Commentary on high-performance computing and its promises for the behavioral sciences

Even with the advent of magnetic resonance imaging and other sophisticated physiological research, we have not made a great leap forward in creating a physiological map relating each neuron to its activity involved in simple day-to-day psychological processes. In contrast to notable progress in human vision research, we have yet to model the simplest of our daily memory processes in memory research.     

High-performance computer applications in the behavioral sciences

This symposium revisited the 1985 conference on Advanced Computing for Psychology. That meeting examined the application of new supercomputers in the behavioral sciences. The present symposium reviewed high-performance computing as applied to psychological models, human vision, neuralphysiological processes, and statistical analysis. The recent past and the projected future of high-performance computing in the behavioral sciences were evaluated.     

Interdependent and independent group contingencies with immediate and delayed reinforcement for controlling classroom behavior

Group-oriented contingency systems have enjoyed widespread acceptability, use, and success in classroom settings. Despite their increased use, group contingency systems have at least two disadvantages. First, one or more students may spoil reinforcement for the rest of the class, and, second, the behavior of the entire class often deteriorates as a result of the loss of access to reinforcement. The present study investigated the use of an interdependent group contingency for on-task and disruptive behavior along with an independent group contingency for disruptive behavior to prevent children from spoiling group reinforcement. Immediate and delayed consequences were built into the program to circumvent behavioral deterioration. The results demonstrated that the combination of group contingency systems and immediate and delayed consequences were effective in reducing levels of off-task and disruptive behavior and in increasing on-task behavior. The findings were discussed in terms of the combination of treatment components, potential for generalization, the need for empirical research on social validity, and the practicality and effectiveness of this intervention package for psychologists in the schools.     

Children's causal attributions for performance on sex-stereotypic tasks

In two experiments, third, fifth, and eleventh graders attributed males' and females' successes and failures on sex-stereotypic tasks to (a) task difficulty, (b) effort, (c) luck, or (d) skill. Male and female children responded similarly within and across age. Attributions for successes varied with congruity of actor and task stereotypes; effort was emphasized for sex-inconsistent relative to sex-consistent performance. However, over-riding sex-of-actor biases emerged in explanations for failures, suggesting failures were treated as anticipated outcomes for females. Results are considered in terms of maintenance of sex-role stereotypes beginning early in childhood.A portion of the first experiment reported in this article was presented at the annual meeting of the Eastern Psychological Association, Washington, D. C., March 1978.     

Assertive training: An adjunct to fluency shaping

“Assertive Training” has been utilized as an adjunct therapy in a six week residential program at Walter Reed Army Medical Center. The speech pathology staff in conjunction with the psychology staff determined that a persistent problem with long term success after patients were dismissed from therapy was largely due to a “behavioral deficit” in their interpersonal verbal confrontations. The anxiety resulting from such communication failure simply chips away at the self confidence needed to maintain a working level of fluency, resulting in a “snowballing” effect back to dysfluency.

Thus, the goals and procedures of assertive training for stutterers are discussed as a means to shape more effective skills in relating to others in difficult situations. Pre, post and six month follow-up data are presented.     

Drug prevention in a community setting: A longitudinal study of the relative effectiveness of a three-year primary prevention program in boys & girls clubs across the nation

Tested the effectiveness of a youth drug prevention program in a community setting. Boys & Girls Clubs of America's Stay SMART program, adapted from a school-based personal and social competence drug prevention program, was offered, with and without a 2-year booster program, to 13-year-old members of Boys & Girls Clubs. Over 27 months, (a) 5 Boys & Girls Clubs offered the Stay SMART program, (b) 5 Boys & Girls Clubs offered the Stay SMART program with the booster programs, and (c) 4 Boys & Girls Clubs served as a control group. The Stay SMART program alone and the Stay SMART program with the booster programs showed effects for marijuana-related behavior, cigarette-related behavior, alcohol-related behavior, overall drug-related behavior, and knowledge concerning drug use. The Stay SMART program with the booster programs produced additional effects for alcohol attitudes and marijuana attitudes after each year of booster programs. Results suggest that a school-based personal and social competence program can be adapted effectively to a community setting and that booster programs might enhance program effects. Implications for alternative community models of prevention are discussed. At the time of the study, the parent organization was Boys Clubs of America.This research was supported by a grant from the Office for Substance Abuse Prevention, ADAMHA, Public Health Service, Department of Health and Human Services, Grant No. 1 H84 AD 00903-01.     

Definition and Power: Toward Authority without Privilege

Feminists have urged women to take semantic authority. I explain what such authority is, how it depends upon community recognition, and how it differs from privilege and from authority as usually conceived under patriarchy. Understanding its nature and limits is an important part of attaining it. Understanding the role of community explains why separatism is the logical conclusion of this project and why separatism is valuable even to those who do not separate.     

The expression of memorization in early childhood

This experiment examined the expression and effectiveness of memorization in young children. Sixty children at each of the ages 4, 5, and 6 were randomly assigned to a memory group or to one of two control groups. All of the children were told that they could play with a group of toys during a brief activity period; the children in the memory condition were also instructed to memorize a specified subset of the toys. Mnemonic mediators were identified on the basis of differences in the activity period behaviors of children given memory and play instructions. Relative to the children in the play groups, the children in the memory conditions played with the toys less; further, their use of naming and visual examination as mnemonic mediators differentiated the groups at all ages and increased with age. Only the oldest subjects given memory instructions, however, demonstrated superior recall. The relationships between activity period behavior and recall among the different conditions were explored with regression techniques. Although previous research has focused on identifying the earliest use of memory strategies, the present findings underscore the importance of examining the development of these skills.     

A partial resolution of the paradox of interference: The role of integrating knowledge

It has been noted that models of memory that posit retrieval interference imply that the more one knows about a topic, the harder it is to retrieve any one of these facts. Smith, Adams, and Schorr (Cognitive Psychology, 1978, 10, 438–464) regard this to be a paradox and postulate that people use world knowledge to integrate various facts about a concept and thereby avoid interference. Exploring this issue further in two experiments we discovered that integration of facts alleviates interference only when a person can perform his memory task by simply making a consistency judgment and can avoid the need to retrieve a specific fact. When foils force subjects to retrieve the specific assertion, the interference occurs among integrated facts as among unrelated facts. It appears that, when possible, subjects will judge whether they have seen a fact simply by judging if it is related to (consistent with) a theme they have studied. In other words, people judge themes rather than facts. Consistent with this interpretation, we found interference among themes; that is, the more themes were associated with a concept, the greater the interference.     

Effects of stimulus variability on perception and representation of spoken words in memory

A series of experiments was conducted to investigate the effects of stimulus variability on the memory representations for spoken words. A serial recall task was used to study the effects of changes in speaking rate, talker variability, and overall amplitude on the initial encoding, rehearsal, and recall of lists of spoken words. Interstