Suppression of operant behavior and schedule-induced licking in rats

The first experiment studied the effects of punishment on rats' lever pressing maintained by a fixed-interval schedule of food reinforcement and on the associated schedule-induced licking. When licking was followed by shock, licking was suppressed but lever pressing was largely unaffected. When lever pressing was followed by shock, lever pressing was suppressed but licking was unaffected. In both cases, the punished behavior recovered its previous unpunished level when the shocks were discontinued. In a second experiment, the rats' lever pressing was maintained by a variable-interval schedule of food reinforcement under which polydipsic licking also developed. Both lever pressing and licking were partially suppressed during a stimulus correlated with occasional unavoidable electric shocks. With a higher shock intensity, both behaviors were suppressed further. Both lever pressing and licking recovered their previous levels when shocks were discontinued. These results show that schedule-induced licking, which has been described as adjunctive behavior, can be suppressed by procedures that suppress reinforced lever pressing, an operant behavior.     

Convergence in the physical appearance of spouses

This study attempted to determine whether people who live with each other for a long period of time grow physically similar in their facial features. Photographs of couples when they were first married and 25 years later were judged for physical similarity and for the likelihood that they were married. The results showed that there is indeed an increase in apparent similarity after 25 years of cohabitation. Moreover, increase in resemblance was associated with greater reported marital happiness. Among the explanations of this phenomenon that were examined, one based on a theory of emotional efference emerged as promising. This theory proposes that emotional processes produce vascular changes that are, in part, regulated by facial musculature. The facial muscles are said to act as ligatures on veins and arteries, and they thereby are able to divert blood from, or direct blood to, the brain. An implication of the vascular theory of emotional efference is that habitual use of facial musculature may permanently affect the physical features of the face. The implication holds further that two people who live with each other for a longer period of time, by virtue of repeated empathic mimicry, would grow physically similar in their facial features. Kin resemblance, therefore, may not be simply a matter of common genes but also a matter of prolonged social contact.A. L.Dear A. L.: As far as physical appearance is concerned, likes seem to attract. Some experts feel that this resemblance may partly be explained by the fact that couples who've lived together for some time usually eat the same diet and share the same habits. The Joyce Brothers Column April 1985 This work was supported by Grant BNS-8505981 from the National Science Foundation. We wish to thank all those who offered their photographs for the purposes of this study, and Joseph R. Zajonc for his helpful suggestions.     

Personality correlates of the attitude toward women scale

The full and short versions of the Attitudes Towards Women Scale, the Eysenck Personality Questionnaire, the Trait Anxiety Scale and the Group Embedded Figures Test were administered to 95 freshmen (male and female). Results indicated a relationship between liberal attitudes toward women and emotional stability. Scores on the Attitudes Toward Women Scale also tended to be independent of Lie scores.     

Units of episodic memory in perceptual recognition

Two studies examined the cognitive units of sentence memory using a perceptual recognition task. Four candidate cognitive units were considered: concepts, propositions, integrated propositions, and nonintegrated propositions. Subjects first received a list of acquisition sentences and then were asked to reproduce sentences presented under a white-noise mask. These masked sentences were replicas of the acquisition sentences, were formed of recombined clauses from the acquisition sentences, or were formed of recombined words from the acquisition sentences. Reproduction accuracy was employed as the dependent measure. Results supported propositions (operationalized by clauses) as cognitive units of episodic memory. No conclusive evidence was obtained for concepts, integrated propositions, or nonintegrated propositions as cognitive units. The utility of perceptual recognition tasks for studying the cognitive units of episodic memory is discussed.     

TREATMENT OF SELF-INJURIOUS BEHAVIOR USING A WATER MIST: INITIAL RESPONSE SUPPRESSION AND GENERALIZATION

This study evaluated the effects of a fine mist of water applied to the face contingent upon self-injurious behavior (SIB) exhibited by profoundly retarded persons. In Experiment 1, results of individual reversal designs showed substantial reductions in a variety of SIB's (mouthing, hand biting, skin tearing, and head banging) for seven participants. In Experiment 2, two participants who frequently bit their hands were each observed in two different settings. Following initial baselines in each setting, a series of manipulations was undertaken to compare the effects of mild verbal punishment (“No”) with those of a combined treatment (“No” plus mist procedure). Results in one setting indicated that “No” suppressed SIB only after it was first paired with the water mist. Data also suggested that, once acquired, the punishing properties of “No” could be extended to a second setting in which the mist was never applied, and that these effects could be generalized across therapists. Results of these experiments indicate that the water mist procedure may be an effective alternative to traditional punishment techniques. Although conclusions regarding generalization are limited due to the brevity of the maintenance conditions, the data suggest that treatment gains may be transferred to more acceptable forms of social punishment and reinforcement.     

THE MODERATING EFFECTS OF ACTIVITY LEVEL AND LOCUS OF CONTROL IN THE PERSONAL CONTROL-JOB STRESS RELATIONSHIP

The present study examines the moderating effects of two personality types in the personal control-job stress relationship. Individuals with a high activity level and belief in powerful others (dimension of external locus of control) had the strongest negative relationship between personal control and psychological anxiety. In addition, individuals with a high belief in chance or fate (dimension of external locus of control) had the strongest negative relationship between personal control and pulse rate. The findings suggest that employees with a high activity level and/or external locus of control benefit the most from having control over their work environment.     

Mapping the Growth of Heterogeneous Forms of Externalizing Problem Behavior Between Early Childhood and Adolescence:A Comparison of Parent and Teacher Ratings

We compared long-term growth patterns in teachers’ and mothers’ ratings of Overt Aggression, Covert Aggression, Oppositional Defiance, Impulsivity/inattention, and Emotion Dysregulation across developmental periods spanning kindergarten through grade 8 (ages 5 to 13 years). We also determined whether salient background characteristics and measures of child temperament and parenting risk differentially predicted growth in discrete categories of child externalizing symptoms across development. Participants were 549 kindergarten-age children (51% male; 83% European American; 17% African American) whose problem behaviors were rated by teachers and parents each successive year of development through 8th grade. Latent growth curve analyses were performed for each component scale, contrasting with an overall index of externalizing, in a piecewise fashion encompassing two periods of development: K-1and grades 1–8. Our findings showed that there were meaningful differences and similarities between informants in their levels of concern about specific forms of externalizing problems, patterns of change in problem behavior reports across development, and in the extent to which their ratings of specific problems were associated with distal and proximal covariates. Thus, these data provided novel information about issues that have received scant empirical attention and have important implications for understanding the development and prevention of children’s long-term externalizing problems.