Introducing a new age-and-cognition-sensitive measurement for assessing spatial orientation using a landmark-less virtual reality navigational task

Age-related impairments during spatial navigation have been widely reported in egocentric and allocentric paradigms. However, the effect of age on more specific navigational components such as the ability to drive or update directional information has not received enough attention. In this study we investigated the effect of age on spatial updating of a visual target after a series of whole–body rotations and transitions using a novel landmark-less virtual reality (VR) environment. Moreover, a significant number of previous studies focused on measures susceptible to a general decline in motor skills such as the spent time navigating, the distance traversed. The current paper proposes a new compound spatial measure to assess navigational performance, examines its reliability and compares its power with those of the measures of duration and traversed distance in predicting participants' age and cognitive groups assessed by Montreal Cognitive Assessment (MoCA) scores. Using data from 319 adults (20–83 years), our results confirm the reliability, the age sensitivity, and the cognitive validity of the designed spatial measure as well as its superiority to the measures of duration and traversed distance in predicting age and MoCA score. In addition, the results show the significant effect of age cognitive status on spatial updating.     

Enrique Pichon Rivière's conception of reality in psychoanalysis

The author places the subject of his paper in the context of the original views of a school of Argentinian psychoanalysts that differed from traditional conceptions of man and his 1 relationship with the sociocultural context – that is, with reality. These were the analysts who followed Enrique Pichon Rivière and further developed his ideas – namely, Madeleine and Willy Baranger, José Bleger, and David Liberman. The author begins his exposition with a discussion of Pichon Rivière and culture. He then offers an outline of Pichon Rivière's particular conception of man, followed by a section on the Internal Group as the nexus between the psyche and reality. Further sections address the idea of reality in the analytic situation as a dynamic field and the operative definition of the transference; the distinction between perceptual reality and the reading of reality, with a consideration of the notion of ‘critical judgement’; and lastly the issue of health and illness in terms of adaptation to reality. In addition, on the basis of a quotation from Antonio Damasio, the author draws a parallel between these psychoanalytic thinkers’ ‘psychosocial’ approach to man and the findings of contemporary neuroscience as presented by one of its paradigmatic protagonists.     

Fried and Freud on the Acropolis; on duality in the base of psychoanalytic thinking

Freud was conflicted in relation to his religious background. On the one hand, he was very clear on his adherence to a scientific Weltanschauung. On the other, he was fascinated by the Moses figure and one may see a Judaist structure in his way of thinking. The aim of this paper is to reflect on this conflict and the question of faith in psychoanalysis. After looking at object and method in religion and psychoanalysis, the authors go into the concept of ‘psychic reality’ and its change in the history of psychoanalysis. Through an analysis of Freud’s A Disturbance of Memory on the Acropolis and the function of literature, it is claimed that faith may be seen as a condition for the sense of experiential reality.     

Virtual personalities: Using computational modeling to understand within-person variability

How can the same underlying psychological/neurobiological system result in both stable between-individual differences and high levels of within-individual variability in personality states over time and situations? We argue that both types of variability result from a psychological system based on structured, chronic motivations, where behavior at a specific point in time is a joint function of the current availability of motive affordances in the situation, current motivationally relevant bodily or interoceptive states, and the result of the competition among alternative active motives. Here we present a biologically-based theoretical framework, embodied in two different computational models, that shows how individuals with stable personality characteristics, can nevertheless exhibit considerable within-person variability in personality states across time and situations.     

Do kinematic metrics of walking balance adapt to perturbed optical flow?

Visual (i.e., optical flow) perturbations can be used to study balance control and balance deficits. However, it remains unclear whether walking balance control adapts to such perturbations over time. Our purpose was to investigate the propensity for visuomotor adaptation in walking balance control using prolonged exposure to optical flow perturbations. Ten subjects (age: 25.4 ± 3.8 years) walked on a treadmill while watching a speed-matched virtual hallway with and without continuous mediolateral optical flow perturbations of three different amplitudes. Each of three perturbation trials consisted of 8 min of prolonged exposure followed by 1 min of unperturbed walking. Using 3D motion capture, we analyzed changes in foot placement kinematics and mediolateral sacrum motion. At their onset, perturbations elicited wider and shorter steps, alluding to a more cautious, general anticipatory balance control strategy. As perturbations continued, foot placement tended toward values seen during unperturbed walking while step width variability and mediolateral sacrum motion concurrently increased. Our findings suggest that subjects progressively shifted from a general anticipatory balance control strategy to a reactive, task-specific strategy using step-to-step adjustments. Prolonged exposure to optical flow perturbations may have clinical utility to reinforce reactive, task-specific balance control through training.     

