A virtual reality scenario for all seasons: the virtual classroom

Treatment and rehabilitation of the cognitive, psychological, and motor sequelae of central nervous system dysfunction often relies on assessment instruments to inform diagnosis and to track changes in clinical status. Typically, these assessments employ paper-and-pencil psychometrics, hands-on analog/computer tests, and rating of behavior within the context of real-world functional environments. Virtual reality offers the option to produce and distribute identical "standard" simulation environments in which performance can be measured and rehabilitated. Within such digital scenarios, normative data can be accumulated for performance comparisons needed for assessment/diagnosis and for treatment/rehabilitation purposes. In this manner, reusable archetypic virtual environments constructed for one purpose can also be applied for applications addressing other clinical targets. This article will provide a review of such a retooling approach using a virtual classroom simulation that was originally developed as a controlled stimulus environment in which attention processes could be systematically assessed in children with attention-deficit/hyperactivity disorder. This system is now being applied to other clinical targets including the development of tests that address other cognitive functions, eye movement under distraction conditions, social anxiety disorder, and the creation of an earthquake safety training application for children with developmental and learning disabilities.     

A controlled clinical comparison of attention performance in children with ADHD in a virtual reality classroom compared to standard neuropsychological methods.

In this initial pilot study, a controlled clinical comparison was made of attention perforance in children with attention deficit-hyperactivity disorder (ADHD) in a virtual reality (VR) classroom. Ten boys diagnosed with ADHD and ten normal control boys participated in the study. Groups did not significantly differ in mean age, grade level, ethnicity, or handedness. No participants reported simulator sickness following VR exposure. Children with ADHD exhibited more omission errors, commission errors, and overall body movement than normal control children in the VR classroom. Children with ADHD were more impacted by distraction in the VR classroom. VR classroom measures were correlated with traditional ADHD assessment tools and the flatscreen CPT. Of note, the small sample size incorporated in each group and higher WISC-III scores of normal controls might have some bearing on the overall interpretation of results. These data suggested that the Virtual Classroom had good potential for controlled performance assessment within an ecologically valid environment and appeared to parse out significant effects due to the presence of distraction stimuli.     

Choosing and refusing: doxastic voluntarism and folk psychology

A standard view in contemporary philosophy is that belief is involuntary, either as a matter of conceptual necessity or as a contingent fact of human psychology. We present seven experiments on patterns in ordinary folk-psychological judgments about belief. The results provide strong evidence that voluntary belief is conceptually possible and, granted minimal charitable assumptions about folk-psychological competence, provide some evidence that voluntary belief is psychologically possible. We also consider two hypotheses in an attempt to understand why many philosophers have been tempted to view belief as involuntary: that belief is a prototype concept and that belief is a dual character concept. Altogether, our findings contribute to longstanding philosophical debates about the relationship between the will and the intellect, while also advancing scientific understanding of important social judgments.     

Virtual reality goes to war: a brief review of the future of military behavioral healthcare

Numerous reports indicate that the incidence of posttraumatic stress disorder (PTSD) in returning OEF/OIF military personnel is creating a significant healthcare challenge. These findings have served to motivate research on how to better develop and disseminate evidence-based treatments for PTSD. Virtual Reality delivered exposure therapy for PTSD has been previously used with reports of positive outcomes. This article details how virtual reality applications are being designed and implemented across various points in the military deployment cycle to prevent, identify and treat combat-related PTSD in OIF/OEF Service Members and Veterans. The summarized projects in these areas have been developed at the University of Southern California Institute for Creative Technologies, a U.S. Army University Affiliated Research Center, and this paper will detail efforts to use virtual reality to deliver exposure therapy, assess PTSD and cognitive function and provide stress resilience training prior to deployment.     

Intuition Fail: Philosophical Activity and the Limits of Expertise

Experimental philosophers have empirically challenged the connection between intuition and philosophical expertise. This paper reviews these challenges alongside other research findings in cognitive science on expert performance and argues for three claims. First, evidence taken to challenge philosophical expertise may also be explained by the well‐researched failures and limitations of genuine expertise. Second, studying the failures and limitations of experts across many fields provides a promising research program upon which to base a new model of philosophical expertise. Third, a model of philosophical expertise based on the limitations of genuine experts may suggest a series of constraints on the reliability of professional philosophical intuition.

Even when the experts all agree, they may well be mistaken. — Bertrand Russell, On the Value of Scepticism

     

Error possibility,contextualism, and bias

Synthese - A central theoretical motivation for epistemic contextualism is that it can explain something that invariantism cannot. Specifically, contextualism claims that judgments about...     

Function and feeling machines: a defense of the philosophical conception of subjective experience

Philosophers of mind typically group experiential states together and distinguish these from intentional states on the basis of their purportedly obvious phenomenal character. Sytsma and Machery (Phil Stud 151(2): 299–327, 2010) challenge this dichotomy by presenting evidence that non-philosophers do not classify subjective experiences relative to a state’s phenomenological character, but rather by its valence. However we argue that S&M’s results do not speak to folk beliefs about the nature of experiential states, but rather to folk beliefs about the entity to which those experiential states are attributed. In two experiments, we demonstrate that ordinary attributions of subjective experiences (of smell and felt emotions) to a simple robot are not sensitive to valence, but instead respond to functional assumptions about the entity to which the states are (or are not) attributed.     

Ability,Responsibility, and Global Justice

Many have argued that we have a moral obligation to assist others in need, but given the scope of global suffering, how far does this obligation extend? According to one traditional philosophical view, the obligation to help others is limited by our ability to help them, or by the principle that “ought implies can.” This view is primarily defended on the grounds that it is a core principle of commonsense moral psychology. This paper reviews findings from experimental philosophy in cognitive science demonstrating that “ought implies can” is rejected by moral psychology. Researchers find that moral obligations are ascribed to agents who cannot fulfill them, suggesting that moral requirements do sometimes extend beyond what we are able to do. This research furthers our understanding of moral obligation, identifies an important need for further cross-cultural work in moral psychology, and demonstrates a way in which scientific experimentation can be applied to improve upon the conceptual analysis of important philosophical concepts in normative ethics.

     

Exasperations as Blessings: Meaning-Making and the Caregiving Experience

This study examines the process of how caregivers can shape the frustrations and exasperations of caring for a family member with Alzheimer's disease into blessings. Heidegger's hermeneutic phenomenological perspective is used to interpret a caregiver's narrative, in which she describes caring for her husband with Alzheimer's disease. The interpretive analysis focuses specifically on how the caregiver finds meaning in the caregiving process. The analysis reveals that the caregiver constructs meaning by emphasizing particular aspects of her experiences, including cherished memories, creating a happy life by living life intensely, and counting her blessings. While some caregivers naturally find such meaning, this study suggests that reading the narratives of others as well as writing about one's own thoughts and feelings can facilitate this meaning-making process. Structured written emotional expression, in particular, fosters meaning-making, diminishes psychological distress, improves immune function, and promotes health and well-being.     

Belief through Thick and Thin

We distinguish between two categories of belief—thin belief and thick belief—and provide evidence that they approximate genuinely distinct categories within folk psychology. We use the distinction to make informative predictions about how laypeople view the relationship between knowledge and belief. More specifically, we show that if the distinction is genuine, then we can make sense of otherwise extremely puzzling recent experimental findings on the entailment thesis (i.e. the widely held philosophical thesis that knowledge entails belief). We also suggest that the distinction can be applied to debates in the philosophy of mind and metaethics.