The ability to extract patterns from sensory input across time and space is thought to underlie the development and acquisition of language and literacy skills, particularly the subdomains marked by the learning of probabilistic knowledge. Thus, impairments in procedural learning are hypothesized to underlie neurodevelopmental disorders, such as dyslexia and developmental language disorder. In the present meta‐analysis, comprising 2396 participants from 39 independent studies, the continuous relationship between language, literacy, and procedural learning on the Serial Reaction Time task (SRTT) was (...) assessed across children and adults with typical development (TD), dyslexia, and Developmental Language Disorder (DLD). Despite a significant, but very small, relationship between procedural learning and overall language and literacy measures, this pattern was not observed at the group‐level when examining TD, dyslexic, and DLD groups separately. Based on the procedural/declarative model, a positive relationship was expected between procedural learning and language and literacy measures for the typically developing group; however, no such relationship was observed. This was also the case for the disordered groups (ps >.05). Also counter to expectations, the magnitude of the relationship between procedural learning and grammar and phonology did not differ between TD and DLD (ps >.05), nor between the TD and dyslexic group on reading, spelling, and phonology (ps >.05). While lending little support to the procedural/declarative model, we consider that these results may be the consequence of poor psychometric properties of the SRTT as a measure of procedural learning. (shrink)

Hierarchical Bayesian models provide an account of Bayesian inference in a hierarchically structured hypothesis space. Scientific theories are plausibly regarded as organized into hierarchies in many cases, with higher levels sometimes called ‘paradigms’ and lower levels encoding more specific or concrete hypotheses. Therefore, HBMs provide a useful model for scientific theory change, showing how higher-level theory change may be driven by the impact of evidence on lower levels. HBMs capture features described in the Kuhnian tradition, particularly the idea that higher-level (...) theories guide learning at lower levels. In addition, they help resolve certain issues for Bayesians, such as scientific preference for simplicity and the problem of new theories. (shrink)

This paper introduces the model of Utilitarian Principlism as a framework for crisis healthcare ethics. In modern Western medicine, during non-crisis times, principlism provides the four guiding principles in biomedical ethics—autonomy, nonmaleficence, beneficence, and justice; autonomy typically emerges as the decisive principle. The physician–patient relationship is a deontological construct in which the physician’s primary duty is to the individual patient and the individual patient is paramount. For this reason, we term the non-crisis ethical framework that guides modern medicine Deontological Principlism. (...) During times of crisis, resources become scarce, standards of care become dynamic, and public health ethics move to the forefront. Healthcare providers are forced to work in non-ideal conditions, and interactions with individual patients must be considered in the context of the crisis. The COVID-19 pandemic has forced healthcare to shift to a more utilitarian framework with a greater focus on promoting the health of communities and populations. This paper puts forth the notion of Utilitarian Principlism as a framework for crisis healthcare ethics. We discuss each of the four principles from a utilitarian perspective and use clinical vignettes, based on real cases from the COVID-19 pandemic, for illustrative purposes. We explore how Deontological Principlism and Utilitarian Principlism are two ends of a spectrum, and the implications to healthcare as we emerge from the pandemic. (shrink)

This paper analyses the activities of five organizations shaping the debate over the global governance of genome editing in order to assess current approaches to public engagement (PE). We compare the recommendations of each group with its own practices. All recommend broad engagement with the general public, but their practices vary from expert-driven models dominated by scientists, experts, and civil society groups to citizen deliberation-driven models that feature bidirectional consultation with local citizens, as well as hybrid models that combine elements (...) of both approaches. Only one group practices PE that seeks community perspectives to advance equity. In most cases, PE does little more than record already well-known views held by the most vocal groups, and thus is unlikely to produce more just or equitable processes or policy outcomes. Our exploration of the strengths, weaknesses, and possibilities of current forms of PE suggests a need to rethink both “public” and “engagement.”. (shrink)

The three important target articles make a strong case for regarding racism as a public health crisis. Each calls for advocacy by the bi...

