A note on the speed-amplitude function in movement control

An experiment is reported that documents the maximum average speed-amplitude relationship across the full range of motion for elbow flexion. Minimum movement time increased as a negative exponential within the movement range up to 94-97% of the maximum range of motion. At this point a discontinuity occurred with movement time increasing at an increasing rate probably due to anatomical and morphological constraints. These results suggest that the maximum average velocity-amplitude boundary to the movement speed-accuracy relationship is curvilinear. Kinematic analysis of the movements as a function of range of motion suggests that a simple pulse-step model of movement control cannot account for the present findings.     

Towards a comprehensive treatment for obsessional thoughts

A systematic treatment approach for obsessional thoughts is proposed. It is based upon an analysis of the chain of convert events and incorporates the distinction between the obsessional idea or fear and the cognitive rituals which follow. Systematic Disruption of covert rituals and Cognitive Restructuring of obsessional ideas are included within the treatment programme. The application of this approach is demonstrated with three cases treated for severe obsessional thoughts and followed up after 2 years.     

The regression to right angles tendency,lateral inhibition,and the transversals in the Zöllner and Poggendorff illusions

A new version of the Zöllner illusion is demonstrated. Two different ways in which the regression to right angles tendency might operate are distinguished and considered in relation to the illusion. Experiments are reported which show that the one consistent with lateral inhibition between orientation detectors gives the better explanation of the illusion. The implications of this for the Poggendorff illusion are considered.     

Some issues in programming multi-mini-processors

Large computer systems, called multi-mini-processors, can be constructed by joining together many minicomputers. Two such systems are described, and seven issues encountered in the programming of such systems are discussed.     

THE PHENOMENON OF INTELLIGENCE AS SEEN BY A LAY-SCIENTIST

Abstract. This paper sees intelligence as certainly not a thing which is the sole prerogative of man but rather as a category of skill, natural to all organisms, integral with their capacity for handling their environment, and increasingly well developed in the higher animals. Intelligence is seen as a natural property of living organisms at their highest levels: a characteristic of living things which is emergent in the same way as, and essentially in parallel with, perception, consciousness, and moral and spiritual sensitivities.     

The effects of relative intensity of cue and marker on marked trace conditioning in pigeons

Pigeons were trained on trace conditioning procedures (autoshaping) in which a keylight conditioned stimulus (CS) was presented for 5 sec and followed after a 10-sec temporal gap by food. In Experiment 1, acquisition of conditioned responding to the CS was facilitated when it was immediately followed by a brief stimulus, but only when the brief stimulus was of greater intensity than the trace CS. In Experiment 2, this facilitation effect was found when a more intense brief stimulus followed the trace CS immediately, but not when it was delayed. In both experiments, responding to the target CS was compared within-subjects to that to a control CS, which eliminated factors such as second-order conditioning as an explanation for the facilitation effects. Together, the results of Experiments 1 and 2 suggest that a brief stimulus may mark immediately preceding events in memory and thus facilitate their association with delayed reinforcement only if the brief stimulus is relatively more intense, and thus more salient, than the target events. In Experiment 3, we found substantial generalization of this facilitation effect from the marked CS to the control CS and conclude that the results of Experiments 1 and 2 may underestimate the magnitude of these marking effects.     

The Spiritual Competency Scale

This study describes the development of the Spiritual Competency Scale, which was based on the Association for Spiritual, Ethical and Religious Values in Counseling's original Spiritual Competencies. Participants were 662 counseling students from religiously based and secular universities nationwide. Exploratory factor analysis revealed a 22‐item, 6‐factor solution with internal consistency. The data highlighted areas for remediation, suggested that a stand‐alone spirituality in counseling course may be the most effective instructional strategy, and provided a template for revisions to the Spiritual Competencies.