The Effects of Cranial Orientation on Forensic Frontal Sinus Identification as Assessed by Outline Analyses

The utility of frontal sinuses for personal identification is widely recognized, but potential factors affecting its reliability remain uncertain. Deviations in cranial position between antemortem and postmortem radiographs may affect sinus appearance. This study investigates how slight deviations in orientations affect sinus size and outline shape and potentially impact identification. Frontal sinus models were created from CT scans of 21 individuals and digitally oriented to represent three clinically relevant radiographic views. From each standard view, model orientations were deviated at 5° intervals in horizontal, vertical, and diagonal (e.g., left-up) directions (27 orientations per individual). For each orientation, sinus dimensions were obtained, and outline shape was assessed by elliptical Fourier analyses and principal component (PC) analyses. Wilcoxon sign rank tests indicated that sinus breadth remained relatively stable (p > 0.05), while sinus height was significantly affected with vertical deviations (p < 0.006). Mann–Whitney U tests on Euclidean distances from the PC scores indicated consistently lower intra- versus inter-individual distances (p < 0.05). Two of the three orientations maintained perfect (100%) outline identification matches, while the third had a 98% match rate. Smaller and/or discontinuous sinuses were most problematic, and although match rates are high, practitioners should be aware of possible alterations in sinus variables when conducting frontal sinus identifications.

Dynamical systems implementation of intrinsic sentence meaning

This paper proposes a model for implementation of intrinsic natural language sentence meaning in a physical language understanding system, where 'intrinsic' is understood as 'independent of meaning ascription by system-external observers'. The proposal is that intrinsic meaning can be implemented as a point attractor in the state space of a nonlinear dynamical system with feedback which is generated by temporally sequenced inputs. It is motivated by John Searle's well known (1980) critique of the then-standard and currently still influential Computational Theory of Mind (CTM), the essence of which was that CTM representations lack intrinsic meaning because that meaning is dependent on ascription by an observer. The proposed dynamical model comprises a collection of interacting artificial neural networks, and constitutes a radical simplification of the principle of compositional phrase structure which is at the heart of the current standard view of sentence semantics because it is computationally interpretable as a finite state machine.

All Is Burning: Buddhist Mindfulness as Radical Reflection

This paper consists of two parts. In the first part (Section 1, part of Section 2), I put forward a critique of what I refer to as the ‘received’ or ‘standard’ view of mindfulness in the Western cultural milieu. According to the received view, mindfulness is the acontextual ‘core’ of Buddhism whose determining characteristic is bare (present-oriented, non-judgmental) attention to the flow and content of experience. As noted by many researchers, this conception is in stark contrast to the traditional Buddhist understanding, where mindfulness is not only embedded in a broader context that provides it with a specific philosophico-existential orientation (normative aspect) but is also construed as a reflective activity (noetic aspect). In the second part (part of Sections 2–4), I argue that one of the main issues with the standard view is that it frames experience in terms of what Maurice Merleau-Ponty calls ‘objective thought’ (using objectivity, or ‘thinghood’, as an onto-epistemological standard of reality), which makes the two aspects of the traditional conception (normative and noetic) unintelligible. I then provide an alternative view based on the phenomenological work of Maurice Merleau-Ponty that attempts to integrate the two aspects into a broader conception of experience. By drawing on Merleau-Ponty’s notions of ‘phenomenal field’ and ‘radical reflection’, I argue that mindfulness needs to be understood as a reflective attitude that allows one to discern not only the content but also, and primarily, the context of each experience, and that this also includes seeing itself—the act of reflection—as an act that stems from, and returns back into, the pre-reflective current of existence.

Public justification and expert disagreement over non-pharmaceutical interventions for the COVID-19 pandemic

A wide range of non-pharmaceutical interventions (NPIs) have been introduced to stop or slow down the COVID-19 pandemic. Examples include school closures, environmental cleaning and disinfection, mask mandates, restrictions on freedom of assembly and lockdowns. These NPIs depend on coercion for their effectiveness, either directly or indirectly. A widely held view is that coercive policies need to be publicly justified—justified to each citizen—to be legitimate. Standardly, this is thought to entail that there is a scientific consensus on the factual propositions that are used to support the policies. In this paper, we argue that such a consensus has been lacking on the factual propositions justifying most NPIs. Consequently, they would on the standard view be illegitimate. This is regrettable since there are good reasons for granting the state the legitimate authority to enact NPIs under conditions of uncertainty. The upshot of our argument is that it is impossible to have both the standard interpretation of the permissibility of empirical claims in public justification and an effective pandemic response. We provide an alternative view that allows the state sufficient room for action while precluding the possibility of it acting without empirical support.

The importance of urgency in decision making based on dynamic information

A standard view in the literature is that decisions are the result of a process that accumulates evidence in favor of each alternative until such accumulation reaches a threshold and a decision is made. However, this view has been recently questioned by an alternative proposal that suggests that, instead of accumulated, evidence is combined with an urgency signal. Both theories have been mathematically formalized and supported by a variety of decision-making tasks with constant information. However, recently, tasks with changing information have shown to be more effective to study the dynamics of decision making. Recent research using one of such tasks, the tokens task, has shown that decisions are better described by an urgency mechanism than by an accumulation one. However, the results of that study could depend on a task where all fundamental information was noiseless and always present, favoring a mechanism of non-integration, such as the urgency one. Here, we wanted to address whether the same conclusions were also supported by an experimental paradigm in which sensory evidence was removed shortly after it was provided, making working memory necessary to properly perform the task. Here, we show that, under such condition, participants’ behavior could be explained by an urgency-gating mechanism that low-pass filters the mnemonic information and combines it with an urgency signal that grows with time but not by an accumulation process that integrates the same mnemonic information. Thus, our study supports the idea that, under certain situations with dynamic sensory information, decisions are better explained by an urgency-gating mechanism than by an accumulation one.

