Making faces: Creating three-dimensional parameterized models of facial expression

Previous studies of the perceptual processing and dynamics of emotional expression in faces have been limited by the lack of realistic yet controlled stimuli. The present work offers researchers a method for creating such stimuli for exploring these phenomena. We describe the creation of the stimuli and a series of experiments testing the validity of these stimuli with respect to emotional expressions in humans. Participants evaluated synthesized facial images and standardized photographs of six basic emotional expressions for intensity and accuracy of perceived emotion. Comparisons of these measures were qualitatively similar for synthesized and photographed faces. A manipulation of the magnitude of the synthesized expressions yielded a significant effect on the perceived intensity of expression. In a subsequent multidimensional scaling study, no systematic differences were uncovered in the derived configurations of the synthesized expressions and the photographs. These results are discussed in the context of possible future research applications.     

Maternal perinatal mental health: Associations with bonding,mindfulness, and self-criticism at 18 months’ postpartum

The perinatal period is a time of significant transition for women, with changes in maternal mental health from pregnancy to 18 months’ postpartum. This study specifically analyzes maternal self-criticism and mindfulness during pregnancy and at 18 months’ postpartum, and their associations with bonding. A longitudinal study (30 weeks’ gestation–18 months’ postpartum) assessed 32 mother–infant dyads, examining changes in maternal depression, anxiety, self-criticism, and mindfulness. In addition, associations between maternal variables during pregnancy and bonding were investigated. Maternal depression and self-criticism significantly increased from pregnancy to postpartum. Maternal anxiety, self-criticism, and facets of mindfulness during pregnancy were also associated with mother–infant bonding at 18 months. Maternal mental health during pregnancy is subject to change postchildbirth. The lack of control and autonomy accompanying motherhood may result in an increase in self-criticism during this period. Such feelings may elevate a woman's vulnerability to postpartum depression and have consequences for later maternal bonding. Early identification of at-risk mothers is important to increase likelihood of positive outcomes.     

TOP‐DOWN AND BOTTOM‐UP: THE ROLE OF SOCIAL INFORMATION PROCESSING AND MINDFULNESS AS PREDICTORS IN MATERNAL–INFANT INTERACTION

The cross‐generational transmission of attachment appears to reflect a complex interplay of factors, which have been challenging to identify. The current longitudinal study explored the maternal cognitive model of relationships through language use, maternal mindfulness, and attachment style assessed prenatally, as predictors of maternal response to distress and infant behavior at 6 months’ postpartum. Infant behavior to the mother also was examined to provide an understanding of the evolving relationship. Thirty‐two females were interviewed prenatally regarding social and family experiences. At 6 months’ postpartum, each mother participated in a video‐recorded session where she was asked to teach her infant a developmentally appropriate task. Videos were analyzed using the NCAST Teaching Protocol. Language use prenatally as well as the mindfulness facets (acting with awareness and describing) predicted the mothers’ ability to respond to infant distress, indicating greater attunement. Infant's response to mother and clarity of cues also were predicted by maternal pronoun use. The study highlights the role of internal working models reflective of interpersonal beliefs, cognitive models, and current‐moment awareness in maternal behavior. The effect of maternal language on infant behavior arguably indicates the infant's integration of maternal internal working models.     

Thoughts about a successful future encourage action in the face of challenge

College environments can put lower socioeconomic status (SES) female students at particular risk of withdrawing during challenging academic situations. However, thinking about reaching a successful future identity may encourage these students to take action rather than withdraw. In a laboratory experiment, we tested the hypothesis that imagining a successful future identity would help lower SES female students to actively and successfully confront challenging tasks (i.e., a mock student–faculty interaction and difficult academic test). As predicted, when future identities were cued rather than past identities, lower SES female students demonstrated greater action readiness. Specifically, they showed more expansive body posture during the mock interaction and more attempts to complete the academic test, which led to better performance. The motivation to take action among higher SES and male students, who are at lower risk of vulnerability in college environments, was not influenced by future identities.     

