Visual search for rare targets: distracter tuning as a mechanism for learning from repeated target-absent searches

In the typical visual search experiment, participants search for targets that are present on half of the trials and absent on the other half. However, many real-world tasks involve targets that are present only occasionally. Given this, it is important to know how people deal with the problem of finding targets they have little experience with. One possibility is that they develop an awareness of the degree to which they have effectively completed a search through complex target-absent scenes. To test this hypothesis, we had participants complete two relatively long search tasks in which only a minority of trials included targets. Stimuli were cluttered real-world scenes, and targets were defined by category. We examined participants' ability to terminate search on the target-absent scenes based on an accurate assessment of scene difficulty. Scene difficulty was estimated by computing the mean correct-trial response time (RT) for each of the target-absent scenes across all participants. These group RTs were then correlated with each participants' individual correct-trial RTs for the same stimuli to assess the degree to which a given participant's search-termination times were correlated with those of the group. These correlations successfully predicted participants' target-detection success in both experiments. These experiments suggest that an integral part of visual search is the need to calibrate search behaviour to scenes of varying levels of complexity even when no targets are present.     

Boundary Issues and Multiple Relationships in Genetic Counseling Supervision: Supervisor,Non-supervisor,and Student Perspectives

Boundary issues and multiple relationships potentially affect all supervision interactions. Boundary crossings are departures from the strictest professional role and may or may not benefit supervisees. Boundary violations are outside common practice and may place supervisees at significant risk. Multiple relationships occur when supervisors concurrently or consecutively hold two or more roles with supervisees. Studies in other fields indicate supervisors and supervisees may be uncertain about professional conduct regarding these issues. In this study, genetic counselor supervisors (n?=?126), non-supervisors (n?=?72), and genetic counseling students (n?=?129) completed an anonymous survey investigating four major questions: 1) Are various boundary issues and multiple relationships perceived as differentially appropriate? 2) Do supervisor, non-supervisor, and student perceptions differ? 3) What challenging situations have respondents experienced? and 4) What management strategies did they use? There was general agreement among groups in their appropriateness ratings of 56 hypothetical supervisor behaviors, although supervisor ratings tended to reflect stricter boundaries regarding the appropriateness of interactions than student ratings. A majority rated unavoidable boundary crossings and supervisor multiple relationships involving an academic relationship as most appropriate, and romantic/sexual multiple relationships and/or boundary violations as least appropriate. Analysis of respondents’ actual challenging situations revealed many involved boundary violations, placed students at risk of harm, and often resulted in student compliance.     

Why is Everyone So Anxious?: An Exploration of Stress and Anxiety in Genetic Counseling Graduate Students

Stress is an inevitable part of daily life. Studies of graduate student stress exist, but none include genetic counseling students. The present mixed-methods study investigated 225 genetic counseling students’ stress and anxiety levels using the State-Trait Anxiety Inventory (STAI; Spielberger et al. 1983), frequency and intensity of stressors associated with their graduate experience, positive and challenging aspects of their experience, and their stress management advice for prospective students. Principal axis factor analysis yielded five conceptual factors underlying the stressors: Professional Uncertainty, Personal Life Events, Interpersonal Demands, Academic Demands, and Isolating Circumstances. Exploratory model fitting using regression yielded four significant predictors accounting for 19% of the variance in state anxiety: (1) trait anxiety, (2) the Interpersonal Demands factor, (3) the Isolating Circumstances factor, and (4) the interaction between the Professional Uncertainty factor and advanced student status. Content analysis of open-ended responses identified several themes. For instance, most students enjoyed what they were learning, interactions with colleagues, and affirmation of their career choice, while certain academic and professional challenges were particularly stressful (e.g., workload, time constraints, clinical rotations). Additional findings, program implications, and research recommendations are provided.     

Prospective memory in a language-trained chimpanzee (Pan troglodytes)

Prospective memory involves the encoding, retention, and implementation of an intended future action. Although humans show many forms of prospective memory, less is known about the future oriented processes of nonhuman animals, or their ability to use prospective memory. In this experiment, a chimpanzee named Panzee, who had learned to associate geometric forms called lexigrams with real-world referents, was given a prospective memory test. Panzee selected between two foods the one she wanted to receive more immediately. That food was scattered in an outdoor yard where she could forage for it. Also outdoors were lexigram tokens, one of which represented the food item that remained indoors throughout a 30 min period, and that could be obtained if Panzee brought in the token that matched that food item. After foraging for the selected food item, Panzee consistently remembered to retrieve and return the correct token when food was available indoors, whereas on control trials involving no indoor food she rarely returned a token. This indicated that Panzee encoded information relevant to the future action of token retrieval after extended delays for one type of food, even when a more immediately preferred food was available.     

