Over two decades ago, Davids et al. (1994) and Handford et al. (1997) raised theoretical concerns associated with traditional, reductionist, mechanistic perspectives of movement coordination and skill acquisition for sport scientists interested in practical applications for training designs. These seminal papers advocated an emerging consciousness grounded in an ecological approach, signalling the need for sports practitioners to appreciate the constraints-led, deeply entangled and non-linear reciprocity between the organism (performer), task and environment subsystems. Over two decades later, the areas of skill (...) acquisition, practice and training design, performance analysis and preparation, and talent development in sport science have never been so vibrant in terms of theoretical modelling, knowledge generation and innovation, and technological deployment. Viewed at an ecological level of analysis, the work of sports practitioners has progressively transitioned toward the facilitation of an evolving relationship between an organism (athlete, team) and its environment (sports competition). This commentary sets out to explore how these original ideas from Davids et al. (1994) and Handford et al. (1997) have been advanced through the theoretical lens of Ecological Dynamics. Concurrently, we provide case study exemplars, from applied practice in high-performance sports organisations, to illustrate how these contemporary perspectives are shaping the work of sports practitioners (sport ecology designers) in practice and performance preparation. (shrink)

The world is awash in bullshit, and we're drowning in it. Politicians are unconstrained by facts. Science is conducted by press release. Startup culture elevates bullshit to high art. These days, calling bullshit is a noble act. Based on Carl Bergstrom and Jevin West's popular course at the University of Washington, Calling Bullshit is a modern handbook to the art of skepticism. Bergstrom, a computational biologist, and West, an information scientist, catalogue bullshit in its many forms, explaining and offering (...) readers the tools to see through the obfuscations, deliberate and careless, that dominate every realm of our lives. They instruct readers to ask: Who is saying it? How do they know? What do they have to gain by persuading me? Are the numbers or results too good or too dramatic to be true? Is the claim comparing like with like or apples and oranges? Is it confirming your personal bias? In this lively guide to everything from misleading statistics to "fake news," Bergstrom and West help you recognize bullshit whenever and wherever you encounter it--in data, in conversation, even within yourself--and explain it to your crystal-loving aunt or casually racist uncle. Now more than ever, calling bullshit is crucial to a properly functioning community, whether it be a circle of friends, a network of academics, or the citizenry of a nation. (shrink)

Biologists rely heavily on the language of information, coding, and transmission that is commonplace in the field of information theory developed by Claude Shannon, but there is open debate about whether such language is anything more than facile metaphor. Philosophers of biology have argued that when biologists talk about information in genes and in evolution, they are not talking about the sort of information that Shannon’s theory addresses. First, philosophers have suggested that Shannon’s theory is only useful for developing a (...) shallow notion of correlation, the so-called causal sense of information. Second, they typically argue that in genetics and evolutionary biology, information language is used in a semantic sense, whereas semantics are deliberately omitted from Shannon’s theory. Neither critique is well-founded. Here we propose an alternative to the causal and semantic senses of information: a transmission sense of information, in which an object X conveys information if the function of X is to reduce, by virtue of its sequence properties, uncertainty on the part of an agent who observes X. The transmission sense not only captures much of what biologists intend when they talk about information in genes, but also brings Shannon’s theory back to the fore. By taking the viewpoint of a communications engineer and focusing on the decision problem of how information is to be packaged for transport, this approach resolves several problems that have plagued the information concept in biology, and highlights a number of important features of the way that information is encoded, stored, and transmitted as genetic sequence. (shrink)

Response to commentaries on “The Transmission Sense of Information” Content Type Journal Article Pages 195-200 DOI 10.1007/s10539-011-9257-3 Authors Carl T. Bergstrom, Department of Biology, University of Washington, Seattle, WA 98195-1800, USA Martin Rosvall, Integrated Science Lab, Department of Physics, Umeå University, 901 87 Umeå, Sweden Journal Biology and Philosophy Online ISSN 1572-8404 Print ISSN 0169-3867 Journal Volume Volume 26 Journal Issue Volume 26, Number 2.

