Exercise, changes in aerobic capacity, and changes in self-perceptions: An experimental investigation

Subjects in an exercise training condition participated in a 10-week aerobic exercise class, whereas subjects in waiting-list control and independent control conditions did not. The results indicated that subjects in the training condition evidenced reliably greater improvements in physical fitness (aerobic capacity) and reported reliably greater improvements in their abilities and confidence in both the physical area (e.g., ability to run distances) and nonphysical area (e.g., frustration tolerance) than did subjects in the control conditions. On the other hand, improvements in physical fitness were not related to reported improvements in abilities and confidence. These findings are of interest because they indicate that some of the important personal changes that are associated with physical fitness training are not due to changes in fitness, but appear to be due to other factors (e.g., group participation and expectancies).     

TELEOLOGY PAST AND PRESENT

Abstract. Current teleology in Western biology, philosophy, and theology draws on resources from four main Western philosophers. (1) Plato's Timaeus shows how to interpret the universe as the handiwork of a purposive Creator who subordinates secondary, necessary, causes to primary, intelligent, causes. (2) Aristotle's Physics sets forth purpose as implicit in the nature of things. Purposes of different sorts inhere in different types of being, and everything has a natural function. Living things grow to actualize the potentials of the goal whose principle they bear within themselves. (3) Kant's Critique of Judgment denies that purpose is anything that human beings can know, strictly speaking. Nevertheless, purpose is a concept we must use to make sense of biological systems. (4) Hegel's Philosophy of Nature articulates organic systems as dialectically including and transcending mechanical and chemical systems. Teleological themes persist, in different ways, in contemporary discussions; I consider two lines of criticism of traditional teleology—by Richard Dawkins and Stephen Jay Gould—and one line that continues traditional teleology in an updated way—by Holmes Rolston, III.     

试论罗尔斯顿环境伦理学的理论主旨

罗尔斯顿从整个西方伦理思想发展的角度出发,认为道德是人的存在方式,环境伦理的产生不是要推翻或取代人际伦理,而是要为自然共同体中的人类确立生存方式。人类道德之所以要观照自然生态系统,是因为自然生态系统具有自身的内在价值和存在目的,以文化方式生存于其中的人类须对此给予道德的尊重。环境伦理与人际伦理共同构成了完整的人之伦理,它们都是人的生存之道。     

Multiple sessions of systolic blood pressure biofeedback: Its effects on ability to control systolic pressure during training,after training,and its effects on pulse rate

Seventy-one normotensive subjects participated in four training sessions in which they were either (a) instructed to increase their blood pressure, (b) instructed to decrease their blood pressure, or (c) not instructed to change their blood pressure. The subjects either (a) were provided with biofeedback concerning systolic blood pressure or (b) were not provided with biofeedback concerning systolic blood pressure. After the last training session, subjects participated in a transfer session in which they were again instructed concerning changes in pressure but were not provided with biofeedback. Analyses conducted on data from the training and transfer sessions indicated that subjects who were instructed to increase pressure and given biofeedback to aid them showed higher pressure than subjects in other conditions and that there were no differences among those other conditions; that is, biofeedback was effective for teaching subjects to increase pressure but was not effective for teaching subjects to decrease pressure. Additional training sessions did not add to the effect achieved in the first training session. During training sessions, subjects who were instructed to increase pressure showed higher heart rates than subjects in other conditions. The results raise questions concerning the interpretation of earlier experiments that did not include no-treatment, instructions-only, and attention control conditions.     

DIVINE GLORY IN A DARWINIAN WORLD

Faced with the ambiguities of this world, in which ugliness and suffering co‐exist with beauty, the article rejects the attribution of disvalues to a Fall‐event. Instead it faces God's involvement even in violence and ugliness. It explores the concept of divine glory, understood principally as a sign of the divine reality. This includes both the great theophanies of the Hebrew Bible and Jesus’ glorification in his Passion and Crucifixion. It then considers the contemplation of the natural world, using the terminology of “inscape” and “instress.” Divine glory can be discerned even in events as tragic as the Indian Ocean tsunami or the activity of the malarial mosquito. A full Christian contemplation of these events will include scientific understanding and poetic apprehension, and consideration of soteriology and eschatology as well as the theology of creation. Glory is understood to include God's power and sovereignty, and also the divine humility and sacrifice.     

