On the nature of perceptual limits in vision

Summary Studies of attention have generally assumed that the principal limit to visual perception involves the capacity to identify a stimulus. Analyses of responses in visual tasks, however, suggest that errors can arise from a loss of position information, as well as a loss of identity information, and that these two types of errors may be affected by different variables. Based on this, we have proposed that the difficult aspect of perception is not that of recognizing the form of the stimulus but rather determining its position relative to other items in the field. To demonstrate this, we conducted a series of experiments on lateral masking that showed that the failure to perceive a parafoveal stimulus surrounded by other items is due to two quite separate components: a loss of identity information induced by the immediately adjacent items and a loss of position information induced by both adjacent and non-adjacent items.This research was supported by grant A-9581 from the Natural Sciences and Engineering Research Council of Canada to the senior author. The first two experiments were reported in a paper to the annual meeting of the Psychonomics Society, San Antonio, 1984     

How does narrative cue children's perspective taking?

Three experiments with a total of 120 children between 4 and 9 years of age revealed systematic errors in the recall of deictic terms from a narrative. In some cases, the terms were inconsistent with the perspective of a protagonist. The errors occurred in all age groups and were at the same level whether the protagonist was "good" or "bad" but were less common in a narrative that did not include a protagonist. The pattern of errors suggests that children adopted a perspective within the narrative. Moreover, it seems that whereas the form of the narrative is sufficient to provoke a shift in perspective, children might find it even easier to adopt a perspective when the narrative content is about a protagonist. It thus seems that the form and the content of the narrative (that it is about a person) can combine to give a strong cue to perspective.     

Review

Ohne Zusammenfassung

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Review

     

Caricatures,Myths, and White Lies

Pedagogical situations require white lies: in teaching philosophy we make decisions about what to omit, what to emphasise, and what to distort. This article considers when it is permissible to distort the historical record, arguing for a tempered respect for the historical facts. It focuses on the rationalist/empiricist distinction, which still frames most undergraduate early modern courses despite failing to capture the intellectual history of that period. It draws an analogy with Michael Strevens's view on idealisation in causal explanation to distinguish between myths and caricatures. Myths are distortions of the historical record that undermine students' understanding of the past, despite having other pedagogical benefits (being illuminative of some other period, or helping uptake of philosophical skills and methods). Caricatures are distortions that either increase or are indifferent to understanding of the past. Mythmaking, the article argues, is unjustified.     

The argument from surprise

I develop an account of productive surprise as an epistemic virtue of scientific investigations which does not turn on psychology alone. On my account, a scientific investigation is potentially productively surprising when (1) results can conflict with epistemic expectations, (2) those expectations pertain to a wide set of subjects. I argue that there are two sources of such surprise in science. One source, often identified with experiments, involves bringing our theoretical ideas in contact with new empirical observations. Another, often identified with simulations, involves articulating and bringing together different parts of our knowledge. Both experiments and simulations, then, can surprise.     

Analyses do not support the parasite-stress theory of human sociality

Re-analysis of the data provided in the target article reveals a lack of evidence for a strong, universal relationship between parasite stress and the variables relating to sociality. Furthermore, even if associations between these variables do exist, the analyses presented here do not provide evidence for Fincher & Thornhill's (F&T's) proposed causal mechanism.     

Transactional pathways of transgender identity development in transgender and gender-nonconforming youth and caregiver perspectives from the Trans Youth Family Study

Background: A growing body of research has examined transgender identity development, but no studies have investigated developmental pathways as a transactional process between youth and caregivers, incorporating perspectives from multiple family members. The aim of this study was to conceptualize pathways of transgender identity development using narratives from both transgender and gender-nonconforming (TGN) youth and their cisgender (nontransgender) caregivers.

Methods: The sample included 16 families, with 16 TGN youth, ages 7 to 18 years, and 29 cisgender caregivers (N = 45 family members). TGN youth represented multiple gender identities, including trans boy (n = 9), trans girl (n = 5), gender-fluid boy (n = 1), and girlish boy (n = 1). Caregivers included mothers (n = 17), fathers (n = 11), and one grandmother. Participants were recruited from LGBTQ community organizations and support networks for families with transgender youth in the Midwest, Northeast, and South regions of the United States. Each family member completed a one-time, in-person semistructured qualitative interview that included questions about transgender identity development.

Results: Analyses revealed seven overarching themes of transgender identity development, which were organized into a conceptual model: Trans identity development, sociocultural influences/societal discourse, biological influences, family adjustment/impact, stigma/cisnormativity, support/resources, and gender affirmation/actualization.

Conclusions: Findings underscore the importance of assessing developmental processes among TGN youth as transactional, impacting both youth and their caregivers.     

Secondary migration and relocation among African refugee families in the United States

The purpose of this study was to understand the secondary migration and relocation of African refugees resettled in the United States. Secondary migration refers to moves out of state, while relocation refers to moves within state. Of 73 recently resettled refugee families from Burundi and Liberia followed for 1 year through ethnographic interviews and observations, 13 instances of secondary migration and 9 instances of relocation were identified. A family ecodevelopmental framework was applied to address: Who moved again, why, and with what consequences? How did moving again impact family risk and protective factors? How might policies, researchers, and practitioners better manage refugees moving again? Findings indicated that families undertook secondary migration principally for employment, affordable housing, family reunification, and to feel more at home. Families relocated primarily for affordable housing. Parents reported that secondary migration and relocation enhanced family stability. Youth reported disruption to both schooling and attachments with peers and community. In conclusion, secondary migration and relocation were family efforts to enhance family and community protective resources and to mitigate shortcomings in resettlement conditions. Policymakers could provide newly resettled refugees jobs, better housing and family reunification. Practitioners could devise ways to better engage and support those families who consider moving.