We recently described a novel form of stress‐associated bidirectional plasticity at GABA synapses onto hypothalamic parvocellular neuroendocrine cells (PNCs), the apex of the hypothalamus‐pituitary‐adrenal axis. This plasticity may contribute to neuroendocrine adaptation. However, this GABA synapse plasticity likely does not translate into a simple more and less of inhibition because the ionic driving force for Cl−, the primary charge carrier for GABAA receptors, is dynamic. Specifically, stress impairs a Cl− extrusion mechanism in PNCs. This not only renders the steady‐state GABA (...) response less hyperpolarizing but also makes PNCs susceptible to the activity‐dependent accumulation of Cl−. Accordingly, GABA synapse plasticity impacts both the robustness of GABA voltage response and dynamic Cl− loading, imposing nonlinear influences on PNC excitability during circuit activities. This theoretical consideration predicts roles for GABA transmission far more versatile than canonical inhibition. We propose potential impacts of GABA synapse plasticity on the experience‐dependent fine‐tuning of neuroendocrine stress responses. (shrink)

Many years the academic community has been discussing issues of a universal metalanguage as the general conceptual framework of modern social and humanitarian research, especially of philosophy. The article questions the claim that the language of Western philosophy was already accepted as a unified tool in the 20th century. The peculiarities of perception and further application of Western philosophical terminology in Japan in late 19th – first half of the 20th centuries are investigated here as a factual evidence base of (...) argumentation. Special attention is given to examples of translation and interpretation of some concepts of Western origin, such as metaphysics, ethics, logic, substance, subject, etc., as observed in the works of eminent thinkers Nishi Amane, Inoue Tetsujiro, Nishida Kitaro, and Watsuji Tetsuro. The paper provides examples of new original concepts developed by modern Japanese philosophers, such as Kimura Bin, Hiromatsu Wataru et al. The author concludes that the general conceptual framework that modern philosophy operates with is a very dynamic and open system, capable of transforming in different cultural contexts and in keeping with newly emerging issues that require analysis. The article identifies factors that provide philosophical communication between different cultures at the conceptual level, that is, the presence of a common circle of problems and presence of partial overlap between the key concepts. The author poses the problem of the emergence of new approaches and ideas in a situation of “conflicting interpretations,” or incomplete equivalence of similar notions when used by the parties in a dialogue, casting doubt on possibility, necessity and reasonability of exact reproduction of meanings and “complete domestication” in other cultures. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Ōmori Shōzō and Kotodama Theory: How Can We Overcome the Need for Bodily Encounters?Maki SatoIntroductionŌmori Shōzō is known for his theory of tachi-araware monism. Tachiaraware monism is his attempted counter-argument to the Cartesian dualism of the object–subject divide, or in his words, a divide between physical (butsuri, mono, science, object) and non-physical consciousness (ishiki, koto, perception, incident), perception (chikaku, 知覚) and conception (shikō, 思考). His concept of Kasane-egaki is (...) also often cited as a core concept of his theory of time.1 The main aim of this paper is to first overview the works of Ōmori since there is only a limited amount of his translated work so far.2 Consecutively, the paper focuses on Ōmori’s theory of kotodama and its related arguments with an intention to expand his concept of Kowaburi into the ethics of online encounters during the pandemic.The world in 2020 was suddenly forced to face the pandemic caused by COVID-19. What COVID-19 alerted us to is tremendous, and there are countless problems that the invisible virus has revealed. Among those are the hidden problems of contemporary society, not limited to the discrimination among races, gender, and jobs (white-collars versus essential workers), the problem of zoonosis, and the related environmental problems (climate change and intrusion into wild nature) caused by over-exploitation of nature. In developed countries, most students and those serving as intellectual workers face their daily lives being overly occupied with online lectures and meetings. COVID-19 worked to normalize remote work, which further normalized and forced our everyday life to shift to cyberspace. [End Page 101]In introducing and overviewing Ōmori’s philosophy, this paper attempts to see the current situation through Ōmori’s philosophy to draw out some ethical implications related to non-physical online encounters and how we can perceive human interactions and relationships under such conditions. Under the constraints caused by COVID-19, humans’ limitless desires to interact with others are expanding more so to the sphere of cyberspace, leading to technological development, such as VR. In short, first, the paper overviews Ōmori’s philosophy. Second, through the overview of Ōmori’s philosophy, the paper seeks adaptable philosophy of his that may work as soft binding grounding ethics for cyberspace encounters where substantial bodily encounters are void. In doing so, the paper intends to draw out weak binding ethics implied in Ōmori’s philosophy that may work to empathetically engage with others in cyberspace where embodied encounters with others are dissolved.