Wright’s “adaptive landscape” has been influential in evolutionary thinking but controversial, especially because the landscape that organisms encounter is altered by the evolutionary process itsel...

Proposed models of closed timelike curves have been shown to enable powerful information-processing protocols. We examine the simulation of models of CTCs both by other models of CTCs and by physical systems without access to CTCs. We prove that the recently proposed transition probability CTCs are physically equivalent to postselection CTCs, in the sense that one model can simulate the other with reasonable overhead. As a consequence, their information-processing capabilities are equivalent. We also describe a method for quantum computers to (...) simulate Deutschian CTCs. In cases for which the overhead is reasonable, it might be possible to perform the simulation in a table-top experiment. This approach has the benefit of resolving some ambiguities associated with the equivalent circuit model of Ralph et al. Furthermore, we provide an explicit form for the state of the CTC system such that it is a maximum-entropy state, as prescribed by Deutsch. (shrink)

The rise of quantum information theory has lent new relevance to experimental tests for non-classicality, particularly in controversial cases such as adiabatic quantum computing superconducting circuits. The Leggett-Garg inequality is a “Bell inequality in time” designed to indicate whether a single quantum system behaves in a macrorealistic fashion. Unfortunately, a violation of the inequality can only show that the system is either (i) non-macrorealistic or (ii) macrorealistic but subjected to a measurement technique that happens to disturb the system. The “clumsiness” (...) loophole (ii) provides reliable refuge for the stubborn macrorealist, who can invoke it to brand recent experimental and theoretical work on the Leggett-Garg test inconclusive. Here, we present a revised Leggett-Garg protocol that permits one to conclude that a system is either (i) non-macrorealistic or (ii) macrorealistic but with the property that two seemingly non-invasive measurements can somehow collude and strongly disturb the system. By providing an explicit check of the invasiveness of the measurements, the protocol replaces the clumsiness loophole with a significantly smaller “collusion” loophole. (shrink)

The Cambridge Handbook of Applied Psychological Ethics is a valuable resource for psychologists and graduate students hoping to further develop their ethical decision making beyond more introductory ethics texts. The book offers real-world ethical vignettes and considerations. Chapters cover a wide range of practice settings, populations, and topics, and are written by scholars in these settings. Chapters focus on the application of ethics to the ethical dilemmas in which mental health and other psychology professionals sometimes find themselves. Each chapter introduces (...) a setting and gives readers a brief understanding of some of the potential ethical issues at hand, before delving deeper into the multiple ethical issues that must be addressed and the ethical principles and standards involved. No other book on the market captures the breadth of ethical issues found in daily practice and focuses entirely on applied ethics in psychology. (shrink)

This article provides an argument against ethical subjectivism as a normative theory. It highlights how ethical subjectivism does not correspond with the phenomena of how we argue. Ethical subjectivism suggests that ethics is a matter of subjective preferences, but we do not usually enter into a serious debate on such matters. On the contrary, when we argue we believe that what we argue for is objectively true. This may pose a serious problem to an ethical subjectivist who holds that ethical (...) conceptions are neither superior nor inferior to each other. The article also outlines the implications of the position of an ethical subjectivist and how they go against our deepest moral intuition that. (shrink)

Aan de hand van het werk van de Duitse romancier W.G. Sebald breekt Mark Anderson een lans voor een herwaardering van de melancholie, als enig mogelijke houding om de last van het verleden die we moeten dragen, te kunnen torsen. De kunsten zijn het aangewezen instrument voor deze ‘daad van verzet’ ‘tegen de krachten van vernietiging en vergeten in het menselijk leven’. Het werk van Sebald, achtervolgd door de ‘postmemory’ aan het Duitse oorlogsgeweld dat hij zelf alleen indirect had (...) meegemaakt, is hiervan een veelzeggende illustratie. (shrink)

Anderson beschrijft het kosmopolitisme als een omstreden kwestie in 'de culturele oorlogen van het hedendaagse Amerika' en gaat in op het 'niet-hegemonistische' begrip van het kosmopolitisme.

In het verwerkingsproces van de nazi-tijd heeft de samenwerking tussen Duitse en Amerikaanse germanisten een belangrijke rol gespeeld. De revival van de Exil-schrijvers is erdoor bevorderd, maar tegelijkertijd is hierdoor in beide landen een vertekening in de beeldvorming ontstaan.

The evaluation of competency in the field of psychology has gained international attention in recent years. Focusing on international competencies can promote high standards of care and identify common values of the profession. However, there is little research regarding international perceptions of competency. Examining ethics codes from different countries can highlight international standards of competent practice, as ethics codes outline professional expectations of the field. The current study compared the ethics standards found in 47 codes of ethics representing 51 countries. (...) Seventeen competency standards emerged after ethics codes were analyzed. Implications for the international practice of psychology are discussed. (shrink)

It has been suggested that type I adenylyl cyclase may play a unique role in long-term potentiation, due to both unique regulatory properties as well as a specialized distribution within the mammalian brain. This would allow an integration of the signals wrought by increased intracellular calcium with those conveyed into the cellular milieu via increased cAMP. These results are discussed in the context of changes in cellular structure, because of changing interactions between G proteins and cytoskeletal components, which might be (...) expected to accompany chronic synaptic activation. (shrink)

