Psychophysiological training of operators in adaptive biofeedback cardiorhythm control

A new individual computerized technique for psychophysiological training of operators before performing psychomotor activity on a computer model (psychomotor concentration and spatial orientation test) was developed. Qualitative criteria for the prediction of safe operator activity were formulated. Preliminary testing of operators' activity quality showed great dispersion of individual results: The amount of errors ranged from 0 to 56 and the rate of information processing varied from 1.01 up 3.56 bit/s. Subjects with initially identified respiratory sinus arrhythmia or synchronization caused by respiratory movements committed minimal recognition errors in initial stages at a high rate of information processing. The number of errors remained unchanged after the biofeedback cardio-training cycle, with the rate of information processing increasing noticeably. Subjects without inherent harmonics developed harmonics after sessions of cardiorhythm biofeedback control, and their operator activity quality improved significantly, making fewer mistakes and increasing the rate of information processing. Biofeedback control led not only to the restoration of respiratory sinus arrhythmia, a favorable diagnostic sign, as revealed by cardiorhythmograms, but also resulted in improvement of the quality of operator activity.     

On Walter Dubislav

This paper outlines the intellectual biography of Walter Dubislav. Besides being a leading member of the Berlin Group headed by Hans Reichenbach, Dubislav played a defining role as well in the Society for Empirical/Scientific Philosophy in Berlin. A student of David Hilbert, Dubislav applied the method of axiomatic to produce original work in logic and formalist philosophy of mathematics. He also introduced the elements of a formalist philosophy of science and addressed more general problems concerning the substantiation of human knowledge. What set Dubislav apart from the other logical empiricists was his expertise in the history of logic and exact philosophy which enabled him to elucidate and advance the thinking in both disciplines. In the realm of logic proper, Dubislav is best known for his pioneering work in theory of definitions. What is more, he did original work on the so called ‘quasi truth-tables’ which aided Reichenbach in developing his logic of probability. Dubislav also elaborated an influential logic of moral statements.     

Categoricity Spectra for Polymodal Algebras

We investigate effective categoricity for polymodal algebras (i.e., Boolean algebras with distinguished modalities). We prove that the class of polymodal algebras is complete with respect to degree spectra of nontrivial structures, effective dimensions, expansion by constants, and degree spectra of relations. In particular, this implies that every categoricity spectrum is the categoricity spectrum of a polymodal algebra.     

Object-Relations and Cultural Narratives in the Analysis of Racism: Theorizing Subjectivity After Klein and Lacan

This paper discusses two approaches to racism in the psychoanalytic literature—one based on Kleinian object-relations, and another based on Lacan’s theory of language as central to subjectivity. It is argued that the Kleinian method relies on drawing parallels between object-relations at the psychological level and social relations in the external world, and this limits its understanding to a narrow catalogue of psychoanalytic concepts. A Lacanian/post-Lacanian approach begins from the structure of cultural narratives and is more sensitive to social variations. Using examples from anthropology, it is argued that both theories are crucial for a robust analysis of racism.     

Amount of Learning and Signal Stability Modulate Emergence of Structure and Iconicity in Novel Signaling Systems

Iterated language learning experiments that explore the emergence of linguistic structure in the laboratory vary considerably in methodological implementation, limiting the generalizability of findings. Most studies also restrict themselves to exploring the emergence of combinatorial and compositional structure in isolation. Here, we use a novel signal space comprising binary auditory and visual sequences and manipulate the amount of learning and temporal stability of these signals. Participants had to learn signals for meanings differing in size, shape, and brightness; their productions in the test phase were transmitted to the next participant. Across transmission chains of 10 generations each, Experiment 1 varied how much learning of auditory signals took place, and Experiment 2 varied temporal stability of visual signals. We found that combinatorial structure emerged only for auditory signals, and iconicity emerged when the amount of learning was reduced, as an opportunity for rote-memorization hampers the exploration of the iconic affordances of the signal space. In addition, compositionality followed an inverted u-shaped trajectory raising across several generations before declining again toward the end of the transmission chains. This suggests that detection of systematic form-meaning linkages requires stable combinatorial units that can guide learners toward the structural properties of signals, but these combinatorial units had not yet emerged in these unfamiliar systems. Our findings underscore the importance of systematically manipulating training conditions and signal characteristics in iterated language learning experiments to study the interactions between the emergence of iconicity, combinatorial and compositional structure in novel signaling systems.     

From Incommensurability to Dialogue: A Response to David Lichtenstein

This response to David Lichtenstein (this issue) explores the opportunities and challenges that arise from the conceptual pluralism within the field of psychoanalysis. It argues that the Kleinian and Lacanian theoretical frameworks are in many ways incommensurable, but it also maintains that this should not translate into an either/or approach that privileges one framework over the other. Acknowledging the foundational differences between Kleinian and Lacanian theories should not forestall the possibility of productive and mutually beneficial dialogue carried out in good faith.     

FREGE IN CONTEXT

Although the Cambridge Professor of Mental Philosophy and Logic James Ward was once one of Britain's most highly regarded Psychologists and Philosophers, today his work is unjustly neglected. This is because his philosophy is frequently misrepresented as a reactionary anti-naturalistic idealist theism. In this article, I argue, first, that this reading is false, and that by viewing Ward through the lens of pragmatism we obtain a fresh interpretation of his work that highlights the scientific nature of his philosophy and his original and promising theory of ‘evolutionary Kantianism’, with its applications to the philosophy of mind, epistemology, and metaphysics. Second, I show that reading Ward as a pragmatist provides us with (1) a more complex history of the reception of pragmatism at Cambridge at the turn of the twentieth century than the straightforwardly hostile one traditionally told; and (2) a more detailed understanding of the wide range of philosophical problems to which pragmatism was deemed at this time to have an appropriate application.     

One-minute time interval estimation as a novel potent indicator of emotional concerns in cancer patients prior to starting chemotherapy

Our study explored the potential relationship between time estimation and issues that lead to distress in cancer patients prior to starting chemotherapy. Time estimation was assessed in 375 chemonaïve patients with solid tumors by evaluating each subject’s prospective estimation of how quickly one minute passed compared to the actual time. The median estimated value (40 s) was used to stratify the patients into the two categories of fast and slow time estimation. The National Comprehensive Cancer Network Distress Thermometer (DT) and Problem List (PL) were used at the beginning of treatment to evaluate levels of distress and patient concerns. A fast time estimation correlated significantly with gender and items reported in the emotional domain on the PL. Females exhibited significantly faster time estimation than males. Patients who reported fear, worry and loss of interest in usual activities estimated the one-minute interval significantly faster than patients who did not report such items. In the multivariate logistic regression model, patients who experienced fast time estimation had a higher risk of reporting items in the emotional domain. Time estimation is a novel potent indicator of emotional concerns on the PL. This test is an easily performed, time-saving, nonintrusive, ultrashort screening tool that is suitable even for patients who are not willing to reveal their emotional status via direct questionnaires.

     

Political Philosophy in Bulgaria – a Fresh Start?

Studies in East European Thought -