Self-criticism is a trait associated with increased psychopathology, but self-criticism is also a personality state reflecting an action that people do in moments of time. In the current study, we explored factors associated with heightened self-criticism in daily life. Participants (N = 197) received five random prompts per day for one week on their mobile phones, where they reported their current affect (negative and positive affect), willpower self-efficacy, distress intolerance, degree of support and criticism from others, current context (location, activity, (...) hunger, tiredness) and momentary self-criticism. We first demonstrated that self-criticism varies over time and across contexts, and is associated with heightened trait self-criticism. Then, using multilevel modelling, we explored the contextual factors associated with greater self-criticism. We found that self-criticism was higher when people were at home, and more tired. We also found higher self-criticism to be associated with greater negative and lower positive affect, greater distress intolerance, lower willpower and greater perceived criticism from others. In addition, self-criticism predicted subsequent distress intolerance, willpower and positive affect in lagged analyses. This study provides evidence that both environmental and psychological factors are associated with the dynamics of self-critical thoughts. (shrink)

This article is an attempt to develop a measure of ethical sensitivity to racial and gender intolerance that occurs in schools. Acts of intolerance that indicate ethically insensitive behaviors in American schools were identified and tied to existing professional ethical codes developed by school-based professional organizations. The Racial Ethical Sensitivity Test consists of 5 scenarios that portray acts of racial intolerance and ethical insensitivity. Participants viewed 2 videotaped scenarios and then responded to a semistructured interview protocol adapted from Bebeau and (...) Rest. After a 2-week interval, this procedure was repeated. Stability of the REST across time was determined by using the overall test-retest coefficient. Internal as well as interrater consistency was also calculated for each scenario. Overall findings indicate promise for the REST as a reliable measure to assess racial and ethnic sensitivity. (shrink)

In much the same way that genomic technologies are changing the complexion of biomedical research, the issues they generate are changing the agenda of IRBs and research ethics. Many of the biggest challenges facing traditional research ethics today — privacy and confidentiality of research subjects; ownership, control, and sharing of research data; return of results and incidental findings; the relevance of group interests and harms; the scope of informed consent; and the relative importance of the therapeutic misconception — have become (...) important policy issues over the last 20 years because of the ways they have been magnified by genomic research efforts. Research that examines the ethical, legal, and social implications of human genomics research has become a burgeoning international field of scholarship over the last 20 years, thanks in part to its support first by the genome research funding bodies in the U.S. and then by national science agencies in other countries. (shrink)

Pylyshyn defends a distinction between early visual perception and cognitive processing. But exactly where should the line between vision and cognition be drawn? Our research on object identification suggests that the construction of an object's visual description is isolated from contextually derived expectations. Moreover, the matching of constructed descriptions to stored descriptions appears to be similarly isolated.

BackgroundChildhood adversity is linked to adverse health in adulthood. One posited mechanistic pathway is through physiological responses to acute stress. Childhood adversity has been previously related to both exaggerated and blunted physiological responses to acute stress, however, less is known about the psychological mechanisms which may contribute to patterns of physiological reactivity linked to childhood adversity.ObjectiveIn the current work, we investigated the role of challenge and threat stress appraisals in explaining relationships between childhood adversity and cortisol reactivity in response to (...) an acute stressor.MethodsUndergraduate students completed an online survey that included general demographic information and the Risky Families Questionnaire 24 h before a scheduled lab visit. In the lab, a research assistant collected a baseline salivary cortisol sample. Following the baseline period, participants were read instructions for the Trier Social Stress Test, a validated psychological lab stressor. Next, they completed a challenge vs. threat task appraisal questionnaire and completed the speech and math portion of the TSST. Twenty minutes following the start of the TSST, a second salivary sample was collected to measure changes in salivary cortisol following the TSST.ResultsLinear regression analyses adjusted for age, sex, childhood socioeconomic status, and baseline cortisol levels, showed childhood adversity associated with changes in cortisol levels [B = –0.29 t = –2.35, p = 0.02, R2=0.07]. Linear regression analyses controlling for age, sex, and childhood SES showed childhood adversity associated with both challenge [B = –0.52 t = –5.04, p < 0.001, R2=0.24] and threat [B = 0.55 t = 5.40, p < 0.001, R2=0.27] appraisals. Significant indirect effects of childhood trauma on cortisol reactivity were observed through challenge appraisals [B = –0.01 ], and threat appraisals [B = –0.01 ].ConclusionChildhood adversity may contribute to blunted cortisol reactivity, a pattern of response which is linked to obesity, addiction, and other behavior-related diseases. Our findings suggest that this relationship is in part a product of stress appraisals. (shrink)