Ōmori Shōzō and His Philosophy: A Short Introduction and OverviewIn his short essay introducing the Japanese philosophy of the 1970s, Yasuo Kobayashi coined the term “Komaba quartet” by selecting four active eminent philosophers based on the Komaba campus at the University of Tokyo.3 Among them is Ōmori Shōzō (1921–97), aligning with Hiromatsu Wataru (1933–94), Sakabe Megumi (1936–2009), and Inoue Tadashi (1926–2014). Ōmori is the oldest of the Komaba quartet and received higher education before World War II. He served at the Naval Technology Institute Mitaka Laboratory during the war with his physics degree from the Tokyo Imperial University.4 After the war, he studied philosophy at the University of Tokyo with an interest in phenomenology, leading him to study at Harvard and Stanford in the United States.During his professorship at the University of Tokyo, he inspired countless students who are now leading the philosophy academy in Japan, such as Noe Keiichi (1949–) and Noya Shigeki (1954–). In the round-table discussion titled “Explanatory Round-Table on the Charm of Ōmori’s Philosophy,” four of his former students—Iida Takashi and Tanji Nobuharu, in addition to Noe and Noya—worked on selecting his works. It is impressive to read that all four [End Page 102] of them recall how exciting and inspiring it was to take his classes.5 Iida recalls that Ōmori’s classes were exceptional since philosophy courses were all about reading, with might and main, the texts written in a language other than Japanese at the University of Tokyo. However, Ōmori, with his postwar American education, welcomed discussion with the students and was keen on questioning... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Guest Editor’s IntroductionNakajima Takahiro 「東京学派」とは聞きなれない名称であろう。日本研究において「京都学派」は大変よく知られている。たとえ「京都学派」が、「無の論理は論理ではない」と述べた上で、戸坂潤が発明した批判的な概念であったとしても 、現在ではそれは西田幾多郎や田辺元を中心とした一大哲学運動として世界的に認知されている。ところが、西田にしても田辺にしてももともとは東京帝国大学で学んだ学生であった。また、戦前においては、井上哲次郎か ら桑木厳翼へと続く東京帝国大学哲学科の流れは、当時の社会状況と相互に影響しあって、一定の意義を示していたのである。また、大森荘蔵、廣松渉、坂部恵といった戦後の東京大学の哲学者たちは、「京都学派」の問題 系を乗り越えることを重視していた。 この特別号では、発見的概念として「東京学派」を用いて、戦前・戦後におけるその意義と広がりを探究することにした。それは東京大学もしくは東京帝国大学に限定されたものではなく、それ以外の東京圏の大学との相互 交流も含まれるものである。「京都学派」に対しては、政治との距離をどう測るかがしばしば議論されてきたが、「東京学派」は政治により密着したものである。日本の近代の哲学の有している政治性そして倫理性を考える のであれば、やはり「東京学派」の議論は避けて通る ことのできないものである。 無論、「学派」というほどのまとまりを「東京学派」が有しているわけではないことも確かである。西田幾多郎が「京都学派」で果たした中心性は、「東京学派」にはない。そこで、トマス・カスリスが示唆するように、「 学派」の代わりに「サークル」や「スタイル」という言葉を使った方がより正確かもしれない。それでも、あえて「東京学派」と呼ぶのは、「京都学派」に比べて関心を持たれることの少ない、しかし当時は圧倒的な影響力 を有し、戦後決定的に忘却されていった東京の哲学者たちに光をあて、近代日本の哲学の総体を明らかにしたいからである。「東京学派」の研究は緒についたばかりである。今後、国際的な研究の高まりを期待しながら擱筆 する。The “Tokyo School” may be an unfamiliar term to readers. The Kyoto School is very well known in Japanese studies. Even if the Kyoto School is a critical concept invented by Tosaka Jun, who stated [End Page 2] that “the logic of nothingness is not logic,” it is now recognized worldwide as a major philosophical movement led by Nishida Kitarō and Tanabe (...) Hajime. However, both Nishida and Tanabe were originally students at Tokyo Imperial University. In addition, before the war, the output of the Department of Philosophy at Tokyo Imperial University, from Inoue Tetsujirō to Kuwaki Gen’yoku, had a certain significance because it interacted with the social conditions of the time. In addition, postwar philosophers at the University of Tokyo, such as Ōmori Shōzō, Hiromatsu Wataru, and Sakabe Megumi emphasized overcoming the problematics of the Kyoto School.In this special issue, we use the Tokyo School as a heuristic concept to explore its significance and spread in the prewar and postwar periods. It is not limited to the University of Tokyo or Tokyo Imperial University but includes interactions with other universities in the Tokyo area. While the Kyoto School has often been discussed in terms of how to measure its distance from politics, the Tokyo School is more closely connected to politics. If we consider the political and ethical dimensions of modern Japanese philosophy, we cannot avoid discussing the Tokyo School.Of course, it is true that the Tokyo School is not as coherent as a “school.” The central role that Nishida fulfilled in the Kyoto School is perhaps lacking in the Tokyo School. Therefore, as Thomas P. Kasulis suggests, it might be more accurate to use the term “circle” or “style” instead of “school.” Nevertheless, I dare to call it the Tokyo School because I would like to shed light on the Tokyo philosophers who were less popular than those of the Kyoto School but whose influence was overwhelming at the time and who were definitively forgotten after the war, so as to clarify the totality of philosophy in modern Japan.Research on the Tokyo School has only just begun. I am writing this introductory note in anticipation of further international research on the Tokyo School. [End Page 3]Copyright © 2023 State University of New York Press... (shrink)