A wide range of ecological and evolutionary models predict variety in phenotype or behavior when a population is at equilibrium. This heterogeneity can be realized in different ways. For example, it can be realized through a complex population of individuals exhibiting different simple behaviors, or through a simple population of individuals exhibiting complex, varying behaviors. In some theoretical frameworks these different realizations are treated as equivalent, but natural selection distinguishes between these two alternatives in subtle ways. By investigating an increasingly (...) complex series of models, from a simple fluctuating selection model up to a finite population hawk/dove game, we explore the selective pressures which discriminate between pure strategists, mixed at the population level, and individual mixed strategists. Our analysis reveals some important limitations to the ESS framework often employed to investigate the evolution of complex behavior. (shrink)

Redish et al. trace vulnerabilities in habit and planning systems almost exclusively to pharmacological effects of addictive substances on underlying brain systems. As we discuss, however, these systems also can be disrupted by purely psychological factors inherent in normal decision-making and everyday behavior. A truly unified model must integrate the contribution of both sets of factors in driving addiction.

Fluctuating asymmetry (FA) is small deviations from perfect symmetry in normally bilaterally symmetrical traits. We examined the relationship between FA of five body traits (ear height, length of three digits, and ankle circumference) and self-reported scores of physical and verbal aggression in a sample of 90 boys aged 10 to 15 years. The relationships between FA and scores of aggression (particularly physical aggression) were found to be negative; in other words, the most symmetrical boys showed highest aggression. One trait (ankle (...) circumference) showed the characteristics of “ideal” FA—parametric mean of zero and a normal distribution. Mean asymmetries calculated from six repeated measures of ankle FA in 30 subjects taken over a period of five months showed strong negative associations with scores of physical aggression which were independent of age, height, and weight.It is argued that soft tissue “cyclical” FA (as opposed to “fixed” bony FA) is dependent on the secretion of hormones: for example, cortisol. Causal associations between behavioral traits such as aggresion and hormones will lead to similar correlations between FA and behavior. (shrink)

Using the corpus of JSTOR articles, we investigate the role of gender in collaboration patterns across the scholarly landscape by analyzing gender-based homophily--the tendency for researchers to co-author with individuals of the same gender. For a nuanced analysis of gender homophily, we develop methodology necessitated by the fact that the data comprises heterogeneous sub-disciplines and that not all authorships are exchangeable. In particular, we distinguish three components of gender homophily in collaborations: a structural component that is due to demographics and (...) non-gendered authorship norms of a scholarly community, a compositional component which is driven by varying gender representation across sub-disciplines, and a behavioral component which we define as the remainder of observed homophily after its structural and compositional components have been taken into account. Using minimal modeling assumptions, we measure and test for behavioral homophily. We find that significant behavioral homophily can be detected across the JSTOR corpus and show that this finding is robust to missing gender indicators in our data. In a secondary analysis, we show that the proportion of female representation in a field is positively associated with significant behavioral homophily. (shrink)

Costly signalling theory has become a common explanation for honest communication when interests conflict. In this paper, we provide an alternative explanation for partially honest communication that does not require significant signal costs. We show that this alternative is at least as plausible as traditional costly signalling, and we suggest a number of experiments that might be used to distinguish the two theories.

We explore the various ethical challenges that arise during the practical implementation of an emergency resource allocation protocol. We argue that to implement an allocation plan in a crisis, a hospital system must complete five tasks: (1) formulate a set of general principles for allocation, (2) apply those principles to the disease at hand to create a concrete protocol, (3) collect the data required to apply the protocol, (4) construct a system to implement triage decisions with those data, and (5) (...) create a system for managing the consequences of implementing the protocol, including the effects on those who must carry out the plan, the medical staff, and the general public. Here we illustrate the complexities of each task and provide tentative solutions, by describing the experiences of the Coronavirus Ethics Response Group, an interdisciplinary team formed to address the ethical issues in pandemic resource planning at the University of Rochester Medical Center. While the plan was never put into operation, the process of preparing for emergency implementation exposed ethical issues that require attention. (shrink)

Inconsistency robustness is information system performance in the face of continually pervasive inconsistencies---a shift from the previously dominant paradigms of inconsistency denial and inconsistency elimination attempting to sweep them under the rug. Inconsistency robustness is a both an observed phenomenon and a desired feature: Inconsistency Robustness is an observed phenomenon because large information-systems are required to operate in an environment of pervasive inconsistency. Inconsistency Robustness is a desired feature because we need to improve the performance of large information system. This (...) volume has revised versions of refereed articles and panel summaries from the first two International Symposia on Inconsistency Robustness conducted under the auspices of the International Society for Inconsistency Robustness. The articles are broadly based on theory and practice, addressing fundamental issues in inconsistency robustness. The field of Inconsistency Robustness aims to provide practical rigorous foundations for computer information systems dealing with pervasively inconsistent information.". (shrink)

The problem of the many threatens to show that, in general, there are far more ordinary objects than you might have thought. I present and motivate a solution to this problem using many-one identity. According to this solution, the many things that seem to have what it takes to be, say, a cat, are collectively identical to that single cat.

