We examine change across U.S. cohorts born between 1920 and 2000 in their probability of having had sex with same-sex partners in the last year and since age 18. Using data from the 1988–2018 General Social Surveys, we explore how trends differ by gender, race, and class background. We find steep increases across birth cohorts in the proportion of women who have had sex with both men and women since age 18, whereas increases for men are less steep. We suggest (...) that the trends reflect an increasingly accepting social climate, and that women’s steeper trend is rooted in a long-term asymmetry in gender change, in which nonconformity to gender norms is more acceptable for women than men. We also find evidence that, among men, the increase in having had sex with both men and women was steeper for black than for white men, and for men of lower socioeconomic status; we speculate that the rise of mass incarceration among less privileged men may have influenced this trend. (shrink)

That holobionts are units of selection squares poorly with the observation that microbes are often recruited from the environment, not passed down vertically from parent to offspring, as required for collective reproduction. The taxonomic makeup of a holobiont’s microbial community may vary over its lifetime and differ from that of conspecifics. In contrast, biochemical functions of the microbiota and contributions to host biology are more conserved, with taxonomically variable but functionally similar microbes recurring across generations and hosts. To save what (...) is of interest in holobiont thinking, we propose casting metabolic and developmental interaction patterns, rather than the taxa responsible for them, as units of selection. Such units need not directly reproduce or form parent-offspring lineages: their prior existence has created the conditions under which taxa with the genes necessary to carry out their steps have evolved in large numbers. These taxa or genes will reconstruct the original interaction patterns when favorable conditions occur. Interaction patterns will vary in ways that affect the likelihood of and circumstances under which such reconstruction occurs. Thus, they vary in fitness, and evolution by natural selection will occur at this level. It is on the persistence, reconstruction, and spread of such interaction patterns that students of holobiosis should concentrate, we suggest. This model also addresses other multi-species collectively beneficial interactions, such as biofilms or biogeochemical cycles maintaining all life. (shrink)

Clade selection is unpopular with philosophers who otherwise accept multilevel selection theory. Clades cannot reproduce, and reproduction is widely thought necessary for evolution by natural selection, especially of complex adaptations. Using microbial evolutionary processes as heuristics, I argue contrariwise, that (1) clade growth (proliferation of contained species) substitutes for clade reproduction in the evolution of complex adaptation, (2) clade-level properties favoring persistence – species richness, dispersal, divergence, and possibly intraclade cooperation – are not collapsible into species-level traits, (3) such properties (...) can be maintained by selection on clades, and (4) clade selection extends the explanatory power of the theory of evolution. (shrink)

As clinical trials end, little is understood about how participants exiting from clinical trials approach decisions related to the removal or post-trial use of investigational brain implants, such as deep brain stimulation (DBS) devices. This empirical bioethics study examines how research participants experience the process of exit from research at the end of clinical trials of implanted neural devices. Using a modified grounded theory study design, we conducted semi-structured, in-depth interviews with 16 former research participants from clinical trials of DBS (...) and responsive neurostimulation (RNS). Open-ended questions elicited motivations for joining the trial, understanding of study procedures at the time of initial informed consent, the process of exiting from research, and decisions about device removal or post-trial device use. Thematic analysis identified categories related to: limited preparedness for the end of research participation, straightforwardness of decisions to explant or keep the device, reconciling with the end of research participation, reconciling post-trial expectations, and achieving a sense of closure after exit from research. A preliminary theoretical model describes contextual factors influencing the process and experience of exit from research. Experiences of clinical trial participants should guide research practices to enhance the ethical design and conduct of clinical trials in DBS and other brain devices. (shrink)

Studies concerning the relationship between religion and mental health have provided substantial evidence for the existence of a positive relationship. Nevertheless, it remains largely unclear which aspects of both religion and mental health take part in this relationship. The present study uses multiple measures of religion and of mental health to obtain a more refined view of this relationship. The results show the importance of distinguishing between if a person believes and how a person believes. Religious persons who have a (...) symbolic attitude towards religion scored higher on positive aspects of mental health. No significant results were found for negative mental health. (shrink)

