Pigeons encode absolute distance but relational direction from landmarks and walls

In recent studies, researchers have examined animals' use of absolute or relational distances in finding a hidden goal. When trained with an array of landmarks, most animals use the default strategy of searching at an absolute distance from 1 or more landmarks. In contrast, when trained in enclosures, animals often use the relationship among walls. In the present study, pigeons were trained to find the center of an array of landmarks or a set of short walls that did not block external cues. Expansion tests showed that both groups of pigeons primarily used an absolute distance strategy. However, on rotational tests, pigeons continued to search in the center of the array, suggesting that direction was learned in relation to array.     

Memory and reality

Although it may be disconcerting to contemplate, true and false memories arise in the same way. Memories are attributions that we make about our mental experiences based on their subjective qualities, our prior knowledge and beliefs, our motives and goals, and the social context. This article describes an approach to studying the nature of these mental experiences and the constructive encoding, revival, and evaluative processes involved (the source monitoring framework). Cognitive behavioral studies using both objective (e.g., recognition, source memory) and subjective (e.g., ratings of memory characteristics) measures and neuroimaging findings are helping to clarify the complex relation between memory and reality. ((c) 2006 APA, all rights reserved).     

The distinction between positive and negative reinforcement: use with care

It is customary in behavior analysis to distinguish between positive and negative reinforcement in terms of whether the reinforcing event involves onset or offset of a stimulus. In a previous article (Baron & Galizio, 2005), we concluded that a distinction of these terms is not only ambiguous but has little if any functional significance. Here, we respond to commentaries by a group of distinguished behavior analysts about the issues we raised. Although several of the commentators argued for preservation of the distinction, we remain unconvinced that its benefits outweigh its weaknesses. Because this distinction is so deeply embedded in the language of behavior analysis, we hardly expect that it will be abandoned. However, we hope that the terms positive and negative reinforcement will be used with circumspection and with full knowledge of the confusion they can engender.     

Religious Involvement and Its Association to Risk Behaviors among Older Youth in Foster Care

This study examined religious involvement and its association to risk behaviors (sexual behavior, marijuana use, alcohol use, and cigarette use) among older youth in foster care (N=383). Three dimensions of religious involvement were assessed—church or religious service attendance, religious practices, and religious beliefs. Findings showed that gender, ethnic group membership, sexual abuse history, and placement type were significantly associated with older foster care youth’s religious involvement. Hierarchical logistic regression analyses showed that religious service attendance was associated with reduced odds of youth’s engagement in sexual behavior in the past 2 months and current use of cigarettes. In addition, greater religious beliefs were associated with a reduction in odds of youth’s use of alcohol in the past 6 months and current use of cigarettes. The consideration of religious involvement as a positive influence and resource that may reduce unhealthy risk behaviors among older youth in foster care is discussed.     

The structure of vocational interests in Filipino adolescents

The structure of vocational interests was investigated in Filipino high school students (N = 503), who rated their interest in 303 culture-relevant occupational titles and 93 major fields of study. Item-level principal components analyses identified general interest, prestige, and sex-type dimensions, rather than Prediger's (1982) People/Things and Data/Ideas dimensions. Additional factor analyses were conducted to derive scales that measure more specific interests, including Unskilled/Semiskilled Labor, Male-dominated, Engineering/Technology, Science, Medical, Arts, Commerce, Government/Law, and Education. The interest scales showed some resemblance or overlap with Holland's types, and gender differences on the scales conformed to expectations. However, the relationships among the scales and occupations were better accounted for by prestige and sex-type than by People/Things and Data/Ideas dimensions or by Holland's circular model. Developmental, cultural, educational, and economic factors that might account for Filipino students' focus on prestige and sex-type were discussed.     

Situating Coordination and Cooperation Between Ecological and Social Psychology

The major thrust of this analysis is to demonstrate the value of making ecological psychology more social while recognizing that for this to occur, social psychology must become more ecological in the sense that its key concepts must be treated in an embodied manner. I elaborate these propositions by focusing on establishing differences between coordination and cooperation. I then explore a range of relationships between them from a social psychological perspective. To accomplish this integration, which uses the commitment to reciprocity as a joint organizing principle, I use three complementary models—dynamical systems, effectivities-affordances, and a role-rule model of social commitment. Key aspects of the analysis involve (1) elaborating the meaning of Turvey's (1990) Turvey, M. T. 1990. Coordination. American Psychologist, 45: 938–954. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] proper-relations view of coordination and (2) demonstrating the particular relevance of roles and trust as unifying concepts. From this perspective, coordinations occur between roles, rather than individuals, at the level of team play. Team play, in turn, is shown to depend on trust. And trust, in turn, is related to perceptions of dependability, thereby illustrating a critical intersection of ecological and social psychology.     

How to endure presentism

Presentism and endurantism are natural bedfellows: arguments have been mounted from endurantism to presentism and vice versa. I generalise an argument against the compatibility between presentism and endurantism offered recently by Tallant (forthcoming. “Presentism, Persistence and Trans-temporal Dependence.” Philosophical Studies). I then show how to reformulate endurantism so that it is compatible with presentism. I demonstrate that this reformulated version of endurantism can do the same work with respect to the problem of temporary intrinsics as can standard definitions.