In lieu of an abstract, here is a brief excerpt of the content:THE REDUCTION OF ESSENCE IN THE THOUGHT OF THOMAS AQillNAS AND EDMUND HUSSERL MARTIN T. Wooos Loyola, Marymount University Los.Angeles, California 'TIRE PURPOSE of this article is to address, first of all, the iissue of whether St. Thomas anticirp1ated the pheomenological pI1otb~em in both an epistemological and metaphysica,l sense, and subsequently articulated its solution he:£ore the investigations of modern phenomenofogists began. The secondary purpose of this writing is to (...) reveal the anomrulies :£aiced by the phenomenologist Edmund Hussel'll, who, in noting the same problem earlier ·addressed by Aquinas, attempted to discover the narrow bridge between reality and knowledge and £ailed to find it. This effort will he amply documented from his Gottingen lectures published 1 as The Idea of Phenomenology late in his career. Thomas, on the contrary, seemed to find this bridge with relative ease.and went on to clarify with admira:hle lucidity the steps to be taken in traversing it, paxticularly in the latter part of his little work On Being and Essence (De Ente et Essentia), written for the Dominican students 1at Naples rubout U55. Aquinas and Essence Absolutely Coniidered After analyzing in some detail the notion of species, genus·and difference Aquinas states in his work On Being and Essence thaJt sruoh universal notions could not be said to belong in.the strict sense to real existent individuals, an in·sight the Blatonists had highlighted from antiquity by assuming that universals exist independently of thought. "In this way" 443 444 MARTIN T. WOODS Aquinas says, "the genus a.nd species would nut be predicated of th~s individual; for,it cannot be said that Socmtes is what is separated from him," 1 n.a.mely, the universal natures of man and animal. However, in.spite of the pmblem of ontologism the Platonists eventually CTeated, they were the first to clarify the distinction tha.t still sepa,rates sense experienoe f·rom universal notions in the thinkiing of philosophers today. In order to close the yawning epistemologiorul chasm that resulted, Plato, the architect o[ this separation, had gone on to claim that the world of ideal forms or unive'l's·al notions somehow i11umined the wodd of sense appearances a;nd gave them meaning. It is ;at this point that Aquinas, unlike his master in philosophy, Aristotle, parts company comp~etely with the Platonists and goes on to question the immediate relation of formal universals to the understanding o[ parlicula!'.s. "Nor further, would this sepamted something (e.g. the species man) be of any use in knowing this singular (i.e. Soorates the individual man)." 2 This somewhat unexpected statement of Aquinas seems to put him at odds with the position of Aristotle on whom he relied so heavily for his classic analysis of predicrubles. Why this striking deviiation from the ·authority of the philosopher who states quite specifically in the Categories that while the univerrsrul is not in any way present in things, it·is nevertheless predicable of them? Aqumas on the contmry seems to suggest that his notion of a " predicable " is a bit more 1 ahstmct than Aristotle's. It was at this point in the De Ente et Essentia that Aquinas laid a firm basis :for trhe ela:bo.ootion of a phenomenological reduction without lrubeling it as such. In order to accomplish this purpose, Aquinas decided to clarify.an important distinction between the essence conceived as " a universal " iand the " essence absolutely considered." 1 Thomas Aquinas, De Ente et Essentia (52) trans. by Joseph Bobik, On Being and, Essence. Notre Dame, Indiana: University of Notre Dame Press, 1965. p. 119. 2 Ibid,. THOMAS AQUINAS AND EDMUND HUSSERL 445 " Now a natlliVe or essence signified as a whole," he states, " can be considered in two ways. In one way it can be considel.1ed according to its proper content, and this is an absolute oonsidemtion of it. And in this way, nothing is true of it except what :belongs to it as such. For e:immple, to man as man belong rational animal, and whatever else falls in ills definition." 3 Regarding this first me8!Iling of essence, he then goes on to say, "1and... (shrink)