DBS Think Tank IX was held on August 25–27, 2021 in Orlando FL with US based participants largely in person and overseas participants joining by video conferencing technology. The DBS Think Tank was founded in 2012 and provides an open platform where clinicians, engineers and researchers can freely discuss current and emerging deep brain stimulation technologies as well as the logistical and ethical issues facing the field. The consensus among the DBS Think Tank IX speakers was that DBS expanded in (...) its scope and has been applied to multiple brain disorders in an effort to modulate neural circuitry. After collectively sharing our experiences, it was estimated that globally more than 230,000 DBS devices have been implanted for neurological and neuropsychiatric disorders. As such, this year’s meeting was focused on advances in the following areas: neuromodulation in Europe, Asia and Australia; cutting-edge technologies, neuroethics, interventional psychiatry, adaptive DBS, neuromodulation for pain, network neuromodulation for epilepsy and neuromodulation for traumatic brain injury. (shrink)

This paper applies Plato's cave allegory to Enron's success and downfall. Plato's famous tale of cave dwellers illustrates the different levels of truth and understanding. These levels include images, the sources of images, and the ultimate reality behind both. The paper first describes these levels of perception as they apply to Plato's cave dwellers and then provides a brief history of the rise of Enron. Then we apply Plato's levels of understanding to Enron, showing how the company created its image (...) and presented information to support that image, and how the public eventually emerged from the cave to realize the truth about Enron's actual accounting practices and financial state, which led to the corporation's downfall. We find Plato's allegory both useful in analyzing the relationship between Enron and the public and instructive about the power and moral responsibility of Enron's executives. (shrink)

This paper applies Plato’s cave allegory to Enron’s success and downfall. Plato’s famous tale of cave dwellers illustrates the different levels of truth and understanding. These levels include images, the sources of images, and the ultimate reality behind both. The paper first describes these levels of perception as they apply to Plato’s cave dwellers and then provides a brief history of the rise of Enron. Then we apply Plato’s levels of understanding to Enron, showing how the company created its image (...) and presented information to support that image, and how the public eventually emerged from the cave to realize the truth about Enron’s actual accounting practices and financial state, which led to the corporation’s downfall. We find Plato’s allegory both useful in analyzing the relationship between Enron and the public and instructive about the power and moral responsibility of Enron’s executives. (shrink)

The number of children with chronic critical illness (CCI) is a growing population in the United States. A defining characteristic of this population is a prolonged hospital stay. Our study assessed the proportion of pediatric patients with chronic critical illness in U.S. hospitals at a specific point in time, and identified a subset of children whose hospital stay lasted for months to years. The potential harms of a prolonged hospitalization for children with CCI, which include over treatment, infection, disruption of (...) family life, and the intensive utilization of resources—combined with the moral distress experienced by the clinicians who care for the children, suggest the need for ethical analysis of this growing issue to identify actions that could be taken at the clinical and health systems levels to reduce the harms associated with prolonged hospital stay.In this article we present three real cases from our study that involved a very long hospital stay. We applied a framework developed by Mackenzie, Rogers, and Dodds to analyze inherent, situational, and pathogenic vulnerabilities to examine the ways that interventions intended to remedy one source of harm for the children in our cohort inadvertently created other harms. We examined the complex ways that children with protracted hospitalization are vulnerable to the choices made by their family and clinicians, as well as by healthcare systems and communities. Finally, we used this analysis to summarize actions and ethical responses to this growing patient population. Such an understanding is essential to making clinical and ethical decisions that arise for children who are at risk for a very long stay in the hospital. (shrink)