Lateral gene transfer, the exchange of genetic information between lineages, not only makes construction of a universal Tree of Life difficult to achieve, but calls into question the utility and meaning of any result. Here I review the science of prokaryotic LGT, the philosophy of the TOL as it figured in Darwin’s formulation of the Theory of Evolution, and the politics of the current debate within the discipline over how threats to the TOL should be represented outside it. We could (...) encourage a more realistic and supportive public understanding of evolution by admitting that what we believe in is not a unified meta-theory but a versatile and well-stocked explanatory toolkit. (shrink)

Koonin, in an article in this issue, claims that CRISPR–Cas systems are mechanisms for the inheritance of acquired adaptive characteristics, and that the operation of such systems comprises a “Lamarckian mode of evolution.” We argue that viewing the CRISPR–Cas mechanism as facilitating a form of “directed mutation” more accurately represents how the system behaves and the history of neoDarwinian thinking, and is to be preferred.

Figurative communication (the use of metaphor, metonymy, hyperbole and irony) provides economy of expression, clarity, persuasiveness, politeness, evaluation, and communication of emotions. However, it also increases the potential for misunderstanding in situations when people lack shared background knowledge. This book combines theoretical frameworks with empirical studies that measure the effectiveness of different approaches to the use of figurative language in advertisements, to show how to maximise the benefits of creative metaphor and metonymy in global advertising. It highlights how subtle differences (...) in colour, layout, and combinations of different kinds of figurative language affect the reception and appreciation of creative advertising, shedding new light on the nature of figurative communication itself. With a balance between theory, experiments and practical case studies, this book is accessible for academics in linguistics and communication studies, as well as advertising and marketing professionals. (shrink)

The medial temporal lobe supports both navigation and declarative memory. On this basis, a theory of phylogenetic continuity has been proposed according to which episodic and semantic memories have evolved from egocentric and allocentric navigation in the physical world, respectively. Here, we explored the behavioral significance of this neurophysiological model by investigating the relationship between the performance of healthy individuals on a path integration and an episodic memory task. We investigated the path integration performance through a proprioceptive Triangle Completion Task (...) and assessed episodic memory through a picture recognition task. We evaluated the specificity of the association between performance in these two tasks by including in the study design a verbal semantic memory task. We also controlled for the effect of attention and working memory and tested the robustness of the results by including alternative versions of the path integration and semantic memory tasks. We found a significant positive correlation between the performance on the path integration the episodic, but not semantic, memory tasks. This pattern of correlation was not explained by general cognitive abilities and persisted also when considering a visual path integration task and a non-verbal semantic memory task. Importantly, a cross-validation analysis showed that participants' egocentric navigation abilities reliably predicted episodic memory performance. Altogether, our findings support the hypothesis of a phylogenetic continuity between egocentric navigation and episodic memory and pave the way for future research on the potential causal role of egocentric navigation on multiple forms of episodic memory. (shrink)

Despite mounting evidence that abusive supervision triggers interpersonal aggression, much remains unknown regarding the underlying causal mechanisms within this relationship. We explore the role of turnover intentions as a mediator in the relationship between abusive supervision and subsequent supervisor-rated interpersonal aggression. We use a sample of 324 supervisor–subordinate dyads from nine organizations and find support for this mediation effect. Furthermore, we find that power-distance orientation and perceived human resource support climate, as important boundary conditions, independently interact with abusive supervision to (...) weaken this positive impact on turnover intentions, thereby reducing interpersonal aggression. We also find via turnover intentions that abusive supervision intensifies interpersonal aggression among high power-distance-oriented individuals when the HR support climate is perceived to be low. Theoretical and practical implications are discussed. (shrink)