The principle of proportionate causality is often cited as a cause for concern that Thomistic metaphysics may be irreconcilable with a theory of biological evolution. St. Thomas does hold that for the generation of what he calls perfect animals, a generator of the same species is required. This study clarifies what the proportionate causes of generated organisms are for Thomas, examining his views about spontaneous generation, reproductive generation, and hybridization, while also articulating the roles of both the heavenly bodies and (...) their separate movers as universal causes of generation. This study establishes that Thomas’s assertion of the need for a univocal generator for perfect animals is grounded not in the principle of proportionate causality, but rather in physical and biological doctrines received from Aristotle and in a causal principle that seems reconcilable with biological evolution, namely, that a remote universal cause requires more mediating causes to produce more powerful effects. (shrink)

Philosophy flourished in Australia after the war. There was spectacular growth in both the number of departments and the number of philosophers. On top of this philosophy spread beyond the philosophy departments. Serious studies, and interest in philosophy is now common in faculties as diverse as law, science and education. Neither is this development merely quantitative, the Australian researcher has come of age and contributes widely to international debates. At least one movement originated in Australia. This makes the study of (...) philosophy in Australia timely, evidenced by the number of articles concerned with this area that begin to appear in international journals. In Australia itself there is growing interest in the history of the country's philosophical development. There are discussions in conferences and meetings: the matter is now the subject of courses. (shrink)

Interpreters of Aquinas tend to posit a seamless transition from knowledge of the transcendentals in the abstract to naming God as one, true, and good. Some even suggest that the convertibility of the transcendentals with being implies the unity, truth, and goodness of esse divinum. Others hold simply that the meaning and order of these divine names is founded upon the meaning of the transcendentals. This study: (1) explains why Aquinas avoids “transcendental arguments” for these divine names; (2) argues that (...) truth and goodness, as divine names, are derived not only from the transcendental meanings of these terms but also from specific perfections: namely, truth of intellect and moral goodness; (3) shows that the order of these divine names in the two Summae (being, good, one, true) better reflects the order of the transcendentals as received perfections than their more familiar order in the abstract (being, one, true, good). (shrink)

Interpreters of Aquinas tend to posit a seamless transition from knowledge of the transcendentals in the abstract to naming God as one, true, and good. Some even suggest that the convertibility of the transcendentals with being implies the unity, truth, and goodness of esse divinum. Others hold simply that the meaning and order of these divine names is founded upon the meaning of the transcendentals. This study: explains why Aquinas avoids “transcendental arguments” for these divine names; argues that truth and (...) goodness, as divine names, are derived not only from the transcendental meanings of these terms but also from specific perfections: namely, truth of intellect and moral goodness; shows that the order of these divine names in the two Summae better reflects the order of the transcendentals as received perfections than their more familiar order in the abstract. (shrink)

¿Cómo reacciona la ciudadanía en un sistema político polarizado ante una emergencia como la pandemia de la COVID-19?, ¿cómo procesa la ciudadanía las narrativas polarizadas que están en conflicto?, y ¿qué imagen se forman de la gestión política de la amenaza de la pandemia? En EE. UU, hay que retrotraerse a la epidemia de la polio de hace 70 años para encontrar una emergencia sanitaria como la pandemia de la COVID-19. No obstante, hay importantes diferencias; en la década de 1950, (...) el clima político de los EE.UU. era mucho más uniforme y consensuado que el actual, profundamente dividido y polarizado. Este trabajo utiliza datos de un estudio longitudinal realizado durante 35 años en personas jóvenes de la Generación X (ahora ya en la cuarentena) y datos provenientes de encuestas realizadas en Estados Unidos durante tres décadas, con el propósito de examinar los patrones de adquisición de la información en la comprensión de una nueva amenaza. Nuestro análisis de los últimos 35 años de la Generación X muestra que, en las elecciones de 2020, el factor predictivo del voto individual que tuvo más fuerza fue una ideología política polarizada, pero, aquellas personas que contaban con una mejor comprensión del coronavirus fueron más críticas con la gestión de la pandemia de la COVID-19 que realizó la administración de Donald Trump y estuvieron más predispuestas a votar por Joe Biden que a votar por Trump. Un análisis paralelo de una muestra probabilística representativa de personas adultas estadounidenses en 2020 reveló el mismo patrón de influencia del partidismo ideológico, la comprensión del coronavirus y la evaluación de la administración de Trump. Los resultados muestran que el conocimiento y la comprensión pueden proporcionar un efecto moderador crítico en un sistema político polarizado y dividido. (shrink)

