How much does number matter to a monkey (Macaca mulatta)?

Although many animal species can represent numerical values, little is known about how salient number is relative to other object properties for nonhuman animals. In one hypothesis, researchers propose that animals represent number only as a last resort, when no other properties differentiate stimuli. An alternative hypothesis is that animals automatically, spontaneously, and routinely represent the numerical attributes of their environments. The authors compared the influence of number versus that of shape, color, and surface area on rhesus monkeys' (Macaca mulatta) decisions by testing them on a matching task with more than one correct answer: a numerical match and a nonnumerical (color, surface area, or shape) match. The authors also tested whether previous laboratory experience with numerical discrimination influenced a monkey's propensity to represent number. Contrary to the last-resort hypothesis, all monkeys based their decisions on numerical value when the numerical ratio was favorable.     

In times of uncertainty: predicting the survival of long-distance relationships

The authors examined the degree to which ratings of negative affectivity (NA) and relational security predicted the breakup of long-distance and same-city dating relationships. Couples completed initial surveys and were contacted 1 year later about the status of their relationship. In the initial surveys, both partners completed NA and relational security assessments. Overall, both the NA and relational security of men and women predicted stability. However, as predicted, structural equation modeling revealed a gender difference in the interaction between NA and long-distance status. The presence of high NA in men was associated with breakup for long-distance but not same-city couples. High NA in women was not differentially associated with relational stability on the basis of long-distance status. The authors discuss the psychological basis of this gender difference.     

Extraversion and neuroticism in team sport participants, individual sport participants, and nonparticipants

Scores on Extraversion and on Neuroticism as measured by the Eysenck Personality Inventory were compared for 90 undergraduate team sport participants, individual sport participants, and nonparticipants (43 men, 47 women, M age = 20.3 yr.). From past research and Eysenck's biological theory of personality, it was hypothesized that sport participants would score higher on Extraversion and lower on Neuroticism than nonparticipants, and that team participants would score higher on Extraversion and perhaps higher on Neuroticism than individual sport participants. By comparing scores for students in first year and final year, it was also investigated whether pre-existing personality differences drew people to sport (the gravitational hypothesis) or whether personality changed as a function of sport participation (the developmental hypothesis). The main findings were that team participants scored higher on Extraversion than both individual sport participants and nonparticipants, and that test scores did not change over time, supporting the gravitational hypothesis for Extraversion.     

With Hope and Imagination: Imaginative Moral Decision-Making in Neonatal Intensive Care Units

Although the role of imagination in moral reasoning is often neglected, recent literature, mostly of pragmatist signature, points to imagination as one of its central elements. In this article we develop some of their arguments by looking at the moral role of imagination in practice, in particular the practice of neonatal intensive care. Drawing on empirical research, we analyze a decision-making process in various stages: delivery, staff meeting, and reflection afterwards. We show how imagination aids medical practitioners demarcating moral categories, tuning their actions, and exploring long-range consequences of decisions. We argue that imagination helps to bring about at least four kinds of integration in the moral decision-making process: personal integration by creating a moral self-image in moments of reflection; social integration by aiding the conciliation of the diverging perspectives of the people involved; temporal integration by facilitating the parties to transcend the present moment and connect past, present, and future; and epistemological integration by helping to combine the various forms of knowledge and experience needed to make moral decisions. Furthermore, we argue that the role of imagination in these moral decision-processes is limited in several significant ways. Rather than being a solution itself, it is merely an aid and cannot replace the decision itself. Finally, there are also limits to the practical relevance of this theoretical reflection. In the end, it is up to care professionals as reflective practitioners to re-imagine the practice of intensive care and make the right decisions with hope and imagination.