Long before the origins of agriculture human ancestors had expanded across the globe into an immense variety of environments, from Australian deserts to Siberian tundra. Survival in these environments did not principally depend on genetic adaptations, but instead on evolved learning strategies that permitted the assembly of locally adaptive behavioral repertoires. To develop hypotheses about these learning strategies, we have modeled the evolution of learning strategies to assess what conditions and constraints favor which kinds of strategies. To build on prior (...) work, we focus on clarifying how spatial variability, temporal variability, and the number of cultural traits influence the evolution of four types of strategies: (1) individual learning, (2) unbiased social learning, (3) payoff-biased social learning, and (4) conformist transmission. Using a combination of analytic and simulation methods, we show that spatial—but not temporal—variation strongly favors the emergence of conformist transmission. This effect intensifies when migration rates are relatively high and individual learning is costly. We also show that increasing the number of cultural traits above two favors the evolution of conformist transmission, which suggests that the assumption of only two traits in many models has been conservative. We close by discussing how (1) spatial variability represents only one way of introducing the low-level, nonadaptive phenotypic trait variation that so favors conformist transmission, the other obvious way being learning errors, and (2) our findings apply to the evolution of conformist transmission in social interactions. Throughout we emphasize how our models generate empirical predictions suitable for laboratory testing. (shrink)

Emotional processing without conscious awareness plays an important role in human social interaction. Several behavioral studies reported that subliminal presentation of photographs of emotional facial expressions induces unconscious emotional processing. However, it was difficult to elicit strong and robust effects using this method. We hypothesized that dynamic presentations of facial expressions would enhance subliminal emotional effects and tested this hypothesis with two experiments. Fearful or happy facial expressions were presented dynamically or statically in either the left or the right visual (...) field for 20 (Experiment 1) and 30 (Experiment 2) ms. Nonsense target ideographs were then presented, and participants reported their preference for them. The results consistently showed that dynamic presentations of emotional facial expressions induced more evident emotional biases toward subsequent targets than did static ones. These results indicate that dynamic presentations of emotional facial expressions induce more evident unconscious emotional processing. (shrink)

The conflict between Platonic realism and Constructivism marks a watershed in philosophy of mathematics. Among other things, the controversy over the Axiom of Choice is typical of the conflict. Platonists accept the Axiom of Choice, which allows a set consisting of the members resulting from infinitely many arbitrary choices, while Constructivists reject the Axiom of Choice and confine themselves to sets consisting of effectively specifiable members. Indeed there are seemingly unpleasant consequences of the Axiom of Choice. The non-constructive nature of (...) the Axiom of Choice leads to the existence of non-Lebesgue measurable sets, which in turn yields the Banach-Tarski Paradox. But the Banach-Tarski Paradox is so called in the sense that it is a counter-intuitive theorem. To corroborate my view that mathematical truths are of non-constructive nature, I shall draw upon Gödel’s Incompleteness Theorems. This also shows the limitations inherent in formal methods. Indeed the Löwenheim-Skolem Theorem and the Skolem Paradox seem to pose a threat to Platonists. In this light, Quine/Putnam’s arguments come to take on a clear meaning. According to the model-theoretic arguments, the Axiom of Choice depends for its truth-value upon the model in which it is placed. In my view, however, this is another limitation inherent in formal methods, not a defect for Platonists. To see this, we shall examine how mathematical models have been developed in the actual practice of mathematics. I argue that most mathematicians accept the Axiom of Choice because the existence of non-Lebesgue measurable sets and the Well-Ordering of reals open the possibility of more fruitful mathematics. Finally, after responding to Benacerraf’s challenge to Platonism, I conclude that in mathematics, as distinct from natural sciences, there is a close connection between essence and existence. Actual mathematical theories are the parts of the maximally logically consistent theory that describes mathematical reality. (shrink)

