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161.
Visual attention can be oriented toward a spatial location in the visual field exogenously by an abrupt onset of a peripheral cue. In a series of behavioral studies on exogenous orienting of attention with a double-cue paradigm, we demonstrated a functional subdivision of perceptual space in the visual field. Specifically, inhibition of return (IOR) is much stronger at periphery relative to perifoveal visual field up to approximately 15° eccentricity, suggesting two dissociable functional areas in the visual field. To further investigate the generality of this functional subdivision of the visual field, we measured IOR effects with another single-cue paradigm and applied a very short cue-target interval that was typically anticipated not to observe any inhibitory effect at all. Consistent with this expectation, no IOR effects at the eccentricities up to 15° were observed. However, significant IOR effects beyond 15° eccentricities were consistently demonstrated. These results not only revealed an early onset of IOR for more peripheral stimuli, but also confirmed that the perceptual space in the visual field is not homogeneous but underlies a functional subdivision with a border of ca. 15° eccentricity. 相似文献
162.
The brain often integrates multisensory sources of information in a way that is close to the optimal according to Bayesian principles. Since sensory modalities are grounded in different, body-relative frames of reference, multisensory integration requires accurate transformations of information. We have shown experimentally, for example, that a rotating tactile stimulus on the palm of the right hand can influence the judgment of ambiguously rotating visual displays. Most significantly, this influence depended on the palm orientation: when facing upwards, a clockwise rotation on the palm yielded a clockwise visual judgment bias; when facing downwards, the same clockwise rotation yielded a counterclockwise bias. Thus, tactile rotation cues biased visual rotation judgment in a head-centered reference frame. Recently, we have generated a modular, multimodal arm model that is able to mimic aspects of such experiments. The model co-represents the state of an arm in several modalities, including a proprioceptive, joint angle modality as well as head-centered orientation and location modalities. Each modality represents each limb or joint separately. Sensory information from the different modalities is exchanged via local forward and inverse kinematic mappings. Also, re-afferent sensory feedback is anticipated and integrated via Kalman filtering. Information across modalities is integrated probabilistically via Bayesian-based plausibility estimates, continuously maintaining a consistent global arm state estimation. This architecture is thus able to model the described effect of posture-dependent motion cue integration: tactile and proprioceptive sensory information may yield top–down biases on visual processing. Equally, such information may influence top–down visual attention, expecting particular arm-dependent motion patterns. Current research implements such effects on visual processing and attention. 相似文献
163.
Human beings seem to be able to recognize emotions from speech very well and information communication technology aims to implement machines and agents that can do the same. However, to be able to automatically recognize affective states from speech signals, it is necessary to solve two main technological problems. The former concerns the identification of effective and efficient processing algorithms capable of capturing emotional acoustic features from speech sentences. The latter focuses on finding computational models able to classify, with an approximation as good as human listeners, a given set of emotional states. This paper will survey these topics and provide some insights for a holistic approach to the automatic analysis, recognition and synthesis of affective states. 相似文献
164.
Andrew F. Smith 《International Journal for Philosophy of Religion》2012,71(3):205-219
Stephen Carter argues that biblical literalism is predicated on an epistemological position drastically different than that maintained by mainstream scientists inasmuch as it operates on the basis of a “hermeneutic of inerrancy” with respect to the ideas laid out in the Bible. By relying on considerations offered by Charles Taylor and recent sociological studies, I contend that Carter’s thesis is incorrect. The divide between proponents and opponents of biblical literalism is ethical rather than epistemological. Beyond the philosophical implications of my contention, this displays that deliberative engagement between these parties—which depends on shared epistemological norms—is possible in principle. 相似文献
165.
Brad J. Kallenberg 《International Journal for Philosophy of Religion》2012,71(1):55-73
Careful readers of Wittgenstein tend to overlook the significance his engineering education had for his philosophy; this despite
Georg von Wright’s stern admonition that “the two most important facts to remember about Wittgenstein were, firstly, that
he was Viennese, and, secondly, that he was an engineer.” Such oversight is particularly tempting for those of us who come
to philosophy late, having first been schooled in math and science, because our education tricks us into thinking we understand
engineering by extension. But we do not. I will illustrate this common tendency to misread Wittgenstein by examining three
engineering concepts that have little significance for science but played important roles in Wittgenstein’s philosophical
thinking. These are: method of projection, dynamical similarity, and satisfactoriness. The upshot of this analysis will be
a strong challenge to the myth of his putative fideism because neither fideism nor its contrary simply would have occurred
to Wittgensteinthe-engineer. 相似文献
166.
Mikel Burley 《International Journal for Philosophy of Religion》2012,71(1):21-37
This paper critically discusses D. Z. Phillips’ use of literary works as a resource for philosophical reflection on religion.
Beginning by noting Phillips’ suggestion, made in relation to Waiting for Godot, that the possibilities of meaning that we see in a literary work can reveal something of our own religious sensibility,
I then proceed to show what we learn about Phillips from his readings of certain works by Larkin, Tennyson, and Wharton. Through
exploring alternative possible readings, I argue that, although Phillips’ discussions are of considerable philosophical interest,
they undermine his claim to be deploying a purely contemplative hermeneutical method. 相似文献
167.
The standard semantic definition of consequence with respect to a selected set X of symbols, in terms of truth preservation under replacement (Bolzano) or reinterpretation (Tarski) of symbols outside X, yields a function mapping X to a consequence relation \(\Rightarrow_X\). We investigate a function going in the other direction, thus extracting the constants of a given consequence relation, and we show that this function (a) retrieves the usual logical constants from the usual logical consequence relations, and (b) is an inverse to—more precisely, forms a Galois connection with—the Bolzano–Tarski function. 相似文献
168.
This paper begins an analysis of the real line using an inconsistency-tolerant (paraconsistent) logic. We show that basic field and compactness properties hold, by way of novel proofs that make no use of consistency-reliant inferences; some techniques from constructive analysis are used instead. While no inconsistencies are found in the algebraic operations on the real number field, prospects for other non-trivializing contradictions are left open. 相似文献
169.
Carlo Proietti 《Journal of Philosophical Logic》2012,41(5):877-900
The present work is motivated by two questions. (1) What should an intuitionistic epistemic logic look like? (2) How should one interpret the knowledge operator in a Kripke-model for it? In what follows we outline an answer to (2) and give a model-theoretic definition of the operator K. This will shed some light also on (1), since it turns out that K, defined as we do, fulfills the properties of a necessity operator for a normal modal logic. The interest of our construction also lies in a better insight into the intuitionistic solution to Fitch’s paradox, which is discussed in the third section. In particular we examine, in the light of our definition, DeVidi and Solomon’s proposal of formulating the verification thesis as \(\phi \rightarrow \neg \neg K\phi\). We show, as our main result, that this definition excapes the paradox, though it is validated only under restrictive conditions on the models. 相似文献
170.
The aim of this study was to investigate the frequency with which cancer patients engage in religious and spiritual practices, the methods used, the reasons for such a search, and the levels of depression and hopelessness in patients who seek spiritual assistance. One hundred and ten radiation oncology patients, who gave voluntary informed consent were included in this study. Questionnaires about religious and spiritual practices were administered, along with the Beck Depression and Beck Hopelessness scales. Twenty percent of the patients preferred spiritual practices. Female gender, lower education levels, and higher depression and hopelessness scores were associated with this preference. The frequency of depression was 18.2%, and the frequency of hopelessness was 20.9%. A significant number of cancer patients engaged in religious and spiritual practices. We recommend that practitioners offer their patients brief but sufficient information about religious and spiritual support and determine their patients’ depression and hopelessness levels. 相似文献