Accurate and biased perceptions of responsive support predict well-being

The current research examined effects of accurate and biased perceptions of romantic partners’ responsive support provision on perceivers’ well-being. Perceivers discussed a personal problem with their romantic partners (“targets”). Perceivers’ perceptions of targets’ responsive support following the discussion were related to external indicators of targets’ behavior, but these perceptions also were predicted by perceivers’ sentiments toward targets, suggesting that processes underlying perceivers’ perceptions were a blend of both accuracy and bias. In addition, both accurately perceived and biased perceptions of targets’ responsiveness predicted perceivers’ personal well-being (i.e., affect, coping, self-efficacy) and interpersonal well-being (i.e., more positive sentiments toward targets) immediately after the support interaction, 2 weeks later, and 6 months later. Results suggest that accurate and biased cognition during interpersonal interactions can have important consequences for perceivers’ personal and interpersonal well-being through effects on perceived partner responsiveness.     

Of guns and snakes: testing a modern threat superiority effect*

Previous studies suggest that ancient (i.e. evolutionary-based) threats capture attention because human beings possess an inborn module shaped by evolution and dedicated to their detection. An alternative account proposes that a key feature predicting whether a stimulus will capture attention is its relevance rather than its ontology (i.e. phylogenetic or ontogenetic threat). Within this framework, the present research deals with the attentional capture by threats commonly encountered in our urban environment. In two experiments, we investigate the attentional capture by modern threats (i.e. weapons). In Experiment 1, participants responded to a target preceded by a cue, which was a weapon or a non-threatening stimulus. We found a larger cuing effect (faster reaction times to valid vs. invalid trials) with weapons as compared with non-threatening cues. In Experiment 2, modern (e.g. weapons) and ancient threats (e.g. snakes) were pitted against one another as cues to determine which ones preferentially capture attention. Crucially, participants were faster to detect a target preceded by a modern as opposed to an ancient threat, providing initial evidence for a superiority of modern threat. Overall, the present findings appear more consistent with a relevance-based explanation rather than an evolutionary-based explanation of threat detection.     

Speed-accuracy trade-offs in myocontrol

Myoelectric (EMG) signals are used in assistive technology for prostheses, computer and domestic control. However, little is known about the capacity of controlling these signals. Specifically, it is unclear whether myocontrol, i.e., the control of myoelectric signals, obeys the same laws as motor control. Neurologically intact adult participants performed pointing tasks with EMG signals captured from the forehead or the hand in two modalities (sustained: stabilize the signal amplitude in the target; impulsion: produce an impulse and return to resting level). In the sustained modality, the time to reach the target (reach time) increased logarithmically with target amplitude, which is compatible with the predictions of Fitts' law. The rate of failure was not significantly affected by target amplitude. In the impulsion modality, the reach time and the rate of failure followed a bow-shaped pattern as a function of target amplitude. Stabilization time in the sustained modality followed a convex (bow-shaped) pattern for the forehead and a concave pattern for the hand. This was the only significant effect of electrode placement in this study. These findings suggest that myocontrol obeys laws that are distinct from those determining motor control, and that the muscular and intra-muscular synergies that produce EMG signals are specific of each pointing modality and target amplitude.     

Grouping does not require attention

Many theories of visual perception stipulate that Gestalt grouping occurs preattentively. Subjects' failure to report perceiving even salient grouping patterns under conditions of inattention challenges this assumption (see, e.g., Mack, Tang, Tuma, Kahn, & Rock, 1992), but Moore and Egeth (1997) showed that although subjects are indeed unable to identify grouping patterns outside the focus of attention, effects of these patterns on visual perception can be observed when they are assessed using implicit, rather than explicit, measures. However, this finding, which is the only one to date demonstrating grouping effects without attention, is open to an alternative account. In the present study, we eliminated this confound and replicated Moore and Egeth's findings, using the Müller-Lyer illusion (Experiments 1 and 2). Moreover, we found converging evidence for these findings with a variant of the flanker task (Experiment 3), when the amount of available attentional resources was varied (Experiments 4 and 5). The results reinforce the idea that, although grouping outside the focus of attention cannot be the object of overt report, grouping processes can occur without attention.     

Static and dynamical ageing processes at room temperature in a Fe25Ni0.4C virgin martensite: effect of C redistribution at the nanoscale

The work-hardening behaviour of virgin martensitic steel has been investigated in a strictly un-aged state and after various ageing conditions. At room temperature (RT), the un-aged alloy shows astonishing tensile performances (ultimate tensile stress?=?1600?MPa/uniform elongation?=?15%) but unexpected serrations. These serrations can be suppressed by static ageing (at RT or higher) while maintaining the initial work-hardening rate (ageing at RT). Parallel investigations using atom probe tomography reveal that the distribution of carbon at the atomic scale evolves from purely homogeneous for virgin martensite to partly segregated at a very fine scale (5–10?nm) after static ageing. This particular mechanical behaviour can therefore be associated with a very local decrease in available carbon in solid solution due to redistribution and segregations on defects (nanotwins) that occurs rapidly, even after few days at RT.     

Challenges for the Democratic Management of Technoscience: Governance,Participation and the Political Today

Abstract

The democratic management of technoscience and techno-scientific products, in and by society, has become a contentious issue. The issues have been framed in diverse ways, often marginalizing the question of power and of political‐economic macro-regulations. This paper advocates more down-to-Earth, anti-euphemistic, and realpolitik-oriented ways of describing what organizes today's techno-scientific world. In our market-based democracies, dialogic and participatory democracy is not central to the regulation of technoscience, techno-scientific knowledge and products. These are regulated mainly by other institutions that lie outside the dialogic order. Democracy is not a political regime free from conflict; discourses of participation have become central elements of a new form of governmentality. New concepts such as ‘sustainable development’ may conceal more than they reveal about what is at stake. Deconstructing them in a systematic manner, and building genealogies of their deployment and acceptance, would be helpful.

These recent developments should induce us to reconsider two key questions: how to talk positively about various kinds of knowledge, and how to understand the various links between science, the political order and democracy. Today we are living at a time of maximal tension between two great historical dimensions of the ‘modernization’ process—one linked to democracy and its extension, the other to human invention and technophilic business. Given these developments, we should develop a reflexive look at the roles we play in the globalization process. We must take up these difficult and contradictory questions, while not restricting ourselves to what may be instrumentally realizable.     

A brief introduction to the work of Jean Laplanche

The author proposes an introduction to the work of Jean Laplanche, a well‐known figure of psychoanalysis who recently passed away. He foregrounds what he views as the three main axes of Laplanche's work: firstly, a critical reading method applied to Freud's texts; secondly, a model of psychic functioning based on translation; and, thirdly, a theory of general seduction. Far from being an abstract superstructure, the theory of general seduction is firmly rooted in the analytic situation, as the provocation of transference by the analyst best illustrates. The analytic situation indeed consists in a revival and a reopening of the ‘fundamental anthropological situation’ which, according to Laplanche, is the lot of every human baby born in a world where he or she is necessarily exposed to the enigmatic and ‘compromised’ messages of the adult other. Thanks to the process of analytic de‐translation, the analysand is therefore granted an opportunity to carry out new translations of the other's enigma – translations or symbolizations that might be more inclusive and less rigid than the pre‐existing ones. Incidentally, such a model brings together the purely psychoanalytic and the psychotherapeutic aspects of the treatment.     

Landmark Frames of Reference in Interactive Route Description Tasks

The current study investigated the use of frames of reference in an asymmetrical spatial dialogue task. Participants navigated through a real environment by following instructions provided by other participants guiding them over the phone. The dialogues were transcribed and analysed to locate the introduction of landmarks. We examined which frames of reference were used to introduce these landmarks and how far their use was determined by each participant's role within the dyads (i.e. guide vs. guided person). Results revealed that both partners contributed to the dialogue by introducing landmarks. However, the guides introduced more landmarks than the guided persons and were also more likely to use perspective taking when doing so. These results are discussed in the light of perspective taking and collaboration in dialogue. Copyright © 2013 John Wiley & Sons, Ltd.     

Isolement et solitude au travail : l’exemple des agents d’accueil de parcs urbains. Des effets pathogènes aux processus de régulation et de dégagement

Through action-research case study in the area of “Parks and Gardens”, this paper focused on the relations between “aloneness”, “loneliness” and “solitude” at work and their necessary distinctions. The Socio-Clinical work psychology approach used during the intervention helped to highlight some key elements. While aloneness characterizes a stretched between the subject and its external environment link, loneliness and solitude are defined as intra-subjective process mainly emotional psycho. These last notions remain in any case a test for physical and psychological occupational health. It seems that the outcomes depend largely on the ability of the subject to convert aloneness to solitude. In our case study three valences of aloneness with different level of risk for health, were underline: solitude, as creative aloneness; defensive aloneness; and loneliness. The advantages of this new approach for prevention are discussed in the positioning relative to other work on the subject.