The aim of UK-REACH (“The United Kingdom Research study into Ethnicity And COVID-19 outcomes in Healthcare workers”) is to understand if, how, and why healthcare workers (HCWs) in the United Kingdom (UK) from ethnic minority groups are at increased risk of poor outcomes from COVID-19. In this article, we present findings from the ethical and legal stream of the study, which undertook qualitative research seeking to understand and address legal, ethical, and social acceptability issues around data protection, privacy, and information (...) governance associated with the linkage of HCWs’ registration data and healthcare data. We interviewed 22 key opinion leaders in healthcare and health research from across the UK in two-to-one semi-structured interviews. Transcripts were coded using qualitative thematic analysis. Participants told us that a significant aspect of Big Data research in public health is varying drivers of mistrust—of the research itself, research staff and funders, and broader concerns of mistrust within participant communities, particularly in the context of COVID-19 and those situated in more marginalised community settings. However, despite the challenges, participants also identified ways in which legally compliant and ethically informed approaches to research can be crafted to mitigate or overcome mistrust and establish greater confidence in Big Data public health research. Overall, our research indicates that a “Big Data Ethics by Design” approach to research in this area can help assure (1) that meaningful community and participant engagement is taking place and that extant challenges are addressed, and (2) that any new challenges or hitherto unknown unknowns can be rapidly and properly considered to ensure potential (but material) harms are identified and minimised where necessary. Our findings indicate such an approach, in turn, will help drive better scientific breakthroughs that translate into medical innovations and effective public health interventions, which benefit the publics studied, including those who are often marginalised in research. (shrink)

The ethical recruitment of participants with neurological disorders in clinical research requires obtaining initial and ongoing informed consent. The purpose of this study is to characterize barriers faced by research personnel in obtaining informed consent from research participants with neurological disorders and to identify strategies applied by researchers to overcome those barriers. This study was designed as a web-based survey of US researchers with an optional follow-up interview. A subset of participants who completed the survey were selected using a stratified (...) purposeful sampling strategy and invited to participate in an in-depth qualitative interview by phone or video conference. Data were analyzed using a mixed methods approach, including content analysis of survey responses and thematic analysis of interview responses. Over 1 year, 113 survey responses were received from US research personnel directly involved in obtaining informed consent from participants in neurological research. Frequently identified barriers to informed consent included: cognitive and communication impairments (e.g. aphasia), unrealistic expectations of research participants, mistrust of medical research, time constraints, literacy barriers, lack of available social support, and practical or resource-related constraints. Strategies to enhance informed consent included: involving close others to support participant understanding of study-related information, collaborating with more experienced research personnel to facilitate training in obtaining informed consent, encouraging participants to review consent forms in advance of consent discussions, and using printed materials and visual references. Beyond conveying study-related information, researchers included in this study endorsed ethical responsibilities to support deliberation necessary to informed consent in the context of misconceptions about research, unrealistic expectations, limited understanding, mistrust, and/or pressure from close others. Findings highlight the importance of training researchers involved in obtaining informed consent in neurological research to address disease-specific challenges and to support the decision-making processes of potential research participants and their close others. (shrink)

Clinical ethics consultants should show bold moral courage in discharging their duties to patients, families, and healthcare providers. Given the corrosive impact on trust, and on the appropriate d...

The purpose of this study was to evaluate, revise, and extend the Informed Consent Ontology (ICO) for expressing clinical permissions, including reuse of residual clinical biospecimens and health data. This study followed a formative evaluation design and used a bottom-up modeling approach. Data were collected from the literature on US federal regulations and a study of clinical consent forms. Eleven federal regulations and fifteen permission-sentences from clinical consent forms were iteratively modeled to identify entities and their relationships, followed by community (...) reflection and negotiation based on a series of predetermined evaluation questions. ICO included fifty-two classes and twelve object properties necessary when modeling, demonstrating appropriateness of extending ICO for the clinical domain. Twenty-six additional classes were imported into ICO from other ontologies, and twelve new classes were recommended for development. This work addresses a critical gap in formally representing permissions clinical permissions, including reuse of residual clinical biospecimens and health data. It makes missing content available to the OBO Foundry, enabling use alongside other widely-adopted biomedical ontologies. ICO serves as a machine-interpretable and interoperable tool for responsible reuse of residual clinical biospecimens and health data at scale. (shrink)

