Attentional selection during preparation of prehension movements

In two experiments coupling between dorsal attentional selection for action and ventral attentional selection for perception during preparation of prehension movements was examined. In a dual-task paradigm subjects had to grasp an X-shaped object with either the left or the right hand's thumb and index finger. Simultaneously a discrimination task was used to measure visual attention prior to the execution of the prehension movements: Mask items transiently changed into distractors or discrimination targets. There was exactly one discrimination target per trial, which appeared at one of the four branch ends of the object. In Experiment 1 target position varied randomly while in Experiment 2 it was constant and known to subjects in each block of trials. In both experiments discrimination performance was significantly better for discrimination target positions at to-be-grasped branch ends than for not-to-be-grasped branch ends. We conclude that during preparation of prehension movements visual attention is largely confined to those parts of an object that will be grasped.     

Material Scarcity: A Reason for Responsibility in Technology Development and Product Design

There are warning signs for impending scarcity of certain technology metals that play a critical role in high-tech products. The scarce elements are indispensable for the design of modern technologies with superior performance. Material scarcity can restrain future innovations and presents therefore a serious risk that must be counteracted. However, the risk is often underrated in the pursuit of technological progress. Many innovators seem to be inattentive to the limitations in availability of critical resources and the possible implications thereof. The present shortages in industrial supply with technology metals may be interpreted as a wake-up call for technology developers to tackle the issue with due consideration. The article reviews the materials scarcity phenomenon from the viewpoint of sustainable development ethics. The following questions are discussed: ‘Should preventative actions be taken today in order to mitigate resource scarcity in future?’ and ‘Should technology developers feel responsible to do this?’ The discussion presents arguments for industrial designers and engineers to create a sense of responsibility for the proactive mitigation of material scarcity. Being protagonists of the innovation system, they have the opportunity to lead change towards resource-aware technology development. The paper concludes by outlining ideas on how they can pioneer sustainable management of critical materials.     

Accounts of workplace bullying: The role of the organization

In over a decade of research into bullying at work, the focus has been on defining, measuring, and explaining the essential nature of the bullying phenomenon. This focus has positioned the individual as the main unit of analysis, with the organization acting as a facilitating backdrop. By assuming a critical research position as opposed to the dominant positivist tradition from which most of the bullying research emanates, attention can be drawn to additional and marginalized accounts. Our research does not offer a definition of bullying—rather, we examine the implications of the different ways in which the term bullying is used. This paper uses data from a case study in a large telecommunications company's call centres. We demonstrate that while employees use the pathologized individual and the facilitating environment to account for bullying, in addition they use the notion of the pathologized organization. This additional narrative brings issues of power and politics in organizations to the fore. Taking a critical management approach, we focus on employee accounts of the oppressive impact of power structures. We argue that marginalizing certain accounts functions to maintain the organizational power balance. By using the term bullying to describe their work experience, employees in this study sought to employ an emotive and highly charged term to highlight their discontent at increasingly difficult work situations.     

Redesigning work through idiosyncratic deals

This study links idiosyncratic deals (i-deals) to job design theory. It investigates the impact of individually negotiated job changes on performance, self-efficacy, and psychological strain through their intervening effects on work design. Based on a sample of 187 health care professionals employed by a hospital in Germany, three types of work design-related i-deals were investigated: (1) task, (2) career, and (3) flexibility i-deals. Consistent with hypotheses, the three types of i-deal had differential effects on work characteristics, and each in turn related to different outcomes. Specifically, job autonomy mediated the task i-deals—job performance relationship; skill acquisition mediated the career i-deals—occupational self-efficacy relationship; and reduced work overload mediated the flexibility i-deals—emotional and affective irritation relationships. Leader–Member Exchange was confirmed as an antecedent of all three types of i-deals. Task, career, and flexibility i-deals are discussed as ways to make work more intrinsically motivating, ensure one’s professional advancement, and balance workplace stressors.     

Intuition in Judgment and Decision Making: Extensive Thinking Without Effort

We claim that intuition is capable of quickly processing multiple pieces of information without noticeable cognitive effort. We advocate a component view stating that intuitive processes in judgment and decision making are responsible for information integration and output formation (e.g., preference, choice), whereas analytic thinking mainly guides input formation such as search, generation, and change of information. We present empirical evidence corroborating this notion and show that integration of information and preference formation works without cognitive control and is unconstrained by the amount of encoded information and cognitive capacity. We discuss the implications of our findings for the bounded rationality perspective and the multiple strategy approach to judgment and decision making. Finally we outline a connectionist framework for integrating intuitive and analytic thought processes.     

Religious/Spiritual Well-Being,Coping Styles,and Personality Dimensions in People With Substance Use Disorders

Religiosity and spirituality have been found to be negatively associated with a range of addictions. It has been suggested that religious/spiritual well-being might play an important role in the development, course, and recovery from addictive disorders. A sample of addiction in-patients (N = 389) was assessed using the Multidimensional Inventory for Religious/Spiritual Well-Being (MI-RSWB) and compared with a matched group of nonaddicted community controls (N = 389). RSWB was found to be substantially lower in people with substance use disorders compared to the normal sample. Discriminate functional analysis showed that Experiences of Sense and Meaning, General Religiosity, and Forgiveness were the dimensions of RSWB that strongly distinguished the groups. Within the group of people with substance use disorders, RSWB was strongly positively associated with the personality dimensions of Conscientiousness, Agreeableness, and Openness as well as Sense of Coherence and positive Coping styles. The study suggests that therapeutic intervention programs focusing on building a positive and meaningful personal framework, akin to that of a religious/spiritual orientation, may contribute to positive outcomes in addiction treatment.     

Nothing but the Truth

A curious feature of Belnap’s “useful four-valued logic”, also known as first-degree entailment (FDE), is that the overdetermined value B (both true and false) is treated as a designated value. Although there are good theoretical reasons for this, it seems prima facie more plausible to have only one of the four values designated, namely T (exactly true). This paper follows this route and investigates the resulting logic, which we call Exactly True Logic.     

Predictive Pointing Movements and Saccades Toward a Moving Target

The authors investigated whether and, if so, how velocity information is used to control predictive manual pointing movements and saccades. Participants (N = 6) intercepted an occluded moving target as if it were still visible. They kept their eyes fixated while the target moved. The target traveled over a fixed distance and changed its velocity on the way. The presentation time of the final velocity was varied. Both the eye and the hand overshot the slow target and undershot the fast target, particularly when the duration of the final velocity was short. Thus, responses were biased in the direction of the target's initial velocity. The error seemed to arise because participants did not take their latency into account when aiming at the target. Instead, they strategically aimed farther ahead when the target was fast. Amplitude was also more related to the position of velocity change than to final velocity duration. Both findings suggest that target velocity is not extrapolated but that individuals add an increment to the position of velocity change.     

Wittgenstein on Expectation,Action, and Internal Relations, 1930–1932

According to Wittgenstein, internal relations are such that, once their terms are given, it is unthinkable that they do not hold. In his early philosophy, the concept of internal relation plays a central role in his views on meaning. The present paper addresses the question of how Wittgenstein's views about internal relations develop during his years of transition (1930–32). In particular, it investigates the connections between the concepts of internal relation, logical multiplicity, and aspect seeing in two thematic fields: (1) Wittgenstein's discussion of the relation between an expectation and what fulfils it, and (2) his discussion of the relation between a sign and an action guided by it.