Bennett and Schumacher’s postselected quantum teleportation is a model of closed timelike curves (CTCs) that leads to results physically different from Deutsch’s model. We show that even a single qubit passing through a postselected CTC (P-CTC) is sufficient to do any postselected quantum measurement with certainty, and we discuss an important difference between “Deutschian” CTCs (D-CTCs) and P-CTCs in which the future existence of a P-CTC might affect the present outcome of an experiment. Then, based on a suggestion of Bennett (...) and Smith, we explicitly show how a party assisted by P-CTCs can distinguish a set of linearly independent quantum states, and we prove that it is not possible for such a party to distinguish a set of linearly dependent states. The power of P-CTCs is thus weaker than that of D-CTCs because the Holevo bound still applies to circuits using them, regardless of their ability to conspire in violating the uncertainty principle. We then discuss how different notions of a quantum mixture that are indistinguishable in linear quantum mechanics lead to dramatically differing conclusions in a nonlinear quantum mechanics involving P-CTCs. Finally, we give explicit circuit constructions that can efficiently factor integers, efficiently solve any decision problem in the intersection of NP and coNP, and probabilistically solve any decision problem in NP. These circuits accomplish these tasks with just one qubit traveling back in time, and they exploit the ability of postselected closed timelike curves to create grandfather paradoxes for invalid answers. (shrink)

Psychologists recognize the need to know and adhere to the ethics code in the country or countries in which they work. However, most countries do not have ethics codes that govern the work of psychologists. Thus, psychologists working in countries that do not have an ethics code face a dilemma: They need to behave ethically yet do not know the guidelines or standards that govern these behaviors. This article highlights some cross-national conditions about which psychologists should be aware when working (...) cross-nationally, especially in countries that may lack an ethics code. These include knowledge of the host country's prevailing moral values, its laws and administrative policies, and ethics codes as well as policies approved by international agencies and associations. Eight guidelines are provided for psychologists working in host countries that lack ethics codes. (shrink)

We are never illness or disease, but, rather, always their sum in the world of day-to-day experience. Disease and illness are not closed systems, but mutually constitutive and continuously interacting worlds. In the patient’s case it is always experience as well. Pain, sickness and death help make that particular experienced identity unavoidable, and at some level ultimately inaccessible to medicine’s changing understanding of disease and tools for managing it. Health—rather than cost containment, specific conditions, or technologies—should be the central focus (...) for health care and health-care reform. A compelling reason to focus on health comes from the observation that the prevalence of disease over the .. (shrink)

Responding to recent concerns about the reliability of the published literature in psychology and other disciplines, we formed the X-Phi Replicability Project to estimate the reproducibility of experimental philosophy. Drawing on a representative sample of 40 x-phi studies published between 2003 and 2015, we enlisted 20 research teams across 8 countries to conduct a high-quality replication of each study in order to compare the results to the original published findings. We found that x-phi studies – as represented in our sample (...) – successfully replicated about 70% of the time. We discuss possible reasons for this relatively high replication rate in the field of experimental philosophy and offer suggestions for best research practices going forward. (shrink)

Childhood adversity is associated with altered or dysregulated stress reactivity; these altered patterns of physiological functioning persist into adulthood. Evidence from both preclinical animal models and human neuroimaging studies indicates that early life experience differentially influences stressor-evoked activity within central visceral neural circuits proximally involved in the control of stress responses, including the subgenual anterior cingulate cortex, paraventricular nucleus of the hypothalamus, bed nucleus of the stria terminalis and amygdala. However, the relationship between childhood adversity and the resting-state connectivity of (...) this central visceral network remains unclear. To this end, we examined relationships between childhood threat and childhood socioeconomic deprivation, the resting-state connectivity between our regions of interest, and affective symptom severity and diagnoses. We recruited a transdiagnostic sample of young adult males and females with a full distribution of maltreatment history and symptom severity across multiple affective disorders. Resting-state data were acquired using a 7.2-min functional magnetic resonance imaging sequence; noted ROIs were applied as masks to determine ROI-to-ROI connectivity. Threat was determined by measures of childhood traumatic events and abuse. Socioeconomic deprivation was determined by a measure of childhood socioeconomic status. Covarying for age, race and sex, greater childhood threat was significantly associated with lower BNST-PVN, amygdala-sgACC and PVN-sgACC connectivity. No significant relationships were found between SED and resting-state connectivity. BNST-PVN connectivity was associated with the number of lifetime affective diagnoses. Exposure to threat during early development may entrain altered patterns of resting-state connectivity between these stress-related ROIs in ways that contribute to dysregulated neural and physiological responses to stress and subsequent affective psychopathology. (shrink)

Mobile devices with health apps, direct-to-consumer genetic testing, crowd-sourced information, and other data sources have enabled research by new classes of researchers. Independent researchers, citizen scientists, patient-directed researchers, self-experimenters, and others are not covered by federal research regulations because they are not recipients of federal financial assistance or conducting research in anticipation of a submission to the FDA for approval of a new drug or medical device. This article addresses the difficult policy challenge of promoting the welfare and interests of (...) research participants, as well as the public, in the absence of regulatory requirements and without discouraging independent, innovative scientific inquiry. The article recommends a series of measures, including education, consultation, transparency, self-governance, and regulation to strike the appropriate balance. (shrink)