I identify three aspects to the puzzle of the speckled hen: A general puzzle, an epistemic puzzle, and a puzzle for the representationalist. These puzzles rely on an underlying “pictorialist” assumption, that we visually perceive general, determinable properties only in virtue of determinate properties or more specific, local features of our visual experience. This assumption is mistaken: Visual perception frequently starts from a position of uncertainty, and is routinely able to acquire information about general properties in the absence of more (...) specific information. Acknowledging that visual indeterminacy is structured this way resolves all three puzzles of the speckled hen. (shrink)

Recognizing limitations of the “syntactocentric” perspective, Jackendoff proposes a model in which phonology, syntax, and conceptual systems are each independently combinatorial. We can ask, however, whether he has taken this issue to its logical conclusion. The fundamental question that is not fully addressed is whether the combinatorial aspect of syntax originated in, and derives from, the indeed “far richer” conceptual system, a question to be discussed.

As there is in the neuroscience of individuals engaged in dynamic interactions, similar dark matter is present in the domain of interaction between humans and cognitive robots. Progress in second-person neuroscience will contribute to the development of robotic cognitive systems, and such developed robotic systems will be used to test the validity of the underlying theories.

The first complete sequence of an archaebacterial genome, that of Methanococcus jannaschii, has recently been published(1). Less than half of the open reading frames (ORFs) can be assigned a function based on similarity to known sequences in databases. These assignable ORFs fall into two general classes; those involved in transcription, translation and replication are more similar to eukaryotic homologs, while those determining metabolic processes are more similar to eubacterial versions. The immense but very rewarding task of making biological and evolutionary (...) sense of all this information has only just begun. (shrink)

Diverse living systems possess the capacity for regeneration; that is, they can under some circumstances repair, re-produce, and maintain themselves in the face of disturbance or damage. Think of systems as diverse as forests, microbial biofilms, corals, salamanders, hydra, and human skin cells. This capacity is fundamental to life—without it, many biological systems would be too fragile to cope with stress and would frequently collapse—but because it is multiply realized in wildly different living systems at many scales, finding a common (...) understanding may seem futile, and in fact research has proceeded along independent lines. For example, the sciences of organismal regeneration and ecological regeneration appear to have little more than a nominal relationship. Progress towards unification can be made, we think, by turning to evolutionary theory, specifically by synthesizing recent discussions of the evolution of individuals versus collectives with older literature about replicators versus interactors. This allows us to provide a partial answer in response to MacCord and Maienschein’s call for “basic units and mechanisms” of regeneration, relevant when that process is “adaptive.” We argue that the basics of adaptive regeneration can be understood and generalized through a modification of David Hull’s replicator-interactor framework. (shrink)

Renewed interest in human space exploration has highlighted the gaps in knowledge needed for successful long-duration missions outside low-Earth orbit. Although the technical challenges of such missions are being systematically overcome, many of the unknowns in predicting mission success depend on human behavior and performance, knowledge of which must be either obtained through space research or extrapolated from human experience on Earth. Particularly in human neuroscience, laboratory-based research efforts are not closely connected to real environments such as human space exploration. (...) As caves share several of the physical and psychological challenges of spaceflight, underground expeditions have recently been developed as a spaceflight analog for astronaut training purposes, suggesting that they might also be suitable for studying aspects of behavior and cognition that cannot be fully examined under laboratory conditions. Our objective is to foster a bi-directional exchange between cognitive neuroscientists and expedition experts by (1) describing the cave environment as a worthy space analog for human research, (2) reviewing work conducted on human neuroscience and cognition within caves, (3) exploring the range of topics for which the unique environment may prove valuable as well as obstacles and limitations, (4) outlining technologies and methods appropriate for cave use, and (5) suggesting how researchers might establish contact with potential expedition collaborators. We believe that cave expeditions, as well as other sorts of expeditions, offer unique possibilities for cognitive neuroscience that will complement laboratory work and help to improve human performance and safety in operational environments, both on Earth and in space. (shrink)

