Spatial orienting in the visual field: a unified perceptual space?

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.     

Modeling body state-dependent multisensory integration

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.     

On the recognition of emotional vocal expressions: motivations for a holistic approach

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.     

Secularity and biblical literalism: confronting the case for epistemological diversity

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.     

Rethinking fideism through the lens of Wittgenstein’s engineering outlook

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.     

D. Z. Phillips’ contemplations on religion and literature

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.     

Thinking Outside the Clocks: The Effect of Layered‐Task Time on the Creative Climate of Meetings

The turbulence of the new economy puts demands on organizations to respond rapidly, flexibly and creatively to changing environments. Meetings are one of the organizational sites in which organizational actors “do” creativity; interaction in groups can be an important site for generating creative ideas and brainstorming. Additionally, Blount (2004) demonstrated the importance of organizational temporalities for group performance. We draw on both of these literatures and examine how temporal structures influence the climate for creativity, or the extent to which creativity is fostered, within groups. Specifically, we develop a hypothesis linking organization‐ and job‐level temporal structures to the extent to which managers structure meetings with a climate supportive of creativity. Our results demonstrate that a nuanced relationship exists between temporal structures and creative climate such that certain temporal structures appear to either enhance or decrease the creative climate of meetings. We end with a discussion of the implications of the findings for management.     

Is Low Anxiety Part of the Psychopathy Construct?

Low anxiety has traditionally been considered a feature of psychopathy, but there has been mixed research support for this conceptualization. We investigated the PPI-R-SF Stress Immunity subscale (a measure of low anxiety) in relation to 2 widely used self-report psychopathy scales in a sample of 346 undergraduate students. Results indicated that PPI-R-SF Stress Immunity was nearly unrelated to other indicators of psychopathy, showing a near-zero loading on the common psychopathy factor defined jointly by the scales of the PPI-R-SF and SRP-III. Stress Immunity also showed a pattern of personality and temperament correlates much different from those of other psychopathy subscales. Finally, Stress Immunity had a slight negative correlation with self-reports of diverse antisocial acts. These results suggest that despite its historical importance in the conceptualization of psychopathy, low anxiety is likely not a core feature of psychopathy.     

Do nice guys--and gals--really finish last? The joint effects of sex and agreeableness on income

Sex and agreeableness were hypothesized to affect income, such that women and agreeable individuals were hypothesized to earn less than men and less agreeable individuals. Because agreeable men disconfirm (and disagreeable men confirm) conventional gender roles, agreeableness was expected to be more negatively related to income for men (i.e., the pay gap between agreeable men and agreeable women would be smaller than the gap between disagreeable men and disagreeable women). The hypotheses were supported across 4 studies. Study 1 confirmed the effects of sex and agreeableness on income and that the agreeableness-income relationship was significantly more negative for men than for women. Study 2 replicated these results, controlling for each of the other Big Five traits. Study 3 also replicated the interaction and explored explanations and paradoxes of the relationship. A 4th study, using an experimental design, yielded evidence for the argument that the joint effects of agreeableness and gender are due to backlash against agreeable men.     

Consequence Mining

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.