Robust effects of working memory demand during naturalistic language comprehension in language-selective cortex

A standard view of human language processing is that comprehenders build richly structured mental representations of natural language utterances, word by word, using computationally costly memory operations supported by domain-general working memory resources. However, three core claims of this view have been questioned, with some prior work arguing that (1) rich word-by-word structure building is not a core function of the language comprehension system, (2) apparent working memory costs are underlyingly driven by word predictability (surprisal), and/or (3) language comprehension relies primarily on domain-general rather than domain-specific working memory resources. In this work, we simultaneously evaluate all three of these claims using naturalistic comprehension in fMRI. In each participant, we functionally localize (a) a language-selective network and (b) a ‘multiple-demand’ network that supports working memory across domains, and we analyze the responses in these two networks of interest during naturalistic story listening with respect to a range of theory-driven predictors of working memory demand under rigorous surprisal controls. Results show robust surprisal-independent effects of word-by-word memory demand in the language network and no effect of working memory demand in the multiple demand network. Our findings thus support the view that language comprehension (1) entails word-by-word structure building using (2) computationally intensive memory operations that are not explained by surprisal. However, these results challenge (3) the domain-generality of the resources that support these operations, instead indicating that working memory operations for language comprehension are carried out by the same neural resources that store linguistic knowledge.Significance StatementThis study uses fMRI to investigate signatures of working memory (WM) demand during naturalistic story listening, using a broad range of theoretically motivated estimates of WM demand. Results support a strong effect of WM demand in language-selective brain regions but no effect of WM demand in “multiple demand” regions that have previously been associated with WM in non-linguistic domains. We further show evidence that WM effects in language regions are distinct from effects of word predictability. Our findings support a core role for WM in incremental language processing, using WM resources that are specialized for language.

Quantum Process Semantics

The paper describes a model of subjective goal-oriented semantics extending standard "view-from-nowhere" approach. Generalization is achieved by using a spherical vector structure essentially supplementing the classical bit with circular dimension, organizing contexts according to their subjective causal ordering. This structure, known in quantum theory as qubit, is shown to be universal representation of contextual-situated meaning at the core of human cognition. Subjective semantic dimension, inferred from fundamental oscillation dynamics, is discretized to six process-stage prototypes expressed in common language. Predicted process-semantic map of natural language terms is confirmed by the open-source word2vec data.

Not-negation revisited: variation between a and any in verb complements in contemporary spoken American English

In not-negated English sentences with indefinite expressions following the verb, there is variation between the indefinite article and any as determiners of nouns. The standard view is that singular count nouns take the indefinite article and singular non-count and plural nouns take any. However, it is possible to encounter examples like it isn't any threat, there isn't any lock or I don't have any problem.The article studies variation between the indefinite article and any as post-verbal determiners of singular nouns in 21,084 not-negated sentences in the spoken component of The Corpus of Contemporary American English, COCA SPOK. The indefinite article is dominant with 90 per cent of the tokens. Variation is extremely rare in sentences with copular be and much more frequent in sentences with existential be and have. Among the reasons for variation between verb types is the use of do-support with have (but not with be). Expressions such as have a job/car/home or there's not a/an with uncontracted not may also prevent the use of any. Variation occurs mostly with abstract nouns such as problem, choice, way, place, reason. This finding is surprising as abstract nouns have rarely been discussed in the literature on varying countability of nouns.

Trust and Distributive Justice in John Locke's Politics of Money

Modern commentators tend to view John Locke's theory of money either in terms of a process of naturalization placing currency completely beyond the realm of politics or as an effort to provide a moral foundation for a convention subject to epistemic instability. This study builds on the latter interpretation but offers an alternative to the standard view that Locke sought to remove monetary policy from the scope of ongoing political deliberation. While Locke emphasized the concept of trust necessary for the networks of credit and economic exchange, his account of money also prioritized prudential judgments and distinct discursive contexts, especially relating to distributive justice. Locke's economic tracts give reason to reconsider his putative role as founder of the “sound money” doctrine and shed light on aspects of his statecraft only partly visible in his more familiar political works.

Flow and the dynamics of conscious thought

The flow construct has been influential within positive psychology, sport psychology, the science of consciousness, the philosophy of agency, and popular culture. In spite of its longstanding influence, it remains unclear [a] how the constituents of the flow state ‘hang together’—how they relate to each other causally and functionally—[b] in what sense flow is an ‘optimal experience,’ and [c] how best to describe the unique phenomenology of the flow state. As a result, difficulties persist for a clear understanding of the flow state’s structure and function. After explicating the standard view of the flow construct (section one), I articulate several basic questions regarding its nature and functional roles (section two), and I argue that these questions are best answered by integrating flow within broader streams of research on the dynamics of thought, on cognitive control resource allocation, and on creative thought (sections three and four).