More conservative go/no-go response criterion under high working memory load

Previous work has shown that the efficiency of selective attention depends on the availability of cognitive control functions, including working memory. Here we examined the role of working memory in another task involving executive control, namely, a go/no-go task. Participants performed the Sustained Attention to Response Task, which requires withholding a prepotent response to an infrequent target, when at the same time placing a low or high load on an unrelated working memory task. Working memory load had the effect of reducing accuracy on the go trials, when at the same time increasing accuracy on the no-go trials. We interpret these findings to suggest that high working memory load led to a shift to a more conservative response criterion.     

Effects of Local Muscular Fatigue Due to Isotonic and Isometric Exercise Upon Fractionated Reaction Time Components

Fractionated RT for a right knee-extension task was assessed on eight male and eight female Ss over eight treatment days. Following four consecutive days of 75 RT trials /day to insure stabilized strength and RT components, Ss were administered two days of bench stepping and two days of isometric exercise designed to induce muscular fatigue of the knee extensors. Significant strength decrements of up to 24% were induced by both the isotonic (bench stepping) and isometric exercise treatment conditions but no changes were observed in fractionated RT components. The results would seem to indicate that performance differences in fine-versus gross-motor skill tasks due to fatigue need to be more carefully examined.     

The object beyond objects and the sacred

In both Freud's and Winnicott's thoughts regarding our psychological origin, there is the assumption of a given relationship which precedes all human relations. I refer to Freud's primal father and Winnicott's primary ideal object. I have chosen to call the object of this primordial relation “the object beyond objects” and to reflect on this as the psychological basis for an individual's faith in God. By examining what both these authors have to say concerning the sacred and the individual's way of relating to it, I feel that I am also able to describe maturation processes in the believer's relationship with God.     

The containing object—a prerequisite for developing the symbolic function

The paper aims at investigating the prerequisites for the process of symbolisation to develop and to be used by the personality. The starting point for this exploration is the psychoanalysis with a little boy of four and a half who started analysis because of an encopresis that was an expression of an overwhelming and concrete annihilation anxiety. It is argued that the sym- bolisation process has its basis in the relation to a real, reliable object and that this relation is a prerequisite for the child to start trying to transmit his experiences. The clinical material shows the boy's efforts to find an object capable of containing his anxiety and giving words to his unbearable affects, and the way this is worked through in the transference. This process contributed to his growing capacity to use symbols as an expression of his emotional experiences and it offered him a way of thinking about them instead of acting them out concretely.     

Relational-oriented character analysis

Referring to the diversity of psychoanalysis of today, a position called relational-oriented character analysis is discussed. It is stated that relation and character as concepts refer to different and partly contradictory points of view in psychoanalysis, the first one emphasising mobile, dynamic aspects of personality, the second underlining stable, structural aspects. The principle aim of the article is to argue how the two perspectives can be theoretically combined in an overriding object-relational (two-person) conception and to discuss some implications for analytic technique. Finally, convergences and differences with other positions or schools in contemporary psychoanalysis are suggested.     

Categorization difficulty is associated with negative evaluation in the “uncanny valley” phenomenon

Human observers often experience strongly negative impressions of human‐like objects falling within a particular range of visual similarity to real humans (the “uncanny valley” phenomenon). We hypothesized that negative impressions in the uncanny valley phenomenon are related to a difficulty in object categorization. We produced stimulus images by morphing two of each of real, stuffed, and cartoon human face images (Experiment 1). Observers were asked to categorize each of these images as either category and evaluated the likability of the image. The results revealed that the longest latency, the highest ambiguity in categorization, and the lowest likability score co‐occurred at consistent morphing percentages. Similar results were obtained even when we employed stimulus images that were created by morphing two of each of real, stuffed, and cartoon dog images (Experiment 2). However, the effect of categorization difficulty on evaluation was weak when two real human faces were morphed (Experiment 3). These results suggest that the difficulty in categorizing an object as either of two dissimilar categories is linked to negative evaluation regardless of whether the object is human‐related or not.     

Object processing for action across childhood

Human adults process and select the opportunities for action in their environment rapidly, efficiently, and effortlessly. While several studies have revealed substantial improvements in object recognition skills, motor abilities, and control over the motor system during late childhood, surprisingly little is known about how object processing for action develops during this period. This study addresses this issue by investigating how the ability to ignore actions potentiated by a familiar utensil develops between ages 6 and 10 years. It is the first study to demonstrate that (1) the mechanisms that transform a graspable visual stimulus into an object‐appropriate motor response are in place by the sixth year of life and (2) graspable features of an object can facilitate and interfere with manual responses in an adult‐like manner by this age. The results suggest that there may be distinct developmental trajectories for the ability to ignore motor responses triggered by visual affordances and the stimulus response compatibility effects typically assessed with Simon tasks.     

Art - A Feasible Illusion

This article discusses the approximation between art and psychoanalysis, considering both as manifestations of the unconscious. Art is viewed as a successful instinctual substitute which differs from the symptom in terms of effectiveness. A work of art is the symbolic universe of the artist, who, by withdrawing into the world of imagination, encounters the pathways of reality. Artistic manifestation is not interpretable, however it communicates with the observer who may also find satisfaction for his own unconscious desires therein.     

Freud and narcissism: Developing links for inclusion of the ‘object’

Abstract

The problematic of narcissism in the way Freud visualized forces us to acknowledge the dualism of drives inside the subject; the object relations theory then builds up on the inherent need and the structuring potential of the object. The paper traces the growth of this concept in Freud's thinking in a bid to show how the object's otherness is not fully metabolized within the Freudian corpus. On the other hand, recent criticisms of object relations theory point to the perfunctory role ascribed to Freud's most radical discovery of the dualism of drives. Winnicott, Laplanche and Green have all developed theories that have provided pertinent rejoinders to the problematic of narcissism and object relations. The paper discusses how deconstructing and “going back over Freud” helps us to redefine object relations and give the drive functioning due importance. Hence the main thesis of the paper – that of narcissism – reveals the decentered subject's tussle with itself and with the alienness emanating from the object's otherness. If used creatively, ideas such as “otherness”, “objectalizing function” and Green's conceptualization of the clinical significance of negative and positive narcissism then seek to enrich the theorization on narcissism.     

Testing the exclusivity effect in location memory

There is growing literature exploring the possibility of parallel retrieval of location memories, although this literature focuses primarily on the speed of retrieval with little attention to the accuracy of location memory recall. Baguley, Lansdale, Lines, and Parkin (2006) found that when a person has two or more memories for an object's location, their recall accuracy suggests that only one representation can be retrieved at a time (exclusivity). This finding is counterintuitive given evidence of non-exclusive recall in the wider memory literature. The current experiment explored the exclusivity effect further and aimed to promote an alternative outcome (i.e., independence or superadditivity) by encouraging the participants to combine multiple representations of space at encoding or retrieval. This was encouraged by using anchor (points of reference) labels that could be combined to form a single strongly associated combination. It was hypothesised that the ability to combine the anchor labels would allow the two representations to be retrieved concurrently, generating higher levels of recall accuracy. The results demonstrate further support for the exclusivity hypothesis, showing no significant improvement in recall accuracy when there are multiple representations of a target object's location as compared to a single representation.