The development of numerical estimation: evidence against a representational shift

How do our mental representations of number change over development? The dominant view holds that children (and adults) possess multiple representations of number, and that age and experience lead to a shift from greater reliance upon logarithmically organized number representations to greater reliance upon more accurate, linear representations. Here we present a new theoretically motivated and empirically supported account of the development of numerical estimation, based on the idea that number‐line estimation tasks entail judgments of proportion. We extend existing models of perceptual proportion judgment to the case of abstract numerical magnitude. Two experiments provide support for these models; three likely sources of developmental change in children’s estimation performance are identified and discussed. This work demonstrates that proportion‐judgment models provide a unified account of estimation patterns that have previously been explained in terms of a developmental shift from logarithmic to linear representations of number.     

Trait Anxiety and Fear Responses to Safety Cues: Stimulus Generalization or Sensitization?

Abnormal fear responding to threat cues may contribute to the aetiology and maintenance of persistent fears and pathological anxiety. Chronic anxiety may also involve abnormal fear responding to ??safety?? cues, which do not signal danger. Yet investigations of fear responding to acquired safety cues are scarce and the basis of such responding remains unclear. Moreover, previous studies do not distinguish between stimulus generalization (an associative mechanism based on perceptual similarity between threat and safety cues) and sensitization (a non-associative mechanism whereby fear responses to any novel, intense, or fear-related stimulus are temporarily elevated). This study investigated responses to acquired safety cues in volunteers with varying trait anxiety, using a novel fear conditioning paradigm designed to distinguish between effects of trait anxiety on generalization and sensitization. The paradigm used three conditioned stimuli: a threat cue (CS+) and two safety cues (CS?), one perceptually similar to the CS+ and one perceptually dissimilar. Conditioned fear to these cues was indexed by fear potentiation of the startle blink reflex, skin conductance responses, and self-report. To examine how trait anxiety moderated responses to safety cues, participants were divided into high and low trait anxiety subgroups. Startle, skin conductance, and self-reported fear measures indicated that generalization of fear occurred for the safety cue which resembled the threat cue, but not for the perceptually dissimilar safety cue, consistent with the stimulus generalization hypothesis. There was some evidence that stimulus generalization was exaggerated in anxious individuals. The current study sheds light on the mechanism by which fear responses to safety cues arise in healthy individuals, and offers some insight into the influence of this mechanism in chronic anxiety.     

Relations between print exposure and literacy skills: New evidence from Grade 1–5

This study had two main aims: (a) to develop checklists adapted for the French culture and the age of the children whose level of print exposure (PE) was to be assessed and (b) to analyse the impact of print exposure on various literacy skills. The checklists consisted of Titles, Magazines, and Authors (targets and foils). The children's responses decreased from Titles to Magazines to Authors. With children in first grade and their parents (Expt 1), we established that PE shows links to socio‐economic status. In a longitudinal study conducted in Grade 1 (Expt 2), a hierarchical regression indicated that PE predicts variance in word reading after age, phonological skills, and letter knowledge have been partialled out. In older children (Expt 3), and only in Grades 4–5, PE accounts for unique variance in word recognition, in word spelling, and, finally, in vocabulary, after chronological and lexical age have been controlled for.     

“I knew that I wasn’t cis,I knew that,but I didn’t know exactly”: Gender identity development,expression and affirmation in youth who access gender affirming medical care

Abstract

Background: Research about gender identity development is still in its infancy, especially among youth who experience gender dysphoria and are accessing gender-affirming medical care.

Aims: This article contributes to the literature on how gender identity and gender dysphoria is experienced, expressed and addressed by youth who have started, or are just about to start, a gender-affirming medical intervention.

Methods: The project draws from qualitative interviews with 36 trans children and youth of different ages and stages of puberty. The data were collected in three specialized Canadian clinics that offer gender-affirming care and they were analyzed through inductive thematic analysis.

Results: Two interlinked dimensions of the youth’s lives allow meaning-making of their gender identity: 1) internal or personal and 2) interactional or social processes. Careful analysis reveals three gender identity development pathways that may be taken by youth, from early questioning to the affirmation of their gender identity. A discussion of current models of gender identity development and their limitations concludes the article.     

