Increased parasympathetic activity and ability to generate positive emotion: The influence of the BDNF Val66Met polymorphism on emotion flexibility

Cross-species behavioral research suggests that a single nucleotide polymorphism (SNP) in the brain-derived neurotrophic factor (BDNF) gene (rs6265, Val66Met), influences behavioral inflexibility. This SNP has not yet been linked to variability in emotion-related behaviors, despite broader evidence suggesting an association may be present. This investigation explored the role of the BDNF Val66Met polymorphism in emotion response behaviors measured during a lab-based emotional provocation. Specifically, the influence of BDNF Val66Met in emotion flexibility was explored in a sample of healthy adults (N?=?120), emotion responses were recorded during the emotional provocation on multiple dimensions, in response to emotionally-evocative videos of negative then positive valence. These results suggest that Met carriers exhibit decreased parasympathetic responding, and reduced ability to generate positive emotion, relative to Val homozygotes. These findings are the first to suggest an association between the Met allele and a pattern of responding indicative of emotion inflexibility that might afford greater risk for psychopathology.     

Discrimination and Reversal Learning by Toddlers Aged 15-23 Months

Few studies have investigated simple discrimination and discrimination reversal learning by children younger than 2 years. Extant research has shown that teaching discrimination reversals may be challenging with this population. We used social reinforcement and correction procedures to teach simple simultaneous discrimination and discrimination reversal tasks involving three pairs of animal pictures displayed in a paper notebook. Participants were eight typically developing toddlers aged 15-23 months. All learned at least one simple discrimination/discrimination reversal problem. Four children learned all problems and showed evidence of learning set formation. Perhaps surprisingly, discrimination reversals were sometimes learned more rapidly than original discriminations. The procedures suggest a potentially efficient methodology for investigating more complex aspects of relational learning in toddlers.

     

Effects of Monitoring and Social Reprimands on Instruction-Following in Undergraduate Students

The effects of the magnitude of nonverbal consequences, monitoring, and social consequences on instruction-following were evaluated. Twenty-four undergraduates were exposed to a matching-to-sample procedure. The undergraduates underwent four experimental phases that differed regarding the presence or absence of the observer and the correspondence or non-correspondence of the instructions with the nonverbal contingency. In Experiments 1 and 2, the magnitudes of the nonverbal consequences were manipulated, and in Experiment 3, the effects of verbal reprimands on instruction-following were evaluated. The results revealed that alterations in the magnitudes of nonverbal consequences did not influenced the performances of the participants and that monitoring increased the probability that the participants would follow the instructions but not to an extent sufficient to maintain performance when the consequences did not correspond to the nonverbal contingency. The inclusion of verbal reprimands was necessary to achieve this effect. These results support the proposition that social control is important for maintaining instruction-following.

     

French Validation of the Overexcitability Questionnaire 2: Psychometric Properties and Factorial Structure

Overexcitability corresponds to an overall response to stimulations in 5 domains: psychomotor, sensual, intellectual, imaginational, and emotional. The aim of this study was to develop a French version of the Overexcitability Questionnaire 2 (OEQ2) and to expand its psychometric properties. Two studies were conducted: one with a sample of 474 adolescents and another with a sample of 436 adults. Internal consistency, factorial structure, and validity (correlations with intelligence, personality, and alexithymia) were examined. The French OEQ2 showed satisfactory psychometric properties, thus advocating for its use in further research on overexcitability and in clinical practice.     

Sexual Orientation and Substance Use: The Moderation of Parental Attachment

There is a substantial amount of research exploring patterns of sexual orientation and substance use, often finding increased substance use for non-heterosexuals. An additional body of research explores the concept of family support from a number of perspectives. There is a noted lack of overlay between family support, sexual orientation, and substance use. This research uses data from Waves III and IV of the National Longitudinal Study of Adolescent Health to examine how parental attachment, as a measure of family support, may moderate the association between sexual orientation and substance use. We test the notion that as parental attachment increases, substance use patterns will decrease for both heterosexual and non-heterosexual individuals. We also hypothesize that parental attachment will have a stronger effect of decreasing substance use for non-heterosexuals than for heterosexuals.     

How the Eyes Tell Lies: Social Gaze During a Preference Task

Social attention is thought to require detecting the eyes of others and following their gaze. To be effective, observers must also be able to infer the person's thoughts and feelings about what he or she is looking at, but this has only rarely been investigated in laboratory studies. In this study, participants' eye movements were recorded while they chose which of four patterns they preferred. New observers were subsequently able to reliably guess the preference response by watching a replay of the fixations. Moreover, when asked to mislead the person guessing, participants changed their looking behavior and guessing success was reduced. In a second experiment, naïve participants could also guess the preference of the original observers but were unable to identify trials which were lies. These results confirm that people can spontaneously use the gaze of others to infer their judgments, but also that these inferences are open to deception.     

Student-produced representations as a means for interrupting the flow of an interview / Representaciones producidas por una alumna para interrumpir el flujo de una entrevista

Abstract

This work provides evidence that children as young as six years old successfully leverage written representations to their own purposes. During a modified clinical interview, Maggie created an idiosyncratic written representation to negotiate understanding of the interview task. In this move, Maggie shifted her role in the interview from sharing her own thinking to understanding the interviewer’s thinking. Her representations were not strictly for communication but also for control. This fleeting but illuminating episode points to young children’s intuitive perspective on written representations as a cultural tool.     

A first grade student’s exploration of variable and variable notation / Una alumna de primer grado explora las variables y su notación

Abstract

This paper presents a case study of a first grade student to illustrate the diversity of her understandings related to variables and variable notation. While prior research has documented secondary school students’ difficulties with variables and variable notation, we identify many productive understandings in this much younger student, leading us to question the prevailing argument that students might have difficulties with variables due mostly to their own limitations. We draw our data from a teaching experiment that explored functional relationships. Individual interviews were carried out with a subset of the students in the experiment prior to, as well as mid-way through and at the end of the experiment. This paper focuses on a set of three interviews with one of the first grade students. We illustrate the shifts that occurred in the student’s understandings about variables and variable notation across as well as within each of the three interviews.     

Gender Differences in Experiences with Couples Treatment for IPV

Evidence suggests that conjoint treatment can be effective for certain violent couples in certain situations (Finkel in Rev Gen Psychol 11:193–207, 2007; LaTaillade et al. in J Cogn Psychother 20:393–410, 2006; Fals-Stewart et al. in J Consult Clin Psych 73:239–248, 2005; Stith et al. in J Marital Fam Ther 29(3):407–426, 2003). However, not as much is known about which aspects of conjoint treatment make a difference, nor if male and female participants experience these elements of treatment differently. Knowing which components of couples’ treatment clients perceive as helpful—and whether their perceptions differ by gender—will allow us to redefine models with an eye toward making them more effective. In this study we used qualitative methods to examine the aspects of a particular couples’ treatment program (Stith and McCollum in Aggress Violent Beh 16(4):312–318, 2011) that clients found useful while also considering the differences between men’s and women’s responses. Fourteen couples, in which the male had been identified as the primary aggressor, were interviewed multiple times to gain their perspectives about components of the program they found helpful and their suggestions for program improvement. Themes are analyzed by gender. Implications for treatment and future research are provided.