An Unfinished Debate: What Are the Aims of Religion and Science?

I discuss the kinds of fundamental questions that must be addressed by people who develop theories about how religion and science are (or should be) related. After categorizing these questions as axiological, epistemological, ontological, or semantic, I focus on those that concern the goals of religion and science (the axiological issues). By distinguishing between epistemic and practical goals, individual and collective goals, and manifest and latent goals, I identify seven axiological questions. The various answers that religion/science theorists give or presuppose to these axiological questions help to explain why such deep, ongoing differences continue among them.     

Cognitive Science: What One Needs to Know

Cognitive science is a new paradigm that informs and involves several disciplines, including artificial intelligence, neuroscience, cognitive psychology, cognitive ethology, and the philosophy of mind. Cognitive science studies the mind as an information processor, with the computer often operating as a metaphor for the operations of the mind. Developments in the cognitive sciences stand to affect tremendously how we think of the mind and, consequently, how we think of theological and religious claims that concern the human subject. The unity of self, claims of human uniqueness, the relation of mind and body, human nature, and the personal agency of God are all areas of religious import in which the cognitive sciences need to be taken into account.     

Influence of Maternal Depressive Symptoms on Ratings of Childhood Behavior

This study uses information collected on two occasions from a probability sample of families with 5- to 12-year-old children (N = 1151) participating in a general population study in 1983 and follow-up in 1987. It evaluated the importance of maternal bias in the assessment of child behavior by comparing the relative strengths of association between maternal depression and childhood behavior and between maternal depression and mother reporting errors. Conduct problems and hyperactivity were measured as latent criterion variables constructed from mother, teacher, and youth (aged 12 to 16 years) ratings and their associations with maternal depression were modeled using covariance structure analysis. The analyses revealed that maternal depression was associated significantly with conduct problems ( = .35) and hyperactivity ( = .38) among 5- to 7-years-olds in 1983 but not 4 years later in 1987. None of the associations between maternal depression and mother reporting errors were significant. Among 8- to 12-year-olds in 1983, maternal depression was associated significantly not only with conduct problems ( = .17) and hyperactivity ( = .15) but also with mother rating errors of these behaviors ( = .13 and .17, respectively). Four years later in 1987 when this cohort was 12 to 16 years old, the only significant association was between maternal depression and conduct disorder ( = .25). Although evidence exists for associations between maternal depressed mood and mother rating errors, there also appears to be a substantive association between maternal depression and childhood behavior.     

Impulsivity and anxiety differences in cognitive inhibition

An identity negative priming task was employed to investigate cognitive inhibition in 245 undergraduates. The task presented consecutively a prime and a probe display that contained a target and a distractor. Negative priming is observed when subjects must respond to a target in the probe display that had been a distractor in the prime display. This task also served to study the Eriksen interference effect by comparing a condition in which the target and the distractor had the same identity with a condition in which they had different identities. Subjects completed the Sensitivity to Punishment and Sensitivity to Reward Questionnaire designed to measure Gray's anxiety and impulsivity dimensions. Results showed that impulsives had a lower cognitive inhibition than non-impulsives, whereas impulsive women also showed a greater Eriksen interference effect than non-impulsive women. Furthermore, no differences in task performance were found between anxious and non-anxious groups. Our discussion considers the importance of studying cognitive functioning in personality research.     

Shaping data collection congruent with experimental hypotheses

The influence of instructions and feedback from an experimenter on observational recordings of disruptive behavior was evaluated. Four subject-observers recorded four categories of disruptive behavior from videotapes of children in a classroom setting. Two sets of videotapes, labelled "baseline" and "treatment", were matched for rates of disruptive behavior in each category. The observers were told that two target behaviors were expected to decrease and the other two control behaviors were not expected to change during the treatment condition. During observational recording of treatment videotapes, the observers were given positive feedback when they reported decreases in the two target behaviors, and negative feedback when they reported either to change or increases in the two control behaviors. The target behaviors were recorded less frequently by observers, while recordings of control behaviors were unaffected during the treatment phase. These results suggest that contingent feedback to observers should be avoided as a possible source of bias in behavioral recordings.     