Relational‐Cultural Theory and Reality Therapy: A Culturally Responsive Integrative Framework

The authors propose an integration of relational‐cultural theory and reality therapy. The authors contend that the traditional assumptions of reality therapy are consistent with the relational aspects of relational‐cultural theory and together provide a culturally responsive approach for diverse clients. The authors also include an overview of the 2 theories as well as highlight the convergences and divergences. In addition, the authors present a case illustration depicting the integration method in practice.     

The use of virtual reality in the study, assessment, and treatment of body image in eating disorders and nonclinical samples: a review of the literature

This article reviews research into the use of virtual reality in the study, assessment, and treatment of body image disturbances in eating disorders and nonclinical samples. During the last decade, virtual reality has emerged as a technology that is especially suitable not only for the assessment of body image disturbances but also for its treatment. Indeed, several virtual environment-based software systems have been developed for this purpose. Furthermore, virtual reality seems to be a good alternative to guided imagery and in vivo exposure, and is therefore very useful for studies that require exposure to life-like situations but which are difficult to conduct in the real world. Nevertheless, review highlights the lack of published controlled studies and the presence of methodological drawbacks that should be considered in future studies. This article also discusses the implications of the results obtained and proposes directions for future research.     

Between private and public: Towards a conception of the transitional subject

Elaborating upon Winnicott’s seminal contributions on the transitional object, the author proposes a conception of a transitional subject in which the patient comes into being simultaneously between private and public, subjective creation and material life, me and not‐me. By anchoring subjective creation in the real world (including the body), the patient creates a basis for authentic psychesoma as well as for both personal and symbolic contributions to the world beyond omnipotence, including the world of other subjects. In this sense, intersubjective life is seen as predicated upon transitionality, with the patient seen as simultaneously coming into being as a distinctly personal subject and, in part, as a symbol. Clinical phenomenology is described and is interpreted with respect to the need within psychoanalysis itself for a third, and for a realm of meaning‐creation that lies beyond privacy, omnipotence, and the dyad.     

To be or not to be trusted: The influence of media richness on defection and deception

When business transactions take place between strangers, individuals rely on the cues during communication to determine whether they can trust others’ intentions. How that process occurs in the context of computer-mediated, video-mediated, and face-to-face interactions is still somewhat unknown. We examine how media richness influences both affective-based and cognitive-based trust in the context of two studies with two different social dilemma scenarios. Further, we explore how these two types of trust influence not only non-cooperative behavior (defection) but also lying (deception). Results from the first study suggest cognitive-based trust mediates the relationship between media richness and defection, while results from both studies suggest that affective-based trust mediates the relationship between media richness and deception. Video-mediated communication solves some, but not all, of the problems inherent when interacting via communication technology.     

Categories and Facets in Integrative Levels

Facets and general categories used in bibliographic classification have been based on a disciplinary organization of knowledge. However, facets and categories of phenomena independent from disciplines can be identified similarly. Phenomena can be classified according to a series of integrative levels (layers), which in turn can be grouped into the major strata of form, matter, life, mind, society and culture, agreeing with Nicolai Hartmann’s ontology. Unlike a layer, a stratum is not constituted of elements of the lower ones; rather, it represents the formal pattern of the lower ones, like the horse hoof represents the shape of the steppe. Bibliographic categories can now be seen in the light of level theory: some categories are truly general, while others only appear at a given level, being the realization of a general category in the specific context of the level: these are the facets of that level. In the notation of the Integrative Level Classification project, categories and facets are represented by digits, and displayed in a Web interface with the help of colours.