IntroductionSymptoms of schizophrenia are closely related to aberrant language comprehension and production. Macroscopic brain changes seen in some patients with schizophrenia are suspected to relate to impaired language production, but this is yet to be reliably characterized. Since heterogeneity in language dysfunctions, as well as brain structure, is suspected in schizophrenia, we aimed to first seek patient subgroups with different neurobiological signatures and then quantify linguistic indices that capture the symptoms of “negative formal thought disorder”.MethodsAtlas-based cortical thickness values of 66 (...) patients with first-episode psychosis and 36 healthy controls were analyzed with hierarchical clustering algorithms to produce neuroanatomical subtypes. We then examined the generated subtypes and investigated the quantitative differences in MRS-based glutamate levels [in the dorsal anterior cingulate cortex ] as well as in three aspects of language production features: fluency, syntactic complexity, and lexical cohesion.ResultsTwo neuroanatomical subtypes among patients were observed, one with near-normal cortical thickness patterns while the other with widespread cortical thinning. Compared to the subgroup of patients with relatively normal cortical thickness patterns, the subgroup with widespread cortical thinning was older, with higher glutamate concentration in dACC and produced speech with reduced mean length of T-units and lower repeats of content words, despite being equally fluent.ConclusionWe characterized a patient subgroup with thinner cortex in first-episode psychosis. This subgroup, identifiable through macroscopic changes, is also distinguishable in terms of neurochemistry and language behavior. This study supports the hypothesis that glutamate-mediated cortical thinning may contribute to a phenotype that is detectable using the tools of computational linguistics in schizophrenia. (shrink)

What kind of content must visual states have if they are to offer direct (noninferential) justification for our external world beliefs? How must they present that content if the degree of justification they provide is to reflect the nuance of our changing visual experiences? This paper offers an argument for the view that visual states comprise not only a content, but a confidence relation to that content. This confidence relation lets us explain how visual states can offer noninferential perceptual justification (...) of differing degrees for external world beliefs. These confidence relations let visual states justify beliefs in a way that is sensitive to subtle differences in the character of our visual experiences, while still allowing that visual states give us direct access to the external world in virtue of their content. (shrink)

What does it take to be prejudiced against a particular group? And is prejudice always epistemically problematic, or are there epistemically innocent forms of prejudice? In this paper, I argue that certain important forms of prejudice can be wholly constituted by the differential accessibility of certain pieces of information. These accessibility relations constitute a salience structure. A subject is prejudiced against a particular group when their salience structure is unduly organised around that category. This is significant because it reveals that (...) prejudice does not require the presence of any explicit cognitive or emotive attitude, nor need it manifest in behaviour: it can be solely constituted by the organisation of information, where that information may be accurate and well-founded. Nonetheless, by giving an account of ‘undue organisation’ in epistemic terms, I show that this account is compatible with an understanding of prejudice as a negatively valenced epistemic category. (shrink)

The coronavirus disease (COVID-19) crisis provoked an organizational ethics dilemma: how to develop ethical pandemic policy while upholding our organizational mission to deliver relationship- and patient-centered care. Tasked with producing a recommendation about whether healthcare workers and essential personnel should receive priority access to limited medical resources during the pandemic, the bioethics department and survey and interview methodologists at our institution implemented a deliberative approach that included the perspectives of healthcare professionals and patient stakeholders in the policy development process. Involving (...) the community more, not less, during a crisis required balancing the need to act quickly to garner stakeholder perspectives, uncertainty about the extent and duration of the pandemic, and disagreement among ethicists about the most ethically supportable way to allocate scarce resources. This article explains the process undertaken to garner stakeholder input as it relates to organizational ethics, recounts the stakeholder perspectives shared and how they informed the triage policy developed, and offers suggestions for how other organizations may integrate stakeholder involvement in ethical decision-making as well as directions for future research and public health work. (shrink)