Effects of instructions and biofeedback on EEG-alpha production and the effects of EEG-alpha biofeedback training for controlling arousal in a subsequent stressful situation

In Phase One, 44 subjects participated in a 2 (instructions to increase alpha, no instructions to increase alpha) × 2 (alpha biofeedback, no alpha biofeedback) factorial experiment. Results indicated that increases in alpha production were due to instructions to increase alpha and that biofeedback had no effect on alpha production. In Phase Two, the 44 subjects from Phase One were exposed to a threat of shock whereas 11 additional subjects in a control condition were not. The design employed in Phase Two was a 2 (previous instructions and stress, no previous instructions and stress) × 2 (previous biofeedback and stress, no previous biofeedback and stress) plus 1 (no previous instructions/no previous biofeedback, no stress). Results indicated that the threat of shock was effective in increasing arousal (as measured by heart rate and skin resistance) but previous EEG-alpha biofeedback training was not effective in helping subjects decrease arousal while in the stressful situation. The results indicate that it is the instructions (and related information concerning alpha) rather than the biofeedback that is critical in alpha biofeedback training and that this training does not appear to have utility for controlling arousal under stress.     

Speech abnormalities in seizures: a comparison of absence and partial complex seizures

In order to determine whether speech changes are useful in differentiating seizure types, a study was done in which speech abnormalities during two distinct seizure types, partial complex and absence seizures, were compared. Speech changes noted during prolonged electroencephalographic and video monitoring were compared in 16 patients with 47 partial complex seizures and 19 patients with 95 absence seizures. Speech changes were common during both seizure types. Although some significant differences in speech patterns were noted in the two seizure types, the degree of overlap was such to preclude using speech changes alone as the sole clinical criteria in differentiating the seizures.     

Arousal transfer: The influence of fear arousal on subsequent sexual arousal for subjects with high and low sex guilt

Male subjects (N = 128) with high or low sex guilt either were or were not threatened with shock (fear arousal manipulation) and then viewed either an erotic or a neutral film (sex arousal manipulation). Then all subjects viewed and rated slides of attractive women and slides of landscapes (neutral control slides). If fear arousal was specifically transferred to sexual arousal as is often predicted rather than simply causing a general increase in arousal, then it would be expected that subjects who had been exposed to the threat would show high arousal in response to the slides of women and low arousal to the slides of landscapes, whereas subjects who had not been threatened would show low arousal to both the slides of women and landscapes. Physiological (pulse rate, skin resistance), self-report, and word association measures consistently indicated that (a) both of the arousal manipulations were effective, (b) the slides of women were arousing, (c) sex guilt influenced responses as would be expected from previous research, but (d) did not indicate support for arousal transference. These findings (a) provide information concerning the influence of guilt on drives, (b) raise questions about the transfer of arousal that was noted in less controlled investigations, and (c) highlight the need for additional controls in research of this type.     

APOLOGIA PRO SCRIPTURA SUA, OR MAYBE WE GOT IT RIGHT AFTER ALL

Abstract. A summary of the progress of biogenetic structuralism as an approach to the social and behavioral sciences is presented, from the publication of Biogenetic Structuralism in 1974 to the present. The difficulty that many scholars have found integrating neuroan-thropology and comparative ethology into an understanding of cultural, and particularly of religious, phenomena over the past almost two decades is considered. More specifically, the articles of James Ashbrook and Mary Lynn Dell published in the same June 1993 issue of Zygon as this article are analyzed and responded to. These authors critique Eugene d'Aquili's work of integrating neuropsychology and religious experience primarily by analyzing Brain, Symbol & Experience , which d'Aquili co-authored with Charles Laughlin, Jr., and John McManus, H. Rodney Holmes's article in the same issue of Zygon analyzes the whole corpus of d'Aquili's religion and science work as it appeared over the years in the pages of Zygon and in other articles and books as well as in Brain, Symbol & Experience. This critique is likewise carefully considered and responded to. Finally a proposed trajectory of d'Aquili's (and Andrew Newberg's) future work in their ongoing project integrating neuropsychology and religious experience is elaborated. This involves, not only expansion of their general theoretical approach, but also empirical testing of hypotheses relating brain function to religious experience using PET scanning and some newer MRI visualization techniques.