Ai Takeuchi

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This study compares neuropsychological functioning in a Japanese schizophrenia spectrum disorder group and a group of healthy Japanese volunteers. Participants were 37 patients diagnosed with schizophrenia, 28 schizotypal patients, and 99 psychiatrically-normal volunteers. A wide range of cognitive measures were examined. All participants completed a(More)
UNLABELLED Aims/Introduction:  It has been suggested that type 2 diabetes is associated with cognitive impairment. We investigated the neuropsychological profile of inpatients with poorly controlled type 2 diabetes and assessed the effects of clinical factors on neuropsychological functions. MATERIALS AND METHODS   Forty-two patients with type 2 diabetes(More)
We are developing robots for inspection of the under floor of houses. The developed robot system is reported in this paper. The mobile robot platform is based on a crawer type robot developed for rescue purposes. As sensors, a pan-tilt-zoom camera, top-view camera and SOKUIKI sensor are used. We constructed a test field and verified the performance of the(More)
This paper introduces a simple experimental tool, Strategic Sophistication Category (STS Category), designed to categorize subjects by whether they do or do not infer others’ actions in strategic situations. We validate the design of STS Category by a novel mix of data on the subjects’ response time, eye movements and stated beliefs in the STS Category. We(More)
We isolate strategic and non-strategic motivations of sanctioning in a repeated public goods game. In two experimental treatments, subjects play the public goods game with the possibility to sanction others. In the STANDARD sanctions treatment, each subject learns about the sanctions received in the same round as they were assigned, but in the SECRET(More)
From the vast amount of research on the public goods game experiment, it became a shared wisdom that a costly punishment of one to others is an effective mechanism to reduce free riders.1 In earlier works of Yamagishi (1986, 1988), a Novel prized work of Ostrom, Walker and Gardner (1992), and seminal works of Fehr and Gächter (2000, 2002), a drastic(More)
We conduct an experimental study on behavior and cognition in prisoner’s dilemmas with and without role-switching from the perspective of inductive game theory (IGT). It is basic for our study that subjects have no prior knowledge about any payoffs, even their own; they may learn them by repeated play. Without role-switching, many subjects learned relevant(More)
This study investigates two centralized punishment institutions for a linear public goods game. These institutions require a certain contribution level, and sanction those players who under-contribute. The two differ in whom, among those who do not meet the requirement receives sanctions. In one institution, all the violators are sanctioned, and in the(More)
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