‘If they didn’t support me,I most likely wouldn’t be here’: Transgender young people and their parents negotiating medical treatment in Australia

Abstract

Background: It is increasingly recognized that transgender young people require affirming medical care, however the provision of such care may be mitigated by the availability of services and the views of parents.

Aims: This study aimed to explore the views of Australian transgender young people (aged 11–17) and their parents with regards to medical treatment.

Methods: Ten qualitative interviews were conducted with parent-child dyads in two Australian states. Thematic analysis was undertaken on responses to interview questions related to family relationships, views about medical treatment (specifically hormone blockers and hormones), and the relationship between medical treatment and sense of self.

Results: Themes developed focused on the importance of strong supportive parent-child relationships, the meaning of and access to hormone blockers, and the meaning of and access to hormones.

Discussion: The paper concludes by discussing the implications of the findings for clinical services, particularly in relation to supporting parents to be affirming of a transgender child, the need to prepare transgender young people and their parents for the passage of time in regards to medical treatment, and the need to focus on expectations in regards to sense of self in relation to medical treatment.     

It’s a journey: from media effects to dynamic systems

ABSTRACT

This paper aims to demonstrate how an analytical paradigm shift from the General Linear Model (GLM) used in most communication processes and effects research to dynamic systems theory (DST, a nonlinear mathematical theory), fundamentally changes one’s research assumptions and research questions and leads to novel approaches to research design, data collection, and analysis. Concrete examples demonstrating these changes are drawn from the co-viewing literature. In addition, we discuss how data collected and interpreted using the GLM can be re-analyzed and re-interpreted to further inform our understanding of communication behavior when we use the assumptions of dynamic systems theory to derive new predictions.     

The experiences of gender diverse and trans children and youth considering and initiating medical interventions in Canadian gender-affirming speciality clinics

Abstract

Background: Canadian specialty clinics offering gender-affirming care to trans and gender diverse children and youth have observed a significant increase in referrals in recent years, but there is a lack of information about the experiences of young people receiving care. Furthermore, treatment protocols governing access to gender-affirming medical interventions remain a topic of debate.

Aims: This qualitative research aims to develop a deeper understanding of experiences of trans youth seeking and receiving gender-affirming care at Canadian specialty clinics, including their goals in accessing care, feelings about care and medical interventions they have undergone, and whether they have any regrets about these interventions.

Methods: The study uses an adapted Grounded Theory methodology from social determinants of health perspective. Thirty-five trans and gender diverse young people aged 9 to 17?years were recruited to participate in semi-structured interviews through the specialty clinics where they had received or were waiting for gender-affirming medical interventions such as puberty blockers, hormone therapy, and surgery.

Results: Young people felt positively overall about the care they had received and the medical interventions they had undergone, with many recounting an improvement in their well-being since starting care. Most commonly shared frustrations concerned delays in accessing interventions due to clinic waiting lists or treatment protocols. Some youth described unwanted medication side-effects and others said they had questioned their transition trajectory at certain moments in the past, but none regretted their choice to undergo the interventions.

Discussion: The results suggest that trans youth and gender diverse children are benefiting from medical gender-affirming care they receive at specialty clinics, providing valuable insight into their decision-making processes in seeking care and specific interventions. Providers might consider adjusting aspects of treatment protocols (such as age restrictions, puberty stage, or mental health assessments) or applying them on a more flexible, case-by-case basis to reduce barriers to access.     

2003 Division 35 Presidential Address: Feminist Leadership: Feminist Visions And Diverse Voices

Although the theories and models on feminism and leadership exist, there has been little study of the intersection of the two. The literature on feminist leadership is scant. Few have defined it and fewer still have researched it. Thus, Feminist Leadership was chosen for my presidential initiative. This initiative kicked off a dialogue about feminist leadership that is summarized in this article. The article is based on my presidential address presented at the 2003 Annual Convention of the American Psychological Association in concluding my year as President of Division 35, the Society for the Psychology of Women. It identifies some challenges faced by women in leadership positions and by feminist leaders. It identifies the major issues that emerged during a web-based dialogue about feminist leadership. It discusses the intersection between theories of leadership and feminism. It ends with the lessons learned and implications for the future of feminist leadership.