Comparisons between one-key and two-key versions of the sinewave schedule for pigeons

When the rate of reinforcement for pigeons' key pecking varied over time following a sine waveform, performances were more consistent and reliable if a constant-rate reinforcement schedule was concurrently available on a second key than if only the sinewave-varying reinforcement schedule was available. In the two-key version, response rates clearly followed varying reinforcement rates with the same frequency, with no phase lag, and without breaks. In both versions, pecking rate was a power function of reinforcement rate. Sinewave-schedule performance waveforms qualified for engineering methods of frequency analysis and met criteria for a standard measurement system.     

Response deprivation and reinforcement in applied settings: A preliminary analysis

First-grade children engaged in seatwork behaviors under reinforcement schedules established according to the Premack Principle and the Response Deprivation Hypothesis. Across two experiments, schedules were presented to the children in a counter-balanced fashion which fulfilled the conditions of one, both, or neither of the hypotheses. Duration of on-task math and coloring in Experiment 1 and on-task math and reading in Experiment 2 were the dependent variables. A modified ABA-type withdrawal design, including a condition to control for the noncontingent effects of a schedule, indicated an increase of on-task instrumental responding only in those schedules where the condition of response deprivation was present but not where it was absent, regardless of the probability differential between the instrumental and contingent responses. These results were consistent with laboratory findings supporting the necessity of response deprivation for producing the reinforcement effect in single response, instrumental schedules. However, the results of the control procedure were equivocal so the contribution of the contingent relationship between the responses to the increases in instrumental behavior could not be determined. Nevertheless, these results provided tentative support for the Response Deprivation Hypothesis as a new approach to establishing reinforcement schedules while indicating the need for further research in this area. The possible advantages of this technique for applied use were identified and discussed.     

An analytic comparison of Herrnstein's equations and a multivariate rate equation

Herrnstein's equations are approximations of the multivariate rate equation at ordinary rates of reinforcement and responding. The rate equation is the result of a linear system analysis of variable-interval performance. Rate equation matching is more comprehensive than ordinary matching because it predicts and specifies the nature of concurrent bias, and predicts a tendency toward undermatching, which is sometimes observed in concurrent situations. The rate equation contradicts one feature of Herrnstein's hyperbola, viz., the theoretically required constancy of k. According to the rate equation, Herrnstein's k should vary directly with parameters of reinforcement such as amount or immediacy. Because of this prediction, the rate equation asserts that the conceptual framework of matching does not apply to single alternative responding. The issue of the constancy of k provides empirical grounds for distinguishing between Herrnstein's account and a linear system analysis of single alternative variable-interval responding.     

ZYGON'S 1996 EXPEDITION INTO NEUROSCIENCE AND RELIGION

Abstract. Neuroscience is in a period of explosive growth. To address the implications of the new findings for religion and science, Zyvon in 1996 published fifteen articles in this field. Although the authors'explorations of neuroscience and religion are various, three issues in particular are addressed repeatedly: (1) the nature of human identity, or hallmarks of humanness; (2) the nature and origin of religious consciousness; and (3) our means of discovering or constructing order and integration in the brain/mind, in the environment, and holistically. With these categories as templates, this article correlates the findings of the Zygon neuroscience contributors of 1996.     

Zur Rekonstruktion der Philosophischen Hermeneutik

Towards a reconstruction of philosophical hermeneutics. Following Nietzsche, Heidegger and, on the other hand, Cassirer and Wittgenstein, a philosophy of interpretation, i.e. a relativism of world-views, is at present increasing in continental as well as in analytical philosophy. From the basis of a critical fallibilism the shortcomings of the new epistemological antirealism are pointed out in general, and, hence, consequences are drawn for the more specialized case of metahermeneutics (hermeneutics being defined as a sort of pragmatical semiotics). A combination of realistic and antirealistic elements is recommended as unevitable. According to this, firstly, the key-concepts of hermeneutics must be differentiated, and, secondly, a fundamental set of criteria can be established that bridges the gap between metahermeneutics and hermeneutical practice.

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Der Artikel führt den überwiegend kritisch gerichteten Beitrag Thesen zur Philosophischen Hermeneutik, Internationale Zeitschrift für Philosophie 1993/1, 173–188 nach der konstruktiven und systematischen Seite hin weiter.     

A role for clinical psychology in health care and policy concerning the physical environment

Some persons adversely react to specific environments, while others are impervious or actually thrive. Medical attention often overlooks such sensitivities to the physical environment. Such sensitivities, including phobias and seasonal affectivity, fall within clinical psychology's purview. A theoretical/clinical approach called the Synchronous Systems Model, which defines and uses individual differences in people and in settings, could serve medical health care and policy. When specific people are matched appropriately with specific treatments within the most propitious settings, cost effectiveness and medical efficacy rise. Such documented accountability could make clinical psychologists central to triage of medical services as well as health care policy in these days of the shrinking health care dollar. The Synchronous Systems Model provides theory, supportive data, and clinical assessment devices to strengthen clinical psychology's role in medical settings.     

Building a research base for community services for children and families: What we know and what we need to learn

We examine the knowledge base for community-based mental health services for youth and their families. A brief historical perspective on the development of community services is presented, and the fundamental components of a comprehensive child mental health service system are described. Outcome studies for service components as well as the service system as a whole are summarized. Research related to the context of treatment, i.e., service setting, cost, is presented. The authors conclude that a research base for child and family services is emerging, but there is still a paucity of well designed studies that address the complexities of a community-based system as well as the critical outcome questions that need to be addressed. Finally, promising service system developments are described and recommendations for future research are presented.     

关于器官移植非优因素的哲学思考

目前器官移植是拯救器官功能衰竭患者较有效的措施,但同种及异种器官移植术中存在的大量非优因素决定了器官移植的局限性和过渡性。本文根据系统自组织理论,从哲学的角度指出：发掘人类器官组织的自组织能力必将是恢复患者衰竭器官功能最优化和最有前途的途径