Assessment Criteria Indicative of Deception (ACID): an integrated system of investigative interviewing and detecting deception

This study describes the assimilation and validation of Assessment Criteria Indicative of Deception (ACID). ACID is derived from investigative interviewing, Criteria‐Based Content Analysis, Reality Monitoring, and interpersonal deception. Each component has been previously published. Thirty‐eight university undergraduates entered a professor's office and either stole an exam or replaced an exam that had been stolen previously. They were interviewed 1 week later with the Reality Interview, which is deliberately challenging and aims to enhance the detection of deception. Half responded honestly and completely; half distorted their responses to avoid incrimination. Incentives were provided. Honest responses were longer, more detailed, and contained more admissions of potential mistakes. Most importantly, honest respondents benefited from attempts to enhance recall, whereas these same attempts caused deceptive respondents to provide shorter, more repetitive statements. This is a promising technique; 33 of 38 cases were classified accurately. Discussion includes characteristics of deception, process of deception during an investigative interview, hypothetical interview strategies to facilitate the detection of deception, strengths and weaknesses of the study, and areas for future research. Copyright © 2008 John Wiley & Sons, Ltd.     

Cognitive control of obsessional thoughts

A defining characteristic of obsessive-compulsive disorder (OCD) is unsuccessful suppression of unwanted thoughts. Recent evidence of individual differences in ability to control intrusive thoughts may inform our understanding of failures of cognitive control associated with OCD symptomatology. The current study investigated characteristics of cognitive style that are potentially associated with OCD symptoms and may influence response to unwanted thoughts, including perceived ability to control thoughts and tendency to ruminate. Undergraduate students (N = 166) completed self-report measures of OCD symptoms, perceived thought control, and ruminative thinking. They were then presented with a distressing target thought and completed a standard thought suppression paradigm. Correlational results indicated that, controlling for anxiety and depression, OCD symptoms were positively associated with rumination and inversely associated with perceived thought control ability. In addition, OCD symptoms were associated with higher levels of distress and greater spontaneous efforts to suppress the target thought during a baseline period, while perceived thought control ability predicted frequency of target thoughts during suppression. Finally, results of the experimental manipulation confirmed that participants instructed to suppress experienced more intrusions during the recovery period. Clinical implications and future directions are discussed.     

The Acceptability and Representativeness of Standardized Parent-Child Interaction Tasks

Analogue behavioral observation of structured parent-child interactions has often been used to obtain a standardized, unbiased measure of child noncompliance and parenting behavior. However, for assessment information to be clinically relevant, it is essential that the behavior observed be similar to that which the child normally experiences and elicits. Furthermore, assessment procedures should be socially appropriate and acceptable to participants in order to facilitate investment in the assessment, and potentially treatment, process. Although analogue tasks have been shown to have reasonable psychometric properties, the social validity of these methods has not been evaluated. This study examined the acceptability and representativeness of 4 widely utilized, laboratory-based parent-child interaction tasks in a sample of 43 nonreferred, 3- to 6-year old children and their mothers, who were of European-American or African-American ethnicity. Mothers rated the acceptability of each task and the degree to which it was representative of “typical” interactions occurring with the child. Repeated-measures analyses of variance revealed high levels of acceptability and representativeness for all tasks, but consistent differences across tasks. These ratings were predominantly stable over a 2-week period. Additionally, social validity ratings were significantly associated with parenting self-esteem, maternal ethnicity, child gender, and child age, but not child behavior problems. Limitations and implications of these findings for the assessment of parent-child interaction are discussed.     

The Nature of Preschool Phonological Processing Abilities and Their Relations to Vocabulary, General Cognitive Abilities, and Print Knowledge

The development of reading-related phonological processing abilities (PPA) represents an important developmental milestone in the process of learning to read. In this cross-sectional study, confirmatory factor analysis was used to examine the structure of PPA in 129 younger preschoolers (M = 40.88 months, SD = 4.65) and 304 older preschoolers (M = 56.49 months, SD = 5.31). A 2-factor model in which phonological awareness and phonological memory was represented by one factor and lexical access was represented by a second factor provided the best fit for both samples and was largely invariant across samples. Measures of vocabulary, cognitive abilities, and print knowledge were significantly correlated with both factors, but phonological awareness/memory had unique relations with word reading. Despite significant development of PPA across the preschool years and into kindergarten, these results show that the structure of these skills remains invariant.