Projection and Behavior: A Rorschach Study of Assaultive Mental Hospital Patients

Collapsing DSM-III schizotypal and borderline groups to form a borderline population is unwarranted when the results are then related to borderline personality organization. In a comparison of overlapping scoring systems for inferring defensive operations, Lerner, Albert, and Walsh intertwine fact and theory extravagantly and are not justified by their chosen populations nor their assumptions about the theories involved.     

Workload capacity spaces: A unified methodology for response time measures of efficiency as workload is varied

Increasing the number of available sources of information may impair or facilitate performance, depending on the capacity of the processing system. Tests performed on response time distributions are proving to be useful tools in determining the workload capacity (as well as other properties) of cognitive systems. In this article, we develop a framework and relevant mathematical formulae that represent different capacity assays (Miller’s race model bound, Grice’s bound, and Townsend’s capacity coefficient) in the same space. The new space allows a direct comparison between the distinct bounds and the capacity coefficient values and helps explicate the relationships among the different measures. An analogous common space is proposed for the AND paradigm, relating the capacity index to the Colonius–Vorberg bounds. We illustrate the effectiveness of the unified spaces by presenting data from two simulated models (standard parallel, coactive) and a prototypical visual detection experiment. A conversion table for the unified spaces is provided.     

From "in the air" to "under the skin": cortisol responses to social identity threat

The authors examined women's neuroendocrine stress responses associated with sexism. They predicted that, when being evaluated by a man, women who chronically perceive more sexism would experience more stress unless the situation contained overt cues that sexism would not occur. The authors measured stress as the end product of the primary stress system linked to social evaluative threat-the hypothalamic-pituitary-adrenal cortical axis. In Study 1, female participants were rejected by a male confederate in favor of another male for sexist reasons or in favor of another female for merit-based reasons. In Study 2, female participants interacted with a male confederate who they learned held sexist attitudes or whose attitudes were unknown. Participants with higher chronic perceptions of sexism had higher cortisol, unless the situation contained cues that sexism was not possible. These results illustrate the powerful interactive effects of chronic perceptions of sexism and situational cues on women's stress reactivity.     

A cultural mismatch: Independent cultural norms produce greater increases in cortisol and more negative emotions among first-generation college students

American universities increasingly admit first-generation students—students whose parents do not have four-year degrees. Once admitted, these students experience greater challenges adjusting to universities compared to continuing-generation students—students who have at least one parent with a four-year degree. This additional adversity is typically explained in terms of first-generation students' relative lack of economic (e.g., money) or academic (e.g., preparation) resources. We propose that this adversity also stems from a cultural mismatch between the mostly middle-class, independent norms institutionalized in American universities and the relatively interdependent norms that first-generation students are socialized with in working-class contexts before college. As predicted, an experiment revealed that framing the university culture in terms of independent norms (cultural mismatch) led first-generation students to show greater increases in cortisol and less positive/more negative emotions than continuing-generation students while giving a speech. However, reframing the university culture to include interdependent norms (cultural match) eliminated this gap.     

An analysis of air-stepping in normal infant vervet monkeys

Limb movements during air-stepping were analyzed in three neonatal vervet monkeys over a three-week period. The movements had similar temporal organization both across animals and across time. For example, the duration of both the hind and the forelimb cycle equaled about 500 ms, with hind limb return strokes lasting much longer than the hind limb power strokes. Furthermore, there were clear indications of both intra- and interlimb coordination. Specifically, all the joints of a limb tended to flex and extend simultaneously, and contralateral and ipsilateral limb pairs had an average phase relationship of approximately 50% of cycle duration. Despite a qualitative similarity between limb movements during air-stepping in the neonates and overground locomotion in older animals, there were notable differences both in temporal relationships and joint displacement patterns. Finally, there appeared to be important similarities between air-stepping in these monkeys and stepping in newborn humans. Most notably, both tended to disappear after a limited period. The implications of these similarities, as well as the overall results, are discussed in relation to the understanding of the development of locomotor behavior in human and nonhuman primates, using approaches based both upon the hard-wired and dynamic models.