A dynamic system analysis of dyadic flexibility and stability across the Face-to-Face Still-Face procedure: Application of the State Space Grid

The Face-to-Face Still-Face (FFSF) paradigm allows to study the mother–infant dyad as a dynamic system coping with social stress perturbations. The State Space Grid (SSG) method is thought to depict both flexibility and stability of the dyad across perturbations, but previous SSG evidence for the FFSF is limited. The main aims were: (1) to investigate mother–infant dyadic flexibility and stability across the FFSF using the SSG; (2) to evaluate the influence of dyadic functioning during Play on infant Still-Face response and of infant stress response in affecting dyadic functioning during Reunion. Forty 4-month-old infants and their mothers were micro-analytically coded during a FFSF and eight SSG dyadic states were obtained. Dyadic flexibility and attractor states were assessed during Play and Reunion. Infants’ stress response was coded as negative engagement during the Still-Face episode. Two dyadic states, “maternal hetero-regulation” and “affective mismatch”, showed significant changes in the number of visits from Play to Reunion. During Play “maternal positive support to infant play” emerged as attractor state, whereas during Reunion a second attractor emerged, namely “affective mismatch”. Dyadic affective mismatch during Play correlated with infants’ negative engagement during Still-Face, whereas infants’ response to Still-Face resulted in minor social matching during Reunion. Findings provide new insights into the flexible, yet stable, functioning of the mother–infant dyad as a dynamic system. Evidence of a reciprocal influence between dyadic functioning and infant social stress response are discussed.     

Children’s social desirability: Effects of test assessment mode

This study examined a recently developed short version of the Children’s Social Desirability (CSD-S) scale with 157 fourth-grade children. Of interest was (a) whether one-month test–retest reliability would vary as a function of test assessment mode (interview or classroom), gender, race, SES, and BMI percentile, and (b) whether the degree of social desirability would vary as a function of these same variables. The CSD-S scale showed good test–retest reliability for both interview and classroom assessment modes (.85 and .83, respectively). Internal consistency also was good (first interview administration = .84; first classroom administration = .81). Reliability was good and did not vary significantly over assessment mode or any child subgroup variables, suggesting that the CSD-S scale is appropriate for general use. The interview mode elicited significantly more socially desirable answers than did the classroom mode. Social desirability did not differ across child subgroups. Some of these findings were examined, and replicated, on another sample. Thus, the CSD-S scale may be used with diverse groups of children to (a) reliably assess a social desirability bias that may systematically bias other self-reports of interest to researchers and (b) examine individual differences in degree of social desirability.     

Towards the logic of projective identification

This paper is devoted to the ‘logic of the unconscious’ and its application to the analysis of projective intentionality in psychoanalysis.Subjective assumptions concerning the existence and identity of intentional objects are often unconscious. They result from personal experience through its assimilation and transformation in further psychological (e.g. defensive) processes. Formal aspects of these subjective assumptions and their influence on our judgment and action have been studied by a number of psychoanalytic authors, in particular by Silvano Arieti, Ignacio Matte-Blanco and their followers who tried to develop ‘logic of the unconscious’. My project consists in the reformulation, clarification and elaboration of the logic of the unconscious using contemporary modal and relevant logics, in particular Graham Priest's logic of intentionality. An important advantage of this logic is that it allows for truth indeterminacy and paraconsistency of the propositional content of intentional states. In this article I explore the logic of projective identification, which I assume plays the central role in the logic of the unconscious.Special attention is given to the logical analysis of the notion of an internal object, and to a logical reconstruction of the fantasy of projective identification.     

A concept approach to input/output logic

This paper provides a semantics for input/input output logic based on formal concept analysis. The central result shows that an input/output logic axiomatised by a relation R is the same as the logic induced by deriving pairs from the concept lattice generated by R using a ∧- and ∨-classical Scott consequence relation. This correspondence offers powerful analytical techniques for classifying, visualising and analysing input/output relations, revealing implicit hierarchical structure and/or natural clusterings and dependencies. The application of all formal developments are illustrated by a worked example towards the end.     