Polls suggest up to twenty percent of Americans describe their beliefs as 'libertarian', but libertarians are often derided as heartless Social Darwinists or naïve idealists. This illuminating handbook brings together scholars from a range of fields and political perspectives to consider how classical liberal principles can help us understand and potentially address a variety of pressing social problems including immigration, climate change, the growth of the prison population, and a host of others. Anyone interested in political theory or practical law (...) and politics will find this book an essential resource for understanding this major strand of American politics. (shrink)

This is the first article in a two-part series describing subject and family perspectives from the central thalamic deep brain stimulation for the treatment of traumatic brain injury using the Medtronic PC + S first-in-human invasive neurological device trial to achieve cognitive restoration in moderate to severe traumatic brain injury, with subjects who were deemed capable of providing voluntary informed consent. In this article, we report on interviews conducted prior to surgery wherein we asked participants about their experiences recovering from (...) brain injury and their perspectives on study enrollment and participation. We asked how risks and benefits were weighed, what their expectations and fears were, and how decisions were reached about trial participation. We found that informed consent and enrollment decisions are fraught. Subjects and families were often split, with subjects more focused on putative benefits and families concerned about incremental risk. Both subjects and families viewed brain injury as disruptive to personal identity and relationships. As decisions were made about study enrollment, families struggled with recognizing the re-emergent agency of subjects and ceding decision-making authority to subjects who had previously been dependent upon them for protection and guidance. Subjects and family members reported a hope for the relief of cognitive disabilities, improved quality of life, normalization of interpersonal interactions, and a return to work or school as reasons for study participation, along with altruism and a desire to advance science. Despite these aspirations, both subjects and families appreciated the risks of the intervention and did not suffer from a therapeutic misconception. A second essay to be published in the next issue of Cambridge Quarterly of Healthcare Ethics—Clinical Neuroethics will describe interviews conducted after surgery, the effects of cognitive restoration for subjects, families, and challenges presented to the social structures they will call upon to support them through recovery. This subsequent article will be available online prior to its formal publication in October 2023. (shrink)

The Covid‐19 pandemic has concentrated bioethics attention on the “lifeboat ethics” of rationing and fair allocation of scarce medical resources, such as testing, intensive care unit beds, and ventilators. This focus drives ethics resources away from persistent and systemic problems—in particular, the structural injustices that give rise to health disparities affecting disadvantaged communities of color. Bioethics, long allied with academic medicine and highly attentive to individual decision‐making, has largely neglected its responsibility to address these difficult “upstream” issues. It is time (...) to broaden our teaching, research, and practice to match the breadth of the field in order to help address these significant societal inequities and unmet health needs. (shrink)

This is the second paper in a two-part series describing subject and family perspectives from the CENTURY-S (CENtral Thalamic Deep Brain Stimulation for the Treatment of Traumatic Brain InjURY-Safety) first-in-human invasive neurological device trial to achieve cognitive restoration in moderate to severe traumatic brain injury (msTBI). To participate, subjects were independently assessed to formally establish decision-making capacity to provide voluntary informed consent. Here, we report on post-operative interviews conducted after a successful trial of thalamic stimulation. All five msTBI subjects met (...) a pre-selected primary endpoint of at least a 10% improvement in completion time on Trail-Making-Test Part B, a marker of executive function. We describe narrative responses of subjects and family members, refracted against that success. Interviews following surgery and the stimulation trial revealed the challenge of adaptation to improvements in cognitive function and emotional regulation as well as altered (and restored) relationships and family dynamics. These improvements exposed barriers to social reintegration made relevant by recoveries once thought inconceivable. The study’s success sparked concerns about post-trial access to implanted devices, financing of device maintenance, battery replacement, and on-going care. Most subjects and families identified the need for supportive counseling to adapt to the new trajectory of their lives. (shrink)

