Case study: Examining the relationship between self-initiations of an individual with disabilities and directive behavior of staff persons in a residential setting

This case study examines the relationship between self-initiations of an adult woman with severe disabilities and the directive behavior of staff persons in a community residential setting. Hypotheses generated from functional assessment procedures indicated that (a) Susan's low self-initiations were very likely related to high directive behavior of staff persons, and (b) infrequent problem behaviors during the morning routine were maintained by escape from repeated staff demands. An intervention was implemented to enable Susan to increase self-initiation in choice and sequence of activities and simultaneously decrease staff directives. Results and discussion focus on the need for a contextual approach for addressing problematic situations and an affirmation of the effectiveness of the positive behavioral support technology for increasing adaptive behaviors in individuals with severe disabilities.     

Resolving conflicts among principles: ranking, balancing, and specifying.

While much attention has been given to the use of principles in biomedical ethics and increasing attention is given to alternative theoretical approaches, relatively little attention has been devoted to the critical task of how one resolves conflicts among competing principles. After summarizing the system of principles and some problems in conceptualizing the principles, several strategies for reconciling conflicts among principles are examined including the use of single-principle theories (pure libertarianism, pure utilitarianism, and pure Hippocratism), balancing theories, conflicting appeals theories, and lexical ordering. Then a mixed strategy is proposed in which consequentialist principles are balanced between themselves as are nonconsequentialist principles, after which the result of balancing the nonconsequentialist principles is lexically ranked over the result of balancing the consequentialist ones. Finally, strategies involving specifying and rule generation are discussed concluding that most current specification and rule-generating theories must involve some degree of lexical ordering of principles.     

“How dare you sport thus with life?”: Frankensteinian fictions as case studies in scientific ethics

Fictional scenarios involving "hard" science offer what are in effect case studies of scientific ethics. From his analysis of Shelley's novel, biologist Leonard Isaacs constructed a model of a "Frankenstein scenario," applicable to the dilemmas posed by the advancement of science in our time, as well as to fiction about science by such contemporary writers as Robin Cook and Michael Crichton. The special contribution of fiction to the study of ethics is that it both reflects and evaluates reality's infinite permutations. In reflecting and judging, the fictional scenarios engage our moral imagination and compel us to confront our personal ethos in relation to the evolving ethos of science.     

Distributive justice and the minnesota health access initiative

As I have suggested, from the perspective of distributive justice MinnesotaCare's reforms are inadequate. But to coin (and alter slightly) a phrase of Kant's, if its authors do not deserve our moral esteem, perhaps they do merit our encouragement, and it is on a note of the latter that I will conclude. MinnesotaCare is an experiment in systemic incremental change being performed in a complex health care system, the only true laboratory for such an experiment. For this reason, it will provide us important information concerning the ethics, economics, [and] the politics of health care reform while improving the position of some Minnesotans in a significant way. Thus, while MinnesotaCare is susceptible to forceful moral criticism, as an experiment in reform it holds out the promise of providing us some of the data necessary for discovering a just solution.     

Are microsaccades responsible for the gap effect?

Extinguishing a fixation point shortly before, or concurrently with, the onset of a peripheral visual target reduces the latency of saccades to that target. Saslow (1967) hypothesized that thisgap effect might occur because fixation point offsets reduce the incidence of corrective microsaccades with an associated saccadic refractory period. In the present study, a robust gap effect was obtained. However, using a Purkinje image eyetracker with 1 arcmin of resolution, we found that fixation point offsets had no effect on the occurrence of microsaccades and that the occurrence of microsaccades had no impact on the magnitude of the gap effect. Microsaccades therefore do not appear to play any part in the production of the gap effect.     

A pointing technique for rapidly collecting localization responses in auditory research

A technique is described for rapidly collecting responses in auditory-localization experiments. Subjects indicate the perceived direction of the sound by pointing at a 20-cm-diam spherical model. In Experiment 1, the subjects judged the direction of a broadband signal, which could originate from any of 239 directions ranging through 360° of azimuth and between ?45° and +90° of elevation. Using this technique, the subjects responded 2–8 times more rapidly than previous subjects who used either a verbal-reporting technique or a head-pointing technique. Localization judgments were as accurate as they had been with verbal reports, but were not as accurate as judgments collected using the head-pointing technique. In Experiment 2, the signal was turned off and the experimenter read the spherical coordinates of the signal location to the subjects. The subjects pointed to these coordinates more accurately than they had judged the direction of the sounds in Experiment 1, suggesting that the response technique had not been the limiting factor in that experiment. Circumstances relevant to the choice of response techniques for auditory-localization experiments are discussed.