Placing the concept of reification at the centre of Marx’s thought, Hiromatsu demonstrates across a number of areas — history, the understanding of society, and the understanding of philosophy — the philosophical and practical change in worldview which this concept brings about.

In this paper, we consider profit sharing that is one of the reinforcement learning methods. An agent learns a candidate solution of a problem from the reward that is received from the environment if and only if it reaches the destination state. A function that distributes the received reward to each action of the candidate solution is called the reinforcement function. On this learning system, the agent can reinforce the set of selected actions when it gets the reward. And the (...) agent should not reinforce the detour actions. First, we will propose a new constraint equation about reinforcement functions to distribute the reinforcement values on the non-detour actions. If we use the reinforcement function to satisfy the constraint equation, the agent can select the non-detour actions directing to the destination state. Next, it is shown that the reinforcement function can be constant after learning process to suppress the selection of detour actions. Lastly, in computer simulations for maze problems, we show that the learning performance of agents does not depend on the size of environment. (shrink)

In recent years many essays have been made public and various opinions have been advanced on youth. I would like to conceive one of the salient characteristics in the consciousness and the behavior pattern of today's youth as “play-orientedness” and center my discussion on that particular inclination. “Play-orientedness” here is not intended to mean merely “activeness in sports and hobbies,” nor is it synonymous with “pleasure-orientedness.” It is a broader term and is rather close in meaning to what is commonly (...) called “the spirit of play.” We might perhaps define it as “play as a way of life,” or an inclination to introduce elements of “play” into one's daily life and make his actual life “play-like.”. (shrink)

The projection pattern of the existential/uniqueness presupposition of a wh-complement varies depending on the predicate that embeds it. This variation poses problems for existing accounts that treat the presupposition as a semantic contribution of an operator merging with the wh-complement or of the embedding predicate. I propose that the problems can be solved if the existential/uniqueness presupposition is contributed by the propositions corresponding to the answers of the embedded question, under the Hamblin/Karttunen semantics for questions.

The harshness objection is the most important challenge to luck egalitarianism. Very recently, Andreas Albertsen and Lasse Nielsen provided a scrupulous analysis of the harshness objection and claim that only the inconsistency objection—the objection that luck egalitarianism is incompatible with the ideal of basic moral equality—has real bite. I argue that the relevantly construed incoherence objection is not as strong as Albertsen and Nielsen believe. In doing so, first, I show that the deontological luck egalitarian conception of equal treatment does (...) not endorse harsh policies such as excessive responsibility-sensitive healthcare that would be disrespectful to the imprudent. Second, I demonstrate that deontological luck egalitarianism is not troubled by the case that involves a lack of respect for the prudent, which vexes Anderson’s relational egalitarianism that Kasper Lippert-Rasmussen’s argument highlights. I thus claim that the harshness objection is not a truly decisive objection against the luck egalitarian project. (shrink)

Mating activity of a wild Mueller’s gibbon group was observed in the Danum Valley Conservation Area, Sabah, Malaysia. The purpose of this study was to investigate the function of copulation calls in gibbons. The female emitted copulation calls at the time of intromission and pelvic thrusting. Copulation calls were composed of two notes and one of them was sung only while mating. Approximately half of copulation calls were sung near the range boundary. Mating with copulation calls sometimes occurred while singing. (...) According to the model that female copulation calls have evolved under the selective pressures of risk of infanticide and sperm competition, copulation calls should be rare in species with little female promiscuity. As gibbons usually live in pair-living social organization and have a monogamous mating system, no vocal signals by female gibbons are considered to be needed. However, clear copulation calls were emitted by the female. It suggests that the relationship between paired gibbons is unstable. Copulation calls by the female Mueller’s gibbon may function to increase mate guarding and strengthen the pair bond. (shrink)