What are the effects of word-by-word predictability on sentence processing times during the natural reading of a text? Although information complexity metrics such as surprisal and entropy reduction have been useful in addressing this question, these metrics tend to be estimated using computational language models, which require some degree of commitment to a particular theory of language processing. Taking a different approach, this study implemented a large-scale cumulative cloze task to collect word-by-word predictability data for 40 passages and compute surprisal (...) and entropy reduction values in a theory-neutral manner. A separate group of participants read the same texts while their eye movements were recorded. Results showed that increases in surprisal and entropy reduction were both associated with increases in reading times. Furthermore, these effects did not depend on the global difficulty of the text. The findings suggest that surprisal and entropy reduction independently contribute to variation in reading times, as these metrics seem to capture different aspects of lexical predictability. (shrink)

The authors led the development of a framework for ethical decision-making for an Academic Health Sciences Centre. They understood the existing mission, vision, and values statement (MVVs) of the centre as a foundational assertion that embodies an ethical commitment of the institution. Reflecting the Patient and Family Centred Model of Care the institution is living, the MVVs is a suitable base on which to construct an ethics framework. The resultant framework consists of a set of questions for each of the (...) MVVs. Users of the framework are expected to identify two or more possible decisions to address the issue at hand and then, by applying the provided sequence of questions to each, examine these options and determine the overall ethically preferable decision. The construction of such a framework requires the creative involvement of the institution’s staff. Thus the development of the framework can represent a training process in ethical decision-making as well as advance the ethical atmosphere of the institution. This novel approach has the advantage of placing the MVVs on active duty, at the centre of ethical decision-making, and lifts it from its otherwise relative obscurity in most institutions. (shrink)

This article presents the Pilgrimage Model as a template for educators wishing to lead students on site-specific studies of engaged learning. During the 2015–2016 academic year, a group of Georgeto...

Background: Neurotypical young adults show task-based modulation and stability of their eye movements across tasks. This study aimed to determine whether persons with aphasia (PWA) modulate their eye movements and show stability across tasks similarly to control participants. Methods: Forty-eight PWA and age-matched control participants completed four eye-tracking tasks: scene search, scene memorization, text-reading, and pseudo-reading. Results: Main effects of task emerged for mean fixation duration, saccade amplitude, and standard deviations of each, demonstrating task-based modulation of eye movements. Group by (...) task interactions indicated that PWA produced shorter fixations relative to controls. This effect was most pronounced for scene memorization and for individuals who recently suffered a stroke. PWA produced longer fixations, shorter saccades, and less variable eye movements in reading tasks compared to controls. Three-way interactions of group, aphasia subtype, and task also emerged. Text-reading and scene memorization were particularly effective at distinguishing aphasia subtype. Persons with anomic aphasia showed a reduction in reading saccade amplitudes relative to their respective control group and other PWA. Persons with conduction/Wernicke’s aphasia produced shorter scene memorization fixations relative to controls or PWA of other subtypes, suggesting a memorization specific effect. Positive correlations across most tasks emerged for fixation duration and did not significantly differ between controls and PWA. Conclusions: PWA generally produced shorter fixations and smaller saccades relative to controls particularly in scene memorization and text-reading respectively. The effect was most pronounced recently after a stroke. Selectively in reading tasks, PWA produced longer fixations and shorter saccades relative to controls, consistent with reading difficulty. PWA showed task-based modulation of eye movements, though the pattern of results was somewhat abnormal relative to controls. All subtypes of PWA also demonstrated task-based modulation of eye movements. However, persons with anomic aphasia showed reduced modulation of saccade amplitude and smaller reading saccades, possibly to improve reading comprehension. Controls and PWA generally produced stabile fixation durations across tasks and did not differ in their relationship across tasks. Overall, these results suggest there is potential to differentiate among PWA with varying subtypes and from controls using eye movement measures of task-based modulation, especially reading and scene memorization tasks. (shrink)