Conservatives are happier than liberals, but why? Political ideology, personality, and life satisfaction

Political conservatives are happier than liberals. We proposed that this happiness gap is accounted for by specific attitude and personality differences associated with positive adjustment and mental health. In contrast, a predominant social psychological explanation of the gap is that conservatives, who are described as fearful, defensive, and low in self-esteem, will rationalize away social inequalities in order to justify the status quo (system justification). In four studies, conservatives expressed greater personal agency (e.g., personal control, responsibility), more positive outlook (e.g., optimism, self-worth), more transcendent moral beliefs (e.g., greater religiosity, greater moral clarity, less tolerance of transgressions), and a generalized belief in fairness, and these differences accounted for the happiness gap. These patterns are consistent with the positive adjustment explanation.     

Report from the National Society of Genetic Counselors Service Delivery Model Task Force: A Proposal to Define Models, Components, and Modes of Referral

The Service Delivery Model Task Force (SDMTF) was appointed in 2009 by the leadership of the National Society of Genetic Counselors (NSGC) with a charge to research and assess the capacity of all existing service delivery models to improve access to genetic counseling services in the context of increasing demand for genetic testing and counseling. In approaching this charge, the SDMTF found that there were varying interpretations of what was meant by "service delivery models" and the group held extensive discussions about current practices to arrive at consensus of proposed definitions for current genetic service delivery models, modes of referral and components of service delivery. The major goal of these proposed definitions is to allow for conversations to begin to address the charge to the committee. We propose that current models of service delivery can be defined by: 1) the methods in which genetic counseling services are delivered (In-person, Telephone, Group and Telegenetics), 2) the way they are accessed by patients (Traditional referral, Tandem, Triage, Rescue and Self-referral) and 3) the variable components that depend upon multiple factors unique to each service setting. This report by the SDMTF provides a starting point whereby standardized terminology can be used in future studies that assess the effectiveness of these described models to overcome barriers to access to genetic counseling services.     

Coming to Our Senses: Feeling and Knowledge in Theology and Ministry

This essays returns to a question I explored years ago as a pregnant and nursing mother: What is the nature of tactile knowledge and how might the construction of theology take such knowledge into greater consideration? Feeling as a source and site for knowledge has been derided for centuries despite efforts of modern psychologists to rehabilitate its role and of feminist theorists to challenge its sexist stereotypes. This essay explores the relationship between feeling, bodies, and knowledge in theology, reviewing negative perceptions and viable avenues for positive reconstruction. It argues that the repression of feeling has troubling consequences for theological education and that theological studies has much to gain from the “affective revolution” in the sciences.     

Relational Aggression in College Students' Dating Relationships

This study focused on romantic relational aggression, a variable that appears to predict intimate partner violence but remains understudied in the college population. College student participants (N?=?260) between the ages of 18 and 25 who reported that they had been in a romantic relationship during the past year completed measures of romantic relational aggression, sex role attitudes, acceptance of couple violence, and trait anger. Although respondent gender and sex role attitudes predicted romantic relational aggression as expected, gender did not moderate the relationship between sex role attitudes and relational aggression. Acceptance of violence predicted the perpetration of romantic relational aggression above and beyond the effects of trait anger and sex role attitudes. Trait anger also predicted romantic relational aggression.     

Generalist genes and cognitive abilities in Chinese twins

This study considered how far nonverbal cognitive, language and reading abilities are affected by common genetic influences in a sample of 312 typically developing Chinese twin pairs aged from 3 to 11 years. Children were individually given tasks of Chinese word reading, receptive vocabulary, phonological memory, tone awareness, syllable and rhyme awareness, rapid automatized naming, morphological awareness and orthographic skills, and Raven's Colored Progressive Matrices. Factor analyses on the verbal tasks adjusted for age indicated two factors: Language as the first factor and Reading as the second factor. Univariate genetic analyses indicated that genetic influences were substantial for nonverbal cognitive ability and moderate for language and reading. Multivariate genetic analyses showed that nonverbal cognitive ability, language and reading were influenced by shared genetic origins, although there were specific genetic influences on verbal skills that were distinct from those on nonverbal cognitive ability. This study extends the Generalist Genes Hypothesis to Chinese language and reading skills, suggesting that the general effects of genes could be universal across languages.