Perceptual load affects change blindness in a real‐world interaction

Change blindness is the striking inability to detect seemingly obvious changes that occur between views of a scene. The current study assessed perceptual load as a factor that may affect change blindness for human faces. The study had participants (n = 103) interact with a researcher in a testing room that imposed low or high perceptual load. Midway through the conversation, the researcher was replaced by another person. Thirty‐nine percent of participants failed to detect the change. There was a significant effect of perceptual load, with greater change detection under low load (71%) than high load (52%). This research suggests that the perceptual load imposed by a task may have a significant effect on the likelihood of change blindness and ought to be considered in future research.     

Context and Perceptual Salience Influence the Formation of Novel Stereotypes via Cumulative Cultural Evolution

We use a transmission chain method to establish how context and category salience influence the formation of novel stereotypes through cumulative cultural evolution. We created novel alien targets by combining features from three category dimensions—color, movement, and shape—thereby creating social targets that were individually unique but that also shared category membership with other aliens (e.g., two aliens might be the same color and shape but move differently). At the start of the transmission chains each alien was randomly assigned attributes that described it (e.g., arrogant, caring, confident). Participants were given training on the alien‐attribute assignments and were then tested on their memory for these. The alien‐attribute assignments participants produced during test were used as the training materials for the next participant in the transmission chain. As information was repeatedly transmitted an increasingly simplified, learnable stereotype‐like structure emerged for targets who shared the same color, such that by the end of the chains targets who shared the same color were more likely to share the same attributes (a reanalysis of data from Martin et al., 2014 which we term Experiment 1). The apparent bias toward the formation of novel stereotypes around the color category dimension was also found for objects (Experiment 2). However, when the category dimension of color was made less salient, it no longer dominated the formation of novel stereotypes (Experiment 3). The current findings suggest that context and category salience influence category dimension salience, which in turn influences the cumulative cultural evolution of information.     

Engaging with the Hatred of the Other: Personal Reflections Discussion of “States of Exile and Marginalization”

Drawing upon experiences associated with racialized tensions and interactions related to living in neocolonial, post-apartheid South Africa, I engage with Gillian Straker’s complex paper on “States of Exile and Marginalization” (this issue) as elaborated in response to Moffatt’s film Night Cries. In particular, I question what it means to receive the hatred of the other in contexts in which previous relations of power become challenged and inverted and grapple with how it may be possible to sustain a relational ethics in such instances. Straker’s reading of the tension between the real and the symbolic in Night Cries and what this signals for modes of expression, multiplicity of meaning, and potentialities in relating is also highlighted.     

Perceptions of Academic Dishonesty in a South African University: A Q-Methodology Approach

The prevalence of academic dishonesty is a matter of considerable concern for institutions of higher education everywhere. We explored students’ perceptions of academic dishonesty using Q methodology, which provides insights that are different from those obtained through surveys or interviews. South African students ranked 48 statements, giving reasons why students cheat, on an 11-column grid, anchored by strongly agree and strongly disagree. Q factor analysis was used to identify groups of individuals who share the same perspective. The three perspectives that emerged viewed academic dishonesty as (a) moral transgressions, (b) pressure transgressions, or (c) confused transgressions. These suggest different approaches to addressing the issue.     

Sibling Hostility and Externalized Symptoms of Psychological Distress

Sibling verbal and physical abuse has been underrepresented in childhood maltreatment research as a potential contributor to lifetime aggression. This study investigated associations between sibling hostility (physical abuse, threats of violence, heated verbal conflict) and conduct disorder symptoms, trait hostility, and lifetime aggression after control for variance attributable to physical and sexual abuse, exposure to domestic violence, and peer bullying. Over 20% of the respondents from this university sample (N = 1,331) recalled high levels of sibling hostility from the ages of 5 to 16. The frequency of these acts served as a significant predictor in regression models for all of the criterion measures among the women. Relationships between sibling hostility and these externalized symptom indicators were more limited among the men. Acts of sibling hostility as infrequent as once a year were associated in the total sample with higher conduct disorder symptoms, reactive aggression, lifetime acts of physical aggression, and Buss-Perry Aggression Questionnaire subscale scores. These findings suggested that even low frequencies of sibling abuse may have a deleterious impact on temper management. Sibling hostility warrants systematic attention in the childhood maltreatment literature.     

Spirituality and aging: How worship communities of older adults sustain their faith in the absence of traditional ordained leadership

ABSTRACT

This article considers how older Christians (aged over 70) exercise worship in an environment of shared ministry. Specifically, the Local Shared Ministry Units (LSMU) model of worship within the Auckland Diocese of the Anglican Church in Aotearoa/New Zealand and Polynesia (Auckland Diocese). A collective case study approach was used, and individual members of four LSMUs were interviewed with the resulting comments treated as a collective case study. The findings indicate these older adults are still seeking faith formation, do not regard themselves as fully formed spiritually, and use personal prayer in particular to enhance and nourish their faith growth.     

Differentiating corporal punishment from physical abuse in the prediction of lifetime aggression

Corporal punishment and parental physical abuse often co‐occur during upbringing, making it difficult to differentiate their selective impacts on psychological functioning. Associations between corporal punishment and a number of lifetime aggression indicators were examined in this study after efforts to control the potential influence of various forms of co‐occurring maltreatment (parental physical abuse, childhood sexual abuse, sibling abuse, peer bullying, and observed parental violence). College students (N = 1,136) provided retrospective self‐reports regarding their history of aggression and levels of exposure to childhood corporal punishment and maltreatment experiences. Analyses focused on three hypotheses: 1) The odds of experiencing childhood physical abuse would be higher among respondents reporting frequent corporal punishment during upbringing; 2) Corporal punishment scores would predict the criterion aggression indices after control of variance associated with childhood maltreatment; 3) Aggression scores would be higher among respondents classified in the moderate and elevated corporal punishment risk groups. Strong support was found for the first hypothesis since the odds of childhood physical abuse recollections were higher (OR = 65.3) among respondents who experienced frequent (>60 total disciplinary acts) corporal punishment during upbringing. Partial support was found for the second and third hypotheses. Dimensional and categorical corporal punishment scores were associated significantly with half of the criterion measures. These findings support efforts to dissuade reliance on corporal punishment to manage child behavior.

     

Factors Influencing Clinical Correlates of Chronic Traumatic Encephalopathy (CTE): a Review

Chronic traumatic encephalopathy (CTE) is a neuropathologically defined disease reportedly linked to a history of repetitive brain trauma. As such, retired collision sport athletes are likely at heightened risk for developing CTE. Researchers have described distinct pathological features of CTE as well a wide range of clinical symptom presentations, recently termed traumatic encephalopathy syndrome (TES). These clinical symptoms are highly variable, non-specific to individuals described as having CTE pathology in case reports, and are often associated with many other factors. This review describes the cognitive, emotional, and behavioral changes associated with 1) developmental and demographic factors, 2) neurodevelopmental disorders, 3) normal aging, 4) adjusting to retirement, 5) drug and alcohol abuse, 6) surgeries and anesthesia, and 7) sleep difficulties, as well as the relationship between these factors and risk for developing dementia-related neurodegenerative disease. We discuss why some professional athletes may be particularly susceptible to many of these effects and the importance of choosing appropriate controls groups when designing research protocols. We conclude that these factors should be considered as modifiers predominantly of the clinical outcomes associated with repetitive brain trauma within a broader biopsychosocial framework when interpreting and attributing symptom development, though also note potential effects on neuropathological outcomes. Importantly, this could have significant treatment implications for improving quality of life.