The relation between preparatory stance and trunk rotation movements

The influence of preparatory stance on rotation movement reaction time of the trunk by bending of the knee and hip joint(s) was examined in 12 subjects. Four preparatory stances were examined: straight knee and hip extension (STAND), slight flexion of knee joints and hip joint (LIGHT), deep flexion (DEEP), and free initial position, i.e. that felt to be the most comfortable and effective (FREE). There was no significant influence of the preparatory stance on hip latency, but there were significant differences between the preparatory stances on response time (RT) and movement time (MT). Furthermore, using a quadratic curve fitting technique, knee joint angles of 24.8 degrees and a hip joint angle of 23.3 degrees were shown to be the optimum flexion angles in the preparatory stance for the initiation of quick trunk rotation movements. It is proposed that mechanical factors have considerably more effects on trunk rotation movements than does the nervous system.     

Comprehension of the representational mind in infancy

A broad array of infant studies are reviewed that appear to be consistent with the idea that belief understanding specifically, and mental attribution generally, emerge much earlier than previously acknowledged. We first examine existing false-belief research, which, while confirming that children under 4 years perform poorly on standard tests, suggests nevertheless that they have more implicit understanding of beliefs than they can express. After surveying theories that both favor and reject early development of theory of mind (TOM), we address two recent bodies of visual fixation research that provide support for the possibility of knowledge and belief attribution in infancy. The first indicates that infants of 13–15 months are sensitive to others’ false beliefs (and therefore have a representational TOM), the second, that by 12 months or younger infants have two antecedently related psychological understandings: (a) that when agents look they “see” and (b) that seeing plays a presumptive role in producing knowledge. This raises the broader question of whether “mentalism” might be part of core knowledge, which takes us to the earliest manifestation of psychological attribution, the construal of agentive behavior as intentional. Contrary to previous assumptions, recent studies indicate that infants of 3–9 months do not accord intentionality exclusively to humans or to self-propelled objects but rather to any entity that: (1) chooses flexibly among means and ends, (2) responds non-randomly to social overtures, and (3) reacts rationally to changing circumstances (i.e., that is not a mere automaton but is selectively and adaptively responsive to the environment). Other evidence is then examined which suggests that infants begin to construe these and other behaviors in mentalist rather than teleological terms much earlier than expected. Finally, the implications of this empirical record for domain-specific and domain-general theories of TOM are considered.     

Undisturbed Upright Stance Control in the Elderly: Part 1. Age-Related Changes in Undisturbed Upright Stance Control

The authors investigated age-related changes in postural control in 33 healthy young adults (18-31 years), 29 seniors (62-75 years), and 22 elderly people (75-96 years). A force platform recorded the results. The horizontal motions of the center of gravity (CG_h) and their difference in the plane of support CP - CG_v were deduced from the complex center of pressure (CP) trajectories. With fractional Brownian modeling, one can establish that the aging process seems to induce a transition phase in which seniors take more time to initiate the corrective process in the mediolateral (ML) axis than do younger people. The elderly develop a new strategy characterized by the mobilization of higher neuromuscular energy to maintain equilibrium. In the ML axis, the larger displacements could be caused mainly by a hip strategy that could facilitate step initiation. In the anteroposterior (AP) axis, seniors and elderly individuals maintain a relative ability to stabilize their CG into the base of support compared with younger people.     

The Scientist and the Artist: adaptive dissociation within the HIV-positive population

This paper reports on the findings of two independent qualitative studies which were conducted with HIV-positive cohort over a period of 2010–2012. Although the original studies used different qualitative designs (IPA and Grounded Theory), the authors have nevertheless sought to explore the combined utility of their findings by using a broad stance of phenomenological enquiry. The authors argue that evidence of a particular dissociative pattern in their accounts of an HIV-related experience is present in the contributors' narrative. Dissociation in this context occurred not in personality but between different or discrete mental faculties such as memory, emotions, perceptions and thought. It was suggested that it serves adaptive function and therefore could be utilised in clinical work when appropriate.     

Resolution of an impasse at a network meeting: Dialogical sequence analysis of the use of a shared formulation

The study describes the resolution of an impasse at a network meeting during clinical child neurological assessment procedure, analysed by dialogical sequence analysis (DSA) a micro-analytic method for analysing utterances. The two earlier studies of the project describe how a DSA-based case conceptualisation can be used to assess change in the dyadic interaction between neuropsychologist and parent. This study applies the same formulation to analyse group level interaction at the network meeting. The case of a four-year-old girl was selected from a database of videotaped and transcribed child neurological team assessment processes. A repetitive problematic pattern was clearly manifested between parents and the child. At an early stage of the assessment, the neuropsychologist formulated and shared with the parents a clinical formulation of the pattern, summarised as the controlling/coercive parents to the rebellious child. In the earlier studies, microanalysis using DSA confirmed the accuracy of the neuropsychologist’s initial formulation, which she had used in the encounters with the parents. This study traces how she made use of it to address a re-enactment of the problematic pattern, now between the parents and professionals at the network meeting. The analysis of the phases of the conflict resolution by using DSA suggests that the impasse represented a re-enactment of the role positions of coercion and rebelliousness. The use of the original formulation at the meeting helped the conflicting parties to reach an observing stance to the pattern and a more empathic attitude to each other. The micro-analytic methodology by DSA used in this study allows to show the therapeutic potential of the network meeting and also how the development of an empathic stance is manifested in the discourse content.     

PALEY'S iPOD: THE COGNITIVE BASIS OF THE DESIGN ARGUMENT WITHIN NATURAL THEOLOGY

The argument from design stands as one of the most intuitively compelling arguments for the existence of a divine Creator. Yet, for many scientists and philosophers, Hume's critique and Darwin's theory of natural selection have definitely undermined the idea that we can draw any analogy from design in artifacts to design in nature. Here, we examine empirical studies from developmental and experimental psychology to investigate the cognitive basis of the design argument. From this it becomes clear that humans spontaneously discern purpose in nature. When constructed theologically and philosophically correctly, the design argument is not presented as conclusive evidence for God's existence but rather as an abductive, probabilistic argument. We examine the cognitive basis of probabilistic judgments in relationship to natural theology. Placing emphasis on how people assess improbable events, we clarify the intuitive appeal of Paley's watch analogy. We conclude that the reason why some scientists find the design argument compelling and others do not lies not in any intrinsic differences in assessing design in nature but rather in the prior probability they place on complexity being produced by chance events or by a Creator. This difference provides atheists and theists with a rational basis for disagreement.     

“THE MYSTERY OF HUMAN UNIQUENESS”: COMMON SENSE,SCIENCE, AND JUDAISM

Uniqueness implies singularity, incomparability. Nonetheless, as applied to everything within the human lifeworld, including ourselves, uniqueness is relativized. This becomes clear in the tension between “commonsensical” and “scientific” perspectives on the human. Our commonsense approach posits that human beings are unique among animals—unique because of our properties, most especially our consciousness, as well as because of our significance and value. From a scientific perspective, however, the uniqueness of the human—if it can be affirmed at all—is possibly a matter of degree, not kind. Additionally, the scientific perspective prescinds from judgments of the value of the human. To join these perspectives, without giving up on the importance of either one, is a philosophical and theological challenge. A Jewish approach to the challenge is offered here.