Physiological and subjective measures of anxiety during flooding

Patterns of physiological arousal and subjective reports of anxiety were examined during individual sessions of imaginal flooding of five phobic subjects. A curvilinear pattern of increased, followed by decreased, arousal characterized changes in heart rate, respiration rate and subjective anxiety. Heart rate tended to reach its peak level before respiration rate and subjective anxiety. Intercorrelations between these measures were generally positive and significant. Comparisons between periods of high and low subjective arousal revealed a significantly greater correlation for low than for high arousal only for the subjective anxiety by respiration-rate correlation.     

Willingness to Help a Stranger: The Effects of Social Context and Opinion Similarity1

Two field experiments investigate how information about aspects of the social environment affects willingness to help others who are similar or dissimilar. Subjects were pedestrians who found a lost packet of materials containing information about the opinions of the packet's loser and a survey report which claimed that the quality of life in the neighborhood had either improved or deteriorated. In the fiist study, the opinions were varied in order to create different degrees of opinion similarity between the loser and subject. Results showed that relatively slight differences between the loser's and subject's opinions made subjects unwilling to help (return the lost packet) when information about the social environment suggested a negative state of affairs, e.g., quality of life deteriorating. However, when information about the social environment suggested a positive state of affairs, subjects were willing to help, even if there was little similarity of opinion. In the second study, subjects learned that the loser of the packet agreed with their views on one opinion but disagreed on another. In this study, one of the two opinions concerned the same social issue as the one described in the survey report. Results demonstrated that subjects helped when there was agreement on the social issue that was also highlighted in survey reports of a negative state of affairs in the social environment and withheld help when there was disagreement on this issue. There were trends for the same result with information about a positive state of affairs in the social world.     

Effects of sexual versus fear arousal on alcohol consumption in college males

To compare the effects of pleasant and aversive arousal on alcohol consumption, 18 male undergraduates had three weekly sessions to separately view erotic, mutilation or neutral slides in a simulated memory experiment. Following exposure to the slides, they received access to alcoholic and nonalcoholic beverages, which were presented to half the subjects in a taste rating task, and to half as the result of engaging in an operant lever-press task. Subjects believed these tasks to be distractors during a purported retention interval. Self-report instruments and basal skin conductance confirmed the success of the affective manipulations. However, only the subjects using the taste task after viewing erotic slides significantly increased alcohol consumption. These results question a tension reduction model of drinking and qualify the contribution of autonomic arousal to motivation for drinking.     

CONTINGENT EXERCISE: A MILD BUT POWERFUL PROCEDURE FOR SUPPRESSING INAPPROPRIATE VERBAL AND AGGRESSIVE BEHAVIOR

Two single-subject experiments were conducted in public school classrooms for severely emotionally disturbed children. Both experiments investigated the effects of a treatment requiring a child to exhibit a simple exercise task after a verbal or aggressive response, using reversal and multiple-baseline designs. The independent variable, contingent exercise, required standing up and sitting on the floor five to ten times contingent on an inappropriate behavior. It was found that contingent exercise was easy to carry out, and following it, the child quickly returned to the learning task that had been interrupted by the inappropriate behavior. The contingent exercise procedure required a minimum of prompting or manual guidance. Although contingent exercise was not topographically related to the inappropriate response, it decreased those responses dramatically. The results suggested that contingent exercise was not only more powerful than DRO but also could be administered independently. It was concluded that contingent exercise may constitute an alternative procedure that can be used by therapists confronted with severely abnormal behaviors. It would appear to be particularly relevant in settings where procedures such as timeout and painful consequences find restricted use. Finally, a number of guidelines have been proposed as a safeguard against the misuse of this mild but powerful procedure.     

Near-death experience: A review from pastoral psychology

Published interpretations of near-death experience from the vantage of pastoral psychology are virtually nonexistent. Subjective reports from survivors and investigative contributions from other disciplines are scattered and diverse. A comparison of twenty-one near-death experience transcendence accounts with the available literature may not only offer direction for further systematic inquiry but also contribute to our pastoral understanding of life and death.He is a candidate for the S.T.D. in pastoral psychology at San Francisco Theological Seminary, San Anselmo, California, and a Fellow in the American Association of Pastoral Counselors.The author gratefully acknowledges the help of his brother, Michael B. Sabom. M.D., of the Emory University Medical School, Atlanta. Georgia, in the preparation of this article, it is to his continuing pastoral work with NDE survivors that this article is dedicated.     

Retardation of autoshaping following pretraining with unpredictable food: Effects of changing the context between pretraining and testing

In Experiment 1, pigeons exposed to US ONLY pretraining were observed to be retarded in the acquisition of autoshaping relative to naive controls; however, gross changes in contextual stimuli between pretraining and testing alleviated the retardation effect. In Experiment 2, groups of pigeons exposed to CS ONLY, US ONLY, or random CS-US presentations (TRC) were tested for the acquisition of autoshaping. The US ONLY and TRC groups were retarded relative to naive controls. The context change manipulation eliminated the US ONLY retardation effect and attenuated, but did not eliminate, the TRC retardation effect. Context blocking accounts for the US ONLY effect and contributes to the TRC effect; however, context-independent retardation following TRC pretraining suggests the operation of the learned irrelevance cognition.     

Discriminative responding on associated mixed and multiple schedules as a function of food and ICS reinforcement

Performance on associated mixed and multiple variable-interval-extinction schedules was studied as a function of food versus intracranial stimulation (ICS) reinforcement. For the mixed schedule, differential responding was greater for an ICS reinforcement group than for a food reinforcement group, demonstrating that conditions affecting resistance to extinction help to determine the control exerted by a mixed schedule. Performance on the multiple schedule demonstrated greater differential responding for an ICS group than for a food reinforcement group during the early training sessions, indicating that the control exerted by mixed schedules interacts with that exerted by the exteroceptive discriminative stimuli. The results suggest that the influence of the associated mixed schedule on discriminative responding would be greater, the greater the difficulty of the stimulus discrimination.     

Reinforcement of eye movement with concurrent schedules

Human macrosaccadic eye movements to two areas of a four-dial display were conditioned by concurrent variable-interval schedules of signals. Reinforcers (signals) were delivered to the two right-hand dials on one schedule and to the two left-hand dials on another, independent schedule. The use of a changeover delay between crossover eye movements and reinforcement had the effect of changing the pattern of scanning from fixating four dials in succession or in a Z-shaped pattern to scanning vertically the dials on either side with fewer crossovers. In the presence of a changeover delay, subjects matched relative eye-movement rates and relative reinforcement rates on each schedule. Rate of crossover eye movements, with a changeover delay in effect, was also inversely related to the difference in reinforcements arranged by the concurrent schedules. The results suggest that for stimuli whose critical components are arranged spatially, conditioned eye movements play an important part in selective stimulus control.     

Linear representation of temporal location and Stevens’s law

Ss were asked to indicate points 1 week, 7 months, 3 years, and 9 years in the past and future on two time lines representing birth to present and present to death. Data for 90 college-age Ss fit a psychophysical power function following Stevens’s law. with negatively accelerated growth indicating proportionately greater linear representation of periods nearer to the present. Variability was greater for the representations of the future than of the past, with monotonic increases in variability as distance from the present increased.