Tool making has been proposed as a key force in driving the complexity of human material culture. The ontogeny of tool‐related behaviors hinges on social, representational, and creative factors. In this study, we test the associations between these factors in development across two different cultures. Results of Study 1 with 5‐to‐6‐year‐old Turkish children in dyadic or individual settings show that tool making is facilitated by social interaction, hierarchical representation, and creative abilities. Results of a second explorative study comparing the Turkish (...) sample with a sample of 5‐to‐6‐year‐old children in New Zealand suggest that tool innovation might be affected by culture, and that the role of cognitive and creative factors diminishes through social interaction in tool making. (shrink)

Australia is currently experiencing a prolonged period of water scarcity that is challenging a diverse range of water-dependent activities ranging from household gardening to horticultural production to the viability of riverine ecosystems. The political and ecological importance of water in Australia is not, however, only a recent phenomenon. For the majority of Australia’s settled history, water politics, economics, culture and engineering have reflected and embodied a dynamic relationship between Australian hydrology and Australian society. This essay examines that relationship by first (...) reviewing the work of the Australian historical geographer, Emeritus Professor J. M. Powell. For 40 years Powell has been writing about the process of natural resource appraisal and management in Australia and he has been Australia’s leading authority on the role of water in that process for most of that time. The essay then argues for an extension of Powell’s work by applying the insights provided by the scholars Karl Wittfogel, Donald Worster and Eric Swyngedouw. Their work, it is argued, suggests the possibility of a more nuanced understanding of water in Australia than that currently offered by the majority of the Australian literature, and ultimately provides some tools for thinking ourselves out of the current water crisis. (shrink)

In this paper, I argue that Michelangelo Antonioni, in his first full-length colour feature, Red Desert (Il Deserto Rosso, 1964), uses cinematic language to explore what contemporary psychoanalyst Julia Kristeva, decades later, has called the crisis of primary narcissism, one of the 'new maladies' afflicting the modern subject, that she describes in Tales of Love (1983). In examining the struggles of subject formation, Antonioni poetically describes the devastating breakdown of both subjectivity and intersubjectivity in conditions of late modernity that Kristeva (...) details through her own psychoanalytic account. Into Antonioni's infamous statement 'Eros is sick', we can read Kristeva's suggestion that Narcissus, our capacity for love and loss, separateness and idealization—the very foundation for our being with others—is in a state of serious affliction. Through the trials of his main protagonist, Giuliana, Antonioni reveals that the acquisition of a distinct, differentiated identity, one that allows the subject to establish and maintain meaningful relationships and ethical bonds, without the risk of psychic disintegration, has become highly problematic—reaching the level of a collective crisis, rather than remaining an issue of individual illness. For Antonioni, psychic survival in the modern world is not merely a question of seamless integration, but a form of (dis)adaptation: the recognition of severance and of separation, both from nature and our own nature, that allows one to affirm her environment and act as an responsive agent in the world, without being overwhelmed or engulfed by otherness, or alterity. In Kristeva's terms, this involves the capacity to bear and, even, to creatively elaborate, the necessity of loss and separation from the primal (m)other—a painful process to which Giuliana eventually submits. (shrink)

Bioethics needs an expanded moral vision. It is now time for bioethics to take full account of the problems of health disparities and structural injustice that are made newly urgent by the COVID-19 pandemic and the effects of climate change. Nancy M. P. King, Gail E. Henderson, and Larry R. Churchill make the case for a more social understanding and application of justice, a deeper humility in assessing expertise in bioethics consulting, a broader and more relevant research agenda, and (...) greater appreciation of the profound health implications of global warming. (shrink)