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241.
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
242.
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
243.
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
244.
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
245.
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
246.
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
247.
Jansen BR van Duijvenvoorde AC Huizenga HM 《Journal of experimental child psychology》2012,111(1):87-100
Decisions can be made by applying a variety of decision-making rules-sequential rules in which decisions are based on a sequential evaluation of choice dimensions and the integrative normative rule in which decisions are based on an integration of choice dimensions. In this study, we investigated the developmental trajectory of such decision-making rules. In the Gambling Machine Task, participants choose between options that differ in three dimensions: frequency of loss, amount of loss, and certain gain. The task was administered to 231 children and adolescents (age range=8-17 years). Latent group analysis of their performance allowed precise classification of the underlying decision rules. The majority of participants used sequential decision rules, and the number of evaluated dimensions in these rules increased with age. Integrative rule use decreased with age. We discuss these results in light of traditional developmental theories and fuzzy trace theory. 相似文献
248.
Linguistic labels affect inductive generalization; however, the mechanism underlying these effects remains unclear. According to one similarity-based model, SINC (similarity, induction, naming, and categorization), early in development labels are features of objects contributing to the overall similarity of compared entities, with early induction being similarity based. If this is the case, then not only identical but also phonologically similar labels may contribute to the overall similarity and thus to induction. These predictions were tested in a series of experiments with 5-year-olds and adults. In Experiments 1-5 participants performed a label extension task, whereas in Experiment 6 they performed a feature induction task. Results indicate that phonological similarity contributes to early induction and support the notion that for young children labels are features of objects. 相似文献
249.
Brown H Weighall A Henderson LM Gareth Gaskell M 《Journal of experimental child psychology》2012,112(1):56-72
Recent studies of adults have found evidence for consolidation effects in the acquisition of novel words, but little is known about whether such effects are found developmentally. In two experiments, we familiarized children with novel nonwords (e.g., biscal) and tested their recognition and recall of these items. In Experiment 1, 7-year-olds were then retested on either the same day or the following day to examine changes in performance after a short delay compared with a longer delay that included sleep. Experiment 2 used two age groups (7- and 12-year-olds), with all participants being retested 24h later. The 12-year-olds accurately recognized the novel nonwords immediately after exposure, as did the 7-year-olds in Experiment 2 (but not in Experiment 1), suggesting generally good initial rates of learning. Experiment 1 revealed improved recognition of the novel nonwords after both short (3- to 4-h) and longer (24-h) delays. In contrast, recall was initially poor but showed improvements only when children were retested 24h later, not after a 3- to 4-h delay. Similar improvements were observed in both age groups despite better overall performance in 12-year-olds. We argue that children, like adults, exhibit offline consolidation effects on the formation of novel phonological representations. 相似文献
250.
Sean P Peterson Anna Ingeborg Petursdottir Claire L Kirk 《Journal of applied behavior analysis》2012,45(3):631-636
We examined whether the results of a response‐restriction analysis (RRA) could be predicted on the basis of response distribution in early sessions, when these sessions indicated interaction with multiple items. Four preschool‐aged children participated. For 3 of the 4 participants, the results from sessions conducted prior to restriction of the first item corresponded closely with results of the full RRA. 相似文献