It is shown, assuming the linear case of Schinzel's Hypothesis, that the first-order theory of the structure $\langle \omega; +, P\rangle$ , where P is the set of primes, is undecidable and, in fact, that multiplication of natural numbers is first-order definable in this structure. In the other direction, it is shown, from the same hypothesis, that the monadic second-order theory of $\langle\omega; S, P\rangle$ is decidable, where S is the successor function. The latter result is proved using a general (...) result of A. L. Semenov on decidability of monadic theories, and a proof of Semenov's result is presented. (shrink)

An important factor in judging whether two retinal images arise from the same object viewed from different positions may be the presence of certain properties or cues that are 'qualitative invariants' with respect to the natural transformations, particularly affine transformations, associated with changes in viewpoint. To test whether observers use certain affine qualitative cues such as concavity, convexity, collinearity, and parallelism of the image elements, a 'same-different' discrimination experiment was carried out with planar patterns that were defined by four points (...) either connected by straight line segments (line patterns) or marked by dots (dot patterns). The first three points of each pattern were generated randomly; the fourth point fell on their diagonal bisector. According to the position of that point, the patterns were concave, triangular (three points being collinear), convex, or parallel sided. In a 'same' trial, an affine transformation was applied to one of two identical patterns; in a 'different' trial, the affine transformation was applied after the point lying on the diagonal bisector was perturbed a short, fixed distance along the bisector, inwards for one pattern and outwards for the other. Observers' ability to discriminate 'same' from 'different' pairs of patterns depended strongly on the position of the fourth, displaced, point: performance varied rapidly when the position of the displaced point was such that the patterns were nearly triangular or nearly parallel sided, consistent with observers using the hypothesised qualitative cues. The experimental data were fitted with a simple probabilistic model of discrimination performance that used a combination of these qualitative cues and a single quantitative cue. (shrink)

Recurrent, unvarying, and seemingly purposeless patterns of action and cognition are part of normal development, but also feature prominently in several neuropsychiatric conditions. Repetitive stereotyped behaviors can be viewed as exaggerated forms of learned habits and frequently correlate with alterations in motor, limbic, and associative basal ganglia circuits. However, it is still unclear how altered basal ganglia feedback signals actually relate to the phenomenological variability of RSBs. Why do behaviorally overlapping phenomena sometimes require different treatment approaches−for example, sensory shielding strategies (...) versus exposure therapy for autism and obsessive-compulsive disorder, respectively? Certain clues may be found in recent models of basal ganglia function that extend well beyond action selection and motivational control, and have implications for sensorimotor integration, prediction, learning under uncertainty, as well as aesthetic learning. In this paper, we systematically compare three exemplary conditions with basal ganglia involvement, obsessive-compulsive disorder, Parkinson’s disease, and autism spectrum conditions, to gain a new understanding of RSBs. We integrate clinical observations and neuroanatomical and neurophysiological alterations with accounts employing the predictive processing framework. Based on this review, we suggest that basal ganglia feedback plays a central role in preconditioning cortical networks to anticipate self-generated, movement-related perception. In this way, basal ganglia feedback appears ideally situated to adjust the salience of sensory signals through precision weighting of new sensory information, relative to the precision of predictions based on prior generated models. Accordingly, behavioral policies may preferentially rely on new data versus existing knowledge, in a spectrum spanning between novelty and stability. RSBs may then represent compensatory or reactive responses, respectively, at the opposite ends of this spectrum. This view places an important role of aesthetic learning on basal ganglia feedback, may account for observed changes in creativity and aesthetic experience in basal ganglia disorders, is empirically testable, and may inform creative art therapies in conditions characterized by stereotyped behaviors. (shrink)

The complexity of biobank research raises concerns about individuals’ understanding of the information conveyed in the consent process for such research.. We report the results of a qualitative, cognitive interview study with an ethnically, linguistically, and educationally diverse sample of 43 respondents to assess the clarity and utility of a multimedia tool developed for a biobank. Using weighted randomization, respondents were assigned to either view the multimedia tool or read a written consent document . The study illustrates the utility of (...) cognitive interviews for gaining insights from prospective research participants about the clarity of informed consent tools. Findings suggest that a multimedia tool is useful for communicating key messages but should be combined with a written consent document and personal interaction with the study staff. We recommend that the potential value of multimedia tools should be more rigorously tested in a randomized controlled trial. (shrink)