Objective:This study aimed to investigate the effect of robot-assisted gait training therapy combined with non-invasive brain stimulation on lower limb function in patients with stroke and spinal cord injury.Data sourcesPubMed, Cochrane Central Register of Controlled Trials, Ovid MEDLINE, and Web of Science were searched.Study selectionRandomized controlled trials published as of 3 March 2021. RCTs evaluating RAGT combined with NIBS, such as transcranial direct current stimulation and repetitive transcranial magnetic stimulation, for lower limb function and activities in patients with stroke and (...) SCI were included.Data extractionTwo reviewers independently screened the records, extracted the data, and assessed the risk of bias.Data synthesisA meta-analysis of five studies and risk of bias were conducted. Pooled estimates demonstrated that RAGT combined with NIBS significantly improved lower limb function [standardized mean difference = 0.52; 95% confidence interval = 0.06–0.99] but not lower limb activities. Subgroup analyses also failed to find a greater improvement in lower limb function of RAGT with tDCS compared to sham stimulation. No significant differences between participant characteristics or types of NIBS were observed.ConclusionThis meta-analysis demonstrated that RAGT therapy in combination with NIBS was effective in patients with stroke and SCI. However, a greater improvement in lower limb function and activities were not observed using RAGT with tDCS compared to sham stimulation. (shrink)

Reconsideration-proofness is a solution concept proposed by Kocherlakota :33–54, 1996) for infinite horizon single-player problems in which time inconsistency is important. Kocherlakota’s definition has a limitation: it is not applicable to environments with state variables. The limitation is important because many time-inconsistent problems have state variables. This paper displays a natural generalization of reconsideration-proofness to environments with state variables, and shows that it leads to nonexistence in three examples. Such nonexistence contrasts with the general existence theorem obtained in environments without (...) state variables in Kocherlakota. In the first two examples, existence can be recovered with a modification in the solution concept. In the last example, nonexistence occurs even with the modified solution concept. Insights about further research are derived from these nonexistence results. (shrink)

Profit Sharing is one of the reinforcement learning methods. An agent, as a learner, selects an action with a state-action value and receives rewards when it reaches a goal state. Then it distributes receiving rewards to state-action values. This paper discusses how to set the initial value of a state-action value. A distribution function ƒ( x ) is called as the reinforcement function. On Profit Sharing, an agent learns a policy by distributing rewards with the reinforcement function. On Markov Decision (...) Processes (MDPs), the reinforcement function ƒ( x ) = 1/ L x is useful, and on Partially Observable Markov Decision Processes (POMDPs), ƒ( x ) = 1/ L w is useful, where L is the sufficient number of rules at each state, and W is the length of an episode. If episodes are always long, the value of the reinforcement function is little. So the differences of rule values become little, and the agent learns little by using the roulette selection as an action selection. This problem is called as Learning Speed Problem. If the value of the reinforcement function for an action is very higher than its state-action value, an agent will not select other action. There is a problem when its action is not a optimal action. This problem is called as Past Experiences Problem. This paper shows that both Learning Speed Problem and Past Experiences Problem are caused by the bad setting between the initial values of a state-action values and the function values of a reinforcement function. We propose how to set the initial values of a state-action values at each state. The experiment shows that an agent can learn correctly even if the length of episode is large. And shows the effectiveness on both MDPs and POMDPs. Our proposed method focuses on the initialization of state-action values and does not limit reinforcement functions. So it can apply to any reinforcement function. (shrink)

Understanding whether the long and elaborate songs of male gibbons have syntax and hierarchical structures is an interesting question in the evolution of language, because gibbons are near humans in the phylogenetic tree and a hierarchically organized syntax is considered to be a basic component of human language. We conducted field research at Danum Valley Conservation Area in northern Borneo to test the hypothesis that gibbon songs have syntax and chunks. We followed one Mueller’s gibbon group for 1 week in (...) the dry and rainy seasons every year from 2001 to 2009, collecting vocal and behavioral data. Results show that songs emitted by the studied male gibbon were governed by combinatory rules. Some context-dependent songs had different combinatory rules, although they overlapped with the songs whose contexts were uncertain. The male Mueller’s songs had characteristics that suggest existence of chunk structure. These results provided an important perspective in the study of language origin. (shrink)

of (from Journal of Ethics and Social Philosophy).