How do people learn to talk about the causal and temporal relations between events, and the motivation behind why people do what they do? The narrative practice hypothesis of Hutto and Gallagher holds that children are exposed to narratives that provide training for understanding and expressing reasons for why people behave as they do. In this context, we have recently developed a model of narrative processing where a structured model of the developing situation is built up from experienced events, and (...) enriched by sentences in a narrative that describe event meanings. The main interest is to develop a proof of concept for how narrative can be used to structure, organize and describe experience. Narrative sentences describe events, and they also define temporal and causal relations between events. These relations are specified by a class of narrative function words, including “because, before, after, first, finally.” The current research develops a proof of concept that by observing how people describe social events, a developmental robotic system can begin to acquire early knowledge of how to explain the reasons for events. We collect data from naïve subjects who use narrative function words to describe simple scenes of human-robot interaction, and then employ algorithms for extracting the statistical structure of how narrative function words link events in the situation model. By using these statistical regularities, the robot can thus learn from human experience about how to properly employ in question-answering dialogues with the human, and in generating canonical narratives for new experiences. The behavior of the system is demonstrated over several behavioral interactions, and associated narrative interaction sessions, while a more formal extended evaluation and user study will be the subject of future research. Clearly this is far removed from the power of the full blown narrative practice capability, but it provides a first step in the development of an experimental infrastructure for the study of socially situated narrative practice in human-robot interaction. (shrink)

Wouldn’t it be nice if hateful people were invariably stupid to boot, if their prejudiced attitudes could be attributed to some kind of irrationality? Tempting though this prospect is, Endre Begby warns us against it. Philosophers have tended, he writes, to assume that prejudiced beliefs are always ‘a symptom of some kind of breakdown of epistemic rationality’ (p. 2). This view is Begby's target. There can, he claims, be epistemically unimpeachable instances of prejudicial belief. That claim comes bound up with (...) a broader account of what prejudice is, and of the epistemic framework we should adopt when evaluating agents. The result is a thought-provoking account of prejudice, and a case study of the tensions inherent in the non-ideal project. By intertwining discussion of prejudice with a discussion of the appropriate epistemological framework for its evaluation, the book encourages reflection on a series of important methodological questions, and ultimately a broader interrogation of the role of philosophy in the study of prejudice. (shrink)

What, if anything, is epistemically wrong with beliefs involving accurate statistical generalizations about demographic groups? This paper argues that there is a perfectly general, underappreciated epistemic flaw which affects both ethically charged and uncharged statistical generalizations. Though common to both, this flaw can also explain why demographic statistical generalizations give rise to the concerns they do. To identify this flaw, we need to distinguish between the accuracy and the projectability of statistical beliefs. Statistical beliefs are accompanied by an implicit representation (...) of the statistic's modal profile. Their modal profile determines the circumstances in which they can legitimately be projected to unobserved instances. Errors in that implicit content can be compatible with the accuracy of the “bare” statistic, whilst systematically leading to downstream errors in reasoning, in a manner which reveals an epistemic flaw with an important aspect of the belief state itself. (shrink)

The recent wave of same-sex marriage legalization marks the most significant human rights progress in decades. Nevertheless, the valuation effects on corporate America are unclear. While the arguments supporting marriage equality are largely in the domain of law and sociology, many prominent business leaders are actively engaged in campaigns advocating marriage equality. This suggests that the LGBT civil rights movement of our generation might have valuation implications for corporate America beyond human rights equality. This paper investigates the market perception of (...) state-level same-sex marriage legalization by examining the short-window market reactions to firms headquartered in a state. We find positive market reactions to firms headquartered in states that legally recognize marriage equality. Further, we find that the market views companies more favorably in: first-mover states before the Supreme Court ruling of United States v. Windsor, and states that have stronger anti-discrimination laws for the LGBT community. Our findings complement prior research that focuses on the economic consequences of firm-level LGBT human rights policies by examining the state/nation-level legal impact, adding a new dimension to ethical practices that can have economic consequences. (shrink)

We commonly evaluate search engines and the results they return, but what grounds those evaluations? One straightforward way of evaluating search engines appeals to their ability to satisfy the goals of the user. Are there, in addition, user-independent norms, that allow us to evaluate search engines in ways that may come apart from their ability to satisfy the individuals who use them? One way of grounding such norms appeals to moral or political considerations. I argue that in addition to those (...) norms, there are also distinct user-independent epistemic norms that apply to search engines. Evaluating search engines relative to them, however, requires us to appreciate the impact search engines have on our practices and norms of inquiry more broadly: by systematically altering the accessibility of information, search engines don’t just give us information but shape our collective imagination, and the categories it operates over. (shrink)

