Figure-ground assignment in pigeons: evidence for a figural benefit

Four pigeons discriminated whether a target spot appeared on a colored figural shape or on a differently colored background by first pecking the target and then reporting its location: on the figure or the background. We recorded three dependent variables: target detection time, choice response time, and choice accuracy. The birds were faster to detect the target, to report its location, and to learn the correct response on figure trials than on background trials. Later tests suggested that the pigeons might have attended to the figural region as a whole rather than using local properties in performing the figure-background discrimination. The location of the figural region did not affect figure-ground assignment. Finally, when 4 other pigeons had to detect and peck the target without making a choice report, no figural advantage emerged in target detection time, suggesting that the birds' attention may not have been automatically summoned to the figural region.     

Exploring the relationship between students’ values and the values of postsecondary institutions

Little is known of how institutional and individual value systems are related among university undergraduates. With three different measures and samples of college students, perceptions of university mission and values (i.e., institutional values, creating pro-social climates, and developing a life-long commitment to values) loaded independently of their personal values systems, and often negatively with social desirability. Perceptions of institutional values were generally independent of personal value systems, using either a rank-order (Sample 1, n = 199) or rating scale method (Sample 2, n = 107), or by focusing on moral behavior structures (Sample 3, n = 208). Together, these results indicate that higher education assessment may reflect institutional values that are independent of student personal value systems.Portions of this paper were presented at the 2004 Institute for College Student Values, Tallahassee, FL     

Thinking of threats: Economic threat appraisals and health threat appraisals predict differential racial attitudes during COVID-19

We examined whether perceptions of the health and economic threats posed by COVID-19 predict different patterns of intergroup attitudes, using data gathered during the early phase of the pandemic. Using data from 1339 geographically and politically diverse White US residents, we show that subjective economic threat predicted general anti-outgroup attitudes, while subjective health threat predicted negative attitudes towards both Asian and Latinx (“stereotypically foreign”) outgroups but not towards other outgroups. Among 303 geographically and politically diverse Black US residents, the pattern instead suggested that threat (regardless of type) was associated with reduced evaluative differentiation between racial ingroups and outgroups.     

Political orientation and occupational values of college youth, 1969 and 1981: a shift toward uniformity

McFalls and Gallagher (1979) have found a strong relationship between the occupational values and political orientations of college students. Their study was based on the results of a sample survey conducted in 1969. However, the political climate on college campuses has changed dramatically, and so has the nature of the job market. A new survey was conducted in 1981 which was identical to the 1969 survey. Its objective was to determine if the same political group differentials in occupational values which existed in the politically tumultuous late sixties and early seventies still hold in the more placid 1980s. The findings are reported here.     

The prevalence of mental retardation: Cross-cultural considerations from Sweden and the United States

Recent reports from Sweden and other European countries have shown a sharp disparity between their incidence and prevalence figures on mild mental retardation and similar figures in the U.S. (Grunewald, 1979; Martin, Blodgett, Edwards, Geer, & Melcher, 1974; Robinson & Robinson, 1976).The purpose of this paper is to provide a model of intellectual performance that might explain such disparities and predict future levels of occurrence of mild mental retardation. Such explanations should have relevance for our views on the development of intellectual ability as well as, on a practical level, planning the allocation of treatment resources. Such planning clearly depends upon the number of children having the condition in question.Over the past few decades we have progressed substantially in our ability to describe mental retardation and to differentiate it from conditions that superficially resemble it; such as, autism, learning disabilities, schizophrenia, etc., (Baroff, 1974; Robinson & Robinson, 1976). Our ability to identify variables that relate to mild mental retardation also has developed substantially, but correlation does not necessarily lead to understanding. One of the large set of variables that often is associated with mild mental retardation in the U.S. is poverty. But “poverty” is too broad a variable to be explanatory. Such a dimension is a surrogate factor standing in the place of other variables, not yet understood, that control, in part, the actual process, by which the child develops the condition of mild mental retardation (Kirk & Gallagher, 1983). A series of papers has been presented by psychologists in Sweden that allow us to address this issue.The ability to observe two cultures, Sweden and the U.S., that have both substantial similarities and differences provides a natural comparison of the prevalence of mental retardation that would be impossible to achieve through experimental manipulation. Prevalence is used here as the total number of cases present in a population group during a specific interval of time (Kramer, 1975).     

Object-based attention overrides perceptual load to modulate visual distraction

The ability to ignore task-irrelevant information and overcome distraction is central to our ability to efficiently carry out a number of tasks. One factor shown to strongly influence distraction is the perceptual load of the task being performed; as the perceptual load of task-relevant information processing increases, the likelihood that task-irrelevant information will be processed and interfere with task performance decreases. However, it has also been demonstrated that other attentional factors play an important role in whether or not distracting information affects performance. Specifically, object-based attention can modulate the extent of distractor processing, leaving open the possibility that object-based attention mechanisms may directly modulate the way in which perceptual load affects distractor processing. Here, we show that object-based attention dominates perceptual load to determine the extent of task-irrelevant information processing, with distractors affecting performance only when they are contained within the same object as the task-relevant search display. These results suggest that object-based attention effects play a central role in selective attention regardless of the perceptual load of the task being performed.     

What's in a baby-cry? Locationist and constructionist frameworks in parental brain responses

Parental brain responses to baby stimuli constitute a unique model to study brain-basis frameworks of emotion. Results for baby-cry and picture stimuli may fit with both locationist and psychological constructionist hypotheses. Furthermore, the utility of either model may depend on postpartum timing and relationship. Endocrine effects may also be critical for accurate models to assess mental health risk and treatment.     

Threat advantage: Perception of angry and happy dynamic faces across cultures

The current study tested whether the perception of angry faces is cross-culturally privileged over that of happy faces, by comparing perception of the offset of emotion in a dynamic flow of expressions. Thirty Chinese and 30 European-American participants saw movies that morphed an anger expression into a happy expression of the same stimulus person, or vice versa. Participants were asked to stop the movie at the point where they ceased seeing the initial emotion. As expected, participants cross-culturally continued to perceive anger longer than happiness. Moreover, anger was perceived longer in in-group than in out-group faces. The effects were driven by female rather than male targets. Results are discussed with reference to the important role of context in emotion perception.