’s scientific laws of history

Despite all that has been written about Russian historiography and how it profoundly changed after the Bolsheviks seized power in 1917, very little is known about the historical tradition immediately before the Soviet era. This article attempts to begin to address this issue by examining the major forces that shaped the historical and sociological thought of Nikolai Alesandrovich Rozhkov (1868–1927). It argues that as Kliuchevskii’s successor and as the first professional historian to eventually present a Marxist analysis of Russian history, Rozhkov was not only the most important historian at that time but one whose work best represented the most significant transition in Russia’s historical tradition. The article concludes that an examination of Rozhkov’s historical methodology offers a new interpretation of the origins of Soviet historiography.

The 'when' pathway of the right parietal lobe

The order of events, whether two events are seen as simultaneous or successive, sets the stage for the moment-to-moment interpretation of the visual world. Evidence from patients who have lesions to the parietal lobes and transcranial magnetic stimulation studies in normal subjects suggest that the right inferior parietal lobe underlies this analysis of event timing. Judgment of temporal order, simultaneity and high-level motion are all compromised following right parietal lesions and degraded after transcranial magnetic stimulation over the right parietal but not elsewhere. The results suggest that the right parietal lobe serves as part of a when pathway for both visual fields. We propose that the disruption of this mechanism is the underlying cause of a wide range of seemingly unrelated tasks being impaired in right parietal patients.     

The impact of negative moods on self-enhancing cognitions: the role of reflective versus ruminative mood orientations

This research program examined how self-focused attention to feelings affects the relation between mood negativity and self-enhancing thought. The primary hypothesis was that the particular manner in which people focus on their moods (reflective vs. ruminative) determines whether they reveal positive (i.e., mood-incongruent) or negative (i.e., mood-congruent) self-relevant thoughts in response to negative moods. Studies 1-4 revealed that social comparisons, temporal comparisons, and other self-enhancing cognitions (i.e., attributions, disidentification, relationship evaluations) are more likely to be mood incongruent when people adopt a reflective orientation to their negative feelings and more likely to be mood congruent when they adopt a ruminative orientation. Additionally, moods and mood orientations affected self-enhancing thoughts through the mediating influence of mood regulation goals and intentions (Studies 5 and 6).     

Coparenting Experiences in African American Families: An Examination of Single Mothers and their Nonmarital Coparents

African American youth from single‐mother homes continue to be overrepresented in statistics on risk behavior and delinquency, a trend that many be attributed to father‐absence, socioeconomic disadvantage, and compromises in parenting more typical of single than two‐parent families. Yet, this risk‐focused perspective ignores a long‐standing strength of the African American community, the involvement and potential protective impact of extended family members in childrearing. This study describes the experiences of 95 African American single mothers and their nonmarital coparents who participated in a study of African American single‐mother families with an 11–16‐year‐old child. Specifically, the study examines: (a) the extent to which nonmarital coparents are involved in childrearing; (b) the relative levels of risk (i.e., depression, mother–coparent conflict) and protective (i.e., parenting) associated with maternal and coparent involvement; and (c) how similarly and/or differently coparent and mother variables operate with regard to youth externalizing problems. Findings reveal that a range of family members and other adults actively participate in childrearing in African American single‐mother families, coparents do not differ from mothers on certain study variables (i.e., depression and mother–coparent conflict) but do for others (parenting), and coparent involvement is associated with youth adjustment in ways that are similar to our more established understanding of maternal involvement. The potential clinical implications of the findings are discussed and future research directions are highlighted.     

Decisions from experience: How groups and individuals adapt to change

Whether groups make better judgments and decisions than individuals has been studied extensively, but most of this research has focused on static tasks. How do groups and individuals compare in settings where the decision environment changes unexpectedly and without notification? This article examines group and individual behavior in decisions from experience where the underlying probabilities change after some trials. Consistent with the previous literature, the results showed that groups performed better than the average individual while the decision task was stable. However, group performance was no longer superior after a change in the decision environment. Group performance was closer to the benchmark of Bayesian updating, which assumed perfect memory. Findings suggest that groups did not adopt decision routines that might have delayed their adaption to change in the environment. Rather, they seem to have coordinated their responses, which led them to behave as if they had better memory and subsequently delayed adaptation.