Visual perception relies on stored information and environmental associations to arrive at a determinate representation of the world. This opens up the disturbing possibility that our visual experiences could themselves be subject to a kind of racial bias, simply in virtue of accurately encoding previously encountered environmental regularities. This possibility raises the following question: what, if anything, is wrong with beliefs grounded upon these prejudicial experiences? They are consistent with a range of epistemic norms, including evidentialist and reliabilist standards for (...) justification. I argue that we will struggle to locate a flaw with these sorts of perceptual beliefs so long as we focus our analysis at the level of the individual and her response to information. We should instead broaden our analysis to include the social structure within which the individual is located. Doing so lets us identify a problem with the way in which unjust social structures in particular “gerrymander” the regularities an individual is exposed to, and by extension the priors their visual system draws on. I argue that in this way, social structures can cap perceptual skill. (shrink)

It is an apparent truism about visual perception that we can see only what is visible to us. It is also frequently accepted that visual perception is dynamic: our visual experiences are extended through, and can evolve over time. I argue that taking the dynamism of visual experience seriously renders certain simplistic interpretations of the first claim, that a subject at a given time can see only what is visible to her at that time, false: we can be meaningfully said (...) to see invisible objects. This counterintuitive result in turn focuses our attention on the relationship between perception and memory. I show that it is difficult to draw a clear or simple distinction between the two. Memory and perception rely on, and blend with, one another. Together, these claims point us away from understanding visual perception as a simple reflection of the environment, and instead as closer to a process of dynamic modelling that draws together occurrent stimulation and stored information. (shrink)

Volume 20, Issue 7, July 2020, Page 196-198.

Western societies today are coming unmoored in the face of an earth-shaking ethical and cultural paradigm shift. At its core is the question of what it means to be human and how we are meant to live. The old answers are no longer accepted; a dizzying array of options are offered in their stead. Underpinning this smorgasbord of lifestyles is a thicket of unquestioned assumptions, such as the separation of gender from biological sex, which not so long ago would have (...) been universally rejected as radical notions. In the spring of 2019, a group of Orthodox Christian scholars drawn from a wide variety of academic disciplines met together to offer responses to the moral crisis our generation faces, elaborating upon its various forms and facilitating a fuller understanding of some of its theological and philosophical foundations. In doing so they offer support to all those who question the claims that are so forcefully insisted upon today--a clarity that will aid them in standing up and resisting trends that have already shown to be the cause of great suffering and unhappiness. (shrink)

The Sleeping Beauty problem has spawned a debate between “thirders” and “halfers” who draw conflicting conclusions about Sleeping Beauty's credence that a coin lands heads. Our analysis is based on a probability model for what Sleeping Beauty knows at each time during the experiment. We show that conflicting conclusions result from different modeling assumptions that each group makes. Our analysis uses a standard “Bayesian” account of rational belief with conditioning. No special handling is used for self-locating beliefs or centered propositions. (...) We also explore what fair prices Sleeping Beauty computes for gambles that she might be offered during the experiment. (shrink)

Proponents of natural normativity maintain that the moral evaluation of human beings shares a certain common conceptual pattern with the evaluation of other living things. The adequacy of this analogy has been challenged, with opponents arguing that because humans are rational, there is a gap between what is natural and what is normative for humans. Rational creatures, the argument goes, are importantly different from non-rational living things in that reason includes the ability to step back from what is natural and (...) ask whether it is good that our nature is constituted as it is. Micah Lott has attempted a response to this challenge. After evaluating his proposal, I offer a reply that attempts to resolve an important dilemma, namely, that the naturalist either lacks a satisfying response to the authority-of-nature challenge or is forced to abandon naturalism. (shrink)

Transcranial magnetic stimulation, EEG, and behavioral studies by our group implicate spurious activation of speech perception neurocircuitry in the genesis of auditory hallucinations in schizophrenia. The neurobiological basis of these abnormalities remains uncertain, however. We review our ongoing studies, which suggest that altered cortical coupling underlies speech processing in schizophrenia and is expressed via disrupted gamma resonances and impaired corollary discharge function of self-generated verbal thought.