Ideals of rationality in dialogic

Needed for such dialogue games as dialectic are appropriate standards of fairness and rationality. The rules of procedure of dialectic must describe a game playable by actual human participants. The present paper centers on certain idealizations of the dialectician that are not allowable.     

Cognitive and marital factors in depression

The current investigation examines three groups of wives: (1) a group of nondepressed, nondiscordant community wives; (2) a group of nondepressed, discordant clinic wives; and (3) a group of depressed, discordant clinic wives. Groups were formed on the basis of structured interview responses and responses to a self-report inventory of depressive symptomatology. To be classified as depressed, wives were required to meet DSM III criteria for depression according to interview data and to exceed a Beck Depression Inventory score of 14. Both clinic groups showed equal levels of marital discord. Both nondepressed groups showed equally few cognitive errors. Accordingly, comparisons of these three groups allow us to test current interpersonal and cognitive theories of depression. The level of closeness in the marriage differentiated the depressed, discordant from the nondepressed, discordant wives despite their equal levels of overall marital discord. The level of depressive symptomatology was greater for the nondepressed clinic wives than it was for the community wives despite their equal levels of cognitive errors. Both closeness in the marriage and cognitive errors accounted for the unique variance in level of depression. Implications for current interpersonal and cognitive accounts of depression are discussed.Support for this research came in part from NIMH Grant 38390-02. Portions of this paper were presented at the 25th Annual Convention of the American Association for the Advancement of Behavior Therapy.     

The linear system theory's account of behavior maintained by variable-ratio schedules.

The mathematical theory of linear systems, which has been used successfully to describe behavior maintained by variable-interval schedules, is extended to describe behavior maintained by variable-ratio schedules. The result of the analysis is a pair of equations, one of which expresses response rate on a variable-ratio schedule as a function of the mean ratio requirement (n) that the schedule arranges. The other equation expresses response rate on a variable-ratio schedule as a function of reinforcement rate. Both equations accurately describe existing data from variable-ratio schedules. The theory accounts for two additional characteristics of behavior maintained by variable-ratio schedules; namely, the appearance of strained, two-valued (i.e., zero or very rapid) responding at large ns, and the abrupt cessation of responding at a boundary n. The theory also accounts for differences between behavior on variable-interval and variable-ratio schedules, including (a) the occurrence of strained responding on variable-ratio but not on variable-interval schedules, (b) the abrupt cessation of responding on occurrence of higher response rates on variable-ratio than on variable-interval schedules. Furthermore, given data from a series of variable-interval schedules and from a series of concurrent variable-ratio variable-interval schedules, the theory permits quantitative prediction of many properties of behavior on single-alternative variable-ratio schedules. The linear system theory's combined account of behavior on variable-interval and variable-ratio schedules is superior to existing versions of six other mathematical theories of variable-interval and variable-ratio responding.     

Further remarks on the role of cognition in the comparative analysis of behavior

Recent interest in comparative psychology has stimulated much research and debate concerning cognitive processes in animal behavior. The present paper relates to this general area by treating particular issues in the analysis of comparative cognition: specifically, how cognition is inferred from animal behavior; whether the postulation of intervening cognitive processes furthers our understanding of behavior; and how rival approaches help advance the science of behavior.     

Independence of sensitivity to relative reinforcement rate and discriminability in signal detection.

Six pigeons were trained to detect differences between two white stimuli, S1 and S2, differing in duration and arranged probabilistically on the center key of a three-key chamber. Detection performance was measured at two levels of discriminability. At one level, S1 was five seconds and S2 was thirty seconds. At the other level, S1 was twenty seconds and S2 was thirty seconds. The procedure was a standard signal-detection yes-no design in which stimulus-presentation probability was varied from .1 to .9 at both discriminability levels. On completion of the center-key stimulus, a peck on the center key darkened the center-key light and turned on the two red side keys. A left-key response was "correct" on S1 trials, and a right-key response was "correct" on S2 trials. Correct responses produced food reinforcement on a variable-ratio 1.3 schedule. Incorrect responses produced three second blackout. Discriminability was higher for the five-second versus thirty-second conditions than for the twenty-second versus thirty-second conditions, but there were no differences in sensitivity of behavior to reinforcement variation for the two stimulus pairs. Response bias was a function of the relative reinforcement rate for correct choice responses.