Two-voice music programming system: The PDP-9 as an automatic electronic organ

A small computer was programmed to translate two-part musical scores into tables of numbers which were then used in the execution of the music through an amplifier and loudspeaker. The objective was to create sets of tape recordings to be used in psychophysical testing of the discriminabilities and preferabilities of music played on different pitch scales. The close tolerances in the timing of events in such stimulus materials demand special programming techniques and hardware components. The working system is described, and recommendations are made concerning the main features of an improved system.     

Expanding the tactual field of view

Can tactual information be acquired simultaneously by several different fingers? Blind and sighted Ss were asked to scan vertical displays of braille (consisting of either one or two dots) with the index and middle fingers on each hand-using one, two, or four fingers at the same time. Stimuli were recognized most rapidly when the displays were scanned by two fingers on different hands and least rapidly when two fingers on the same hand were used; performance was similar with one finger and with four fingers. The results indicated some parallel perceptual processing of the inputs to the two hands and mutual interference in processing inputs from fingers on the same hand.     

A generalized visual latency explanation of the Pulfrich phenomenon

The classical visual latency explanation of the Pulfrich phenomenon is generalized to allow for the possibility that the visual system uses velocity information from motion detectors to compensate for spatial lag due to time lag, in identifying the instantaneous position of a moving object. The results of the reported experiment verify one consequence of the generalized version: the elliptical apparent path is skewed away from the filtered eye. The results suggest also that the extrapolation factor increases with visual latency and that there is a different extrapolation factor for each eye when the eyes are illuminated unequally.     

“I Will Be Your God and You Will Be My People”: Attachment Theory and the Grand Narrative of Scripture

In this article, we apply attachment theory to the grand narrative of Christian Scripture: creation, fall, redemption, and new creation. First, utilizing four key features of attachment theory—secure base, exploration, attachment behaviors, and safe haven—we attempt to integrate the “circle of attachment” with the biblical story of creation. Next, we explore the overlap between maternal deprivation, including the stages of protest, despair, and detachment, and the fall of humankind elucidated in the biblical storyline. Finally, we discuss the relationship between attachment theory and redemption and new creation within the grand narrative of Scripture. By focusing on the relationship between God and humankind found within the Old and New Testaments, we seek to expand the theological underpinnings of the attachment to God literature and conclude by offering suggestions for therapists and pastoral counselors working with Christians exhibiting disordered attachment patterns.     

A Pilot Study of Pedestrians with Visual Impairments Detecting Traffic Gaps and Surges Containing Hybrid Vehicles

The increasing number of hybrid and quiet internal combustion engine vehicles may impact the travel abilities of pedestrians who are blind. Pedestrians who rely on auditory cues for structuring their travel may face challenges in making crossing decisions in the presence of quiet vehicles. This article describes results of initial studies looking at the crossing decisions of pedestrians who are blind at an uncontrolled crossing (no traffic control) and a light controlled intersection. The presence of hybrid vehicles was a factor in each situation. At the uncontrolled crossing, Toyota hybrids were most difficult to detect but crossing decisions were made more often in small gaps ended by a Honda hybrid. These effects were seen only at speed under 20 mph. At the light controlled intersection, parallel surges of traffic were most difficult to detect when made up only of a Ford Escape hybrid. Results suggest that more controlled studies of vehicle characteristics impacting crossing decisions of pedestrians who are blind are warranted.     

8080 port addressing with the C/80 compiler

This paper deals with Intel 8080 port addressing with the C/80 compiler. Specifically, two assembly language routines designed for the C/80 are described.     

What church administration can learn from the secular world

Conclusion In many ways, it could be argued that the Reformation was a fight for a theology of administration. Whether one is speaking of Luther in relation to the Pope or Calvin and the Anabaptists, tremendous attention was given to the administrative relationships.In our day, we need to recover the awareness of the Reformers that the way we organize our structures perhaps says more about ourreal theology than the sermons we preach. Church order is, in this sense, the heart of the approach to theology. There is evidence that business is beginning to take order seriously. There is equal evidence that the church, too, is beginning to ask the real questions. Unless the church is to be just in the ghetto, or business is to lose the benefit of disciplined questions about meaning, we cannot say that the church and business can be in dialogue. We can say that theymust be.Formerly, Pastor of Larchmont Avenue Church Larchmont, New York     

Simple reaction time with markovian evolution of gaussian discriminal processes

If the discriminal distributions of signal-detectability theory evolve in time according to a normal Markov process, they can be characterized by Brownian motion generalized with a constant bias determined by signal strength. If the process is stopped at the first occurrence of a preset criterion displacement, the resulting latency distribution provides a model for the central component of simple reaction time. Discussed are properties of the distribution which should be useful in obtaining experimental predictions from neural-counting assumptions, and in relating reaction times to basic variables of the theory of signal-detectability.This paper was written while the author was on a post-doctoral fellowship at the Mental Health Research Institute, University of Michigan, supported by U.S.P.H.S. Training grant T01-MH-7417-07.