Reprint of “Unruly grasses: Affective attunements in the ecological restoration of urban native grasslands in Australia”

This paper explores affect as an ’angle of approach’ for re/considering the work of ecological restoration in urban spaces. My focus is on the more-than-human affective dimensions of the reintroduction of native grasses in Melbourne’s (Australia) urban parklands. Sara Ahmed suggests that ’affect is what sticks or sustains or preserves the connection between ideas, values and objects’ (2010, 29), and here I extend this notion to think about the restoration of grasslands not as primarily material transformations (to which we might react), but as the recomposition of the ’ideas, values and objects’ that constitute urban park naturecultures. The paper highlights the role of affective relations in the inheritance of landscapes that do not attract widespread positive affection. It employs Sara Ahmed’s concept of the affect alien as a figure of nonconformity, to uncover how the affective resonances of grasslands might open new possibilities for attuning to the complex and multiple naturecultures of postcolonial lands.     

Création et validation d’une version française du questionnaire AttrakDiff pour l’évaluation de l’expérience utilisateur des systèmes interactifs

IntroductionWhile user experience (UX) evaluation is a core concern within the field of human–computer interaction (HCI), there is currently no valid self-administered UX evaluation tool in French. The AttrakDiff 2 scale (Hassenzahl, Burmester, & Koller, 2003) is a UX evaluation tool, which relies on a theoretical model distinguishing pragmatic and hedonic qualities of interactive systems.ObjectiveThis paper describes the translation and validation of the French version of the AttrakDiff 2 scale in order to ease UX assessment in French-speaking users.MethodFollowing the cross-cultural methodology developed by Vallerand (1989), the questionnaire was translated by trilingual researchers before being back-translated and validated by a panel of experts. A pre-test was conducted on 26 participants. The characteristics of the French version of the AttrakDiff 2 scale were then evaluated through a quantitative online study involving a sample of 381 users.ResultsThe results confirm the expected 3 factors structure and a good internal consistency of each subscale. The links between factors are consistent with Hassenzahl's theoretical model (2003) where pragmatic and hedonic perceived attributes combine to form a judgment of attractiveness.ConclusionThe current French version of the AttrakDiff 2 scale is globally reliable with regards to the initial German version and presents satisfactory levels of validity and reliability.     

Structural heterogeneity in a binary Pd–Si metallic glass

A Pd₈₁Si₁₉ bulk metallic glassy rod with a diameter of 4.5 mm was produced by water quenching the fluxed alloy. Despite a negative heat of mixing between Pd and Si elements and very simple components constituting the binary Pd–Si glass-forming system, structural heterogeneity was induced either by slow cooling of a liquid or sub-T_g annealing of glassy ribbons. The sub-T_g annealing experiments evidenced that a more ordered amorphous phase emerged from the original glassy matrix. Our work provides an alternative way to tune the microstructure of metallic glasses by subsequent thermal treatment on an as-prepared single glassy phase.     

Mantle region accommodating two-dimensional grain boundary sliding in ODS ferritic steel

Two-dimensional grain-boundary sliding (GBS) was achieved microscopically in an oxide-dispersion-strengthened ferritic steel with an elongated and aligned grain structure, which was deformed perpendicular to the long axis. At the border between superplastic regions II and III, microscopic deformation was observed using sub-micron grids drawn on the material surface using a focused ion beam. GBS was accommodated by intragranular deformations in narrow areas around grain boundaries, which has been predicted by earlier researchers as characteristics of the core–mantle model. These observations suggest that dislocations slip only in the mantle regions around wavy boundaries to relax the stress concentration caused by GBS during superplasticity.     

Dodecagonal quasicrystal in Mn-based quaternary alloys containing Cr,Ni and Si

A dodecagonal quasicrystal showing 12-fold symmetry forms in Mn-rich quaternary alloys containing 5.5 or 7.5 at.% Cr, 5.0 at.% Ni and 17.5 at.% Si. After annealing at 700 °C for 130 h, the quasicrystal precipitated in a matrix of β-Mn-type crystalline phase. The shape of the quasicrystal is needle-like having a length of several tens of micrometres. Electron diffraction as well as powder X-ray diffraction experiments has revealed the following characteristics of the quasicrystal: diffraction symmetry 12/mmm, the presence of systematic extinction for h₁h₂h₂h₁h₅-type reflections with odd h₅ index, and then five-dimensional space group P12₆/mmc. Indexing of the reflections indicated that the dimension of the common edge in the equilateral triangle–square tiling is 4.560 Å, and the periodicity is 4.626 Å along the 12-fold axis. This is the first example of the dodecagonal quasicrystal synthesized by ordinary metallurgical method in 3-d transition-metal alloys.