Testing the co-existence of two timing strategies for motor control in a unique task: The synchronisation spatial-tapping task

The control of rhythmic action sequences may involve two distinct timing strategies, i.e., event-based and emergent timing, which are usually revealed through finger-tapping and circle-drawing tasks, respectively. There is a lively debate concerning the possibility of coexistence of the two modes of timing for the execution of a single task. If one considers emergent timing as simply an absence of explicit representation of a time interval, then by definition, the two modes of timing cannot coexist. However, if one considers that emergent timing engages control of another motor parameter, e.g., a control of movement through space rather than time, then the possibility of coexistence needs to be reassessed. In the present study, we designed a hybrid of finger-tapping and circle-drawing tasks for which the demands for space and time control were present at the same time in order to reassess the coexistence hypothesis. Seventy-eight participants performed a spatial-tapping task in which finger taps were to be produced in synchrony with a regular metronome to 6 visual targets presented around a virtual circle. The metronome set ten distinct tempi (1100–300 ms). Using autocorrelation analyses on timing variables, we show that motor timing was event-based at slow tempi and emergent at faster tempi. Through an analysis of the trajectory, we confirm that an increase in the spatial control of movement took place congruently with a switch from event-based to emergent timing modes. At these fast tempi, timing and spatial errors were correlated but only at the specific target location for which a dynamical anchor point was revealed. Hence, we conclude that the coding of emergent timing has a spatial nature from which emerge timing regularities. This spatio-temporal strategy insures the performance of sequential motor actions when cognitive effort is too high for the use of pure event-based timing strategies.     

A dyadic model of consciousness

The proposed model for consciousness, called a dyadic model, is based upon reexamination of traditional thought structures in the light of modern experimental evidence from a number of scientific fields. It is an evolutionary cosmological model using energy and information as fundamental concepts. It proposes that the antecedent attributes of anthropic consciousness find their roots in the field of zero point quantum potential which gave rise to the Big Bang. In this model consciousness has both a fundamental aspect and an evolutionary aspect in the same sense that quantized energy manifests fundamentally as wave/particles and is observed in more complex form as molecular matter. Physical existence evolved through natural process into ever more complex organizations of matter; so also must anthropic consciousness have evolved from more fundamental antecedent characteristics. The dyadic model proposes a scenario for this evolution that corresponds to the appearance of the universe we seem to inhabit.     

Institutional rearing is associated with lower general life satisfaction in adulthood

We analyzed whether individuals reared in institutions differ in their general life satisfaction from people raised in their families. The data comprised of 19,210 German adults (51.5% female) aged from 17 to 101 years and were provided by the SOEP, an ongoing, nationally representative longitudinal study in Germany. Compared to people raised in families, individuals reared in institutions reported lower general life satisfaction in the manner of a dose response relationship controlling their parents’ education and occupational prestige. The association was moderated by participants’ age such that with increasing age the association between institutional rearing and lower general life satisfaction decreased. Further, the relationship was partly mediated by the individuals own education/socio-economic attainment in adulthood, physical health, and relationship status.     

From relation to the field: Modes of unconscious fantasy elaborations1

Abstract

Relational and field theories have much in common, despite divergent foundations. In this paper, several areas of divergence are selected, including the structure of the field as a relational matrix or as an unconscious joint fantasy of the couple; the fate and form of insight; and the nature of the unconscious as relational or ubiquitous. Differences in cognitive and attentional sets are identified and linked to different modes of insight. Using a clinical vignette, these divergences will be illustrated with an attempt to compare and contrast the two approaches through a discussion of how each lens highlights, expands, or forecloses different features of the analytic process. A mode of conceiving the unconscious as unstructured and multiple in potential is offered to reconcile divergent assumptions in therapeutic action. A consideration of Sandor Ferenczi’s clinical emphasis on relaxed technique, elasticity, and especially mutuality suggests that he would have been a field theorist were he among us today.     

The agony of integration and the blessings of finitude – facing ‘extinction points’ and moments of madness

This paper explores the inevitable pain that integration requires in our individuation process. The unspeakable agony we defended against in order to survive we now experience consciously, including moments of going out of existence at the core of our madness. Clinical examples are given of these ‘extinction points’ and the abject helplessness analysand and analyst suffer in the face of this destructiveness. The first and second witness to this process (usually the analyst and the psyche itself) and the primordial creative life force are recognized in the process of recovery, a recovery that recoups the blessings of our finite human living.     

A parameter analysis method for the weight‐set to satisfy preference orders of alternatives in additive multi‐criteria value models

In the context of the additive multi‐criteria value model, this paper investigates how the set of criteria weights (weight‐set hereafter) can be determined according to the preference orders of alternatives given by the decision maker. A construction method is proposed for the weight‐set for different intervals of β, where β is a differential amount of value between the preference information on two alternatives. The results of this paper are important for sensitivity analysis in multi‐criteria decision making (MCDM) problems and multi‐criteria group decision analysis. Copyright © 2000 John Wiley & Sons, Ltd.     

The effect of learner-adapted practice schedule and task similarity on motivation and motor learning in older adults

The purpose of the present study was to investigate the effect of learner-adapted practice schedule and task similarity on intrinsic motivation and motor learning in older adults. For this purpose, 60 right-handed older adults were randomly divided into six groups of blocked-similar, learner-adapted-similar, random-similar, blocked-dissimilar, learner-adapted-dissimilar, and random-dissimilar. Sequential timing was used as the task, and the intrinsic motivation questionnaire was used for measuring individuals' motivation. The learner-adapted practice was included performing the task in a combination of blocked, serial, and random orders according to error number in each block. The results showed that the learner-adapted practice significantly outperformed than other practice schedules in motivation and motor learning measures in similar and dissimilar conditions. Also, the random schedule resulted in superior performance than the blocked schedule in similar and dissimilar conditions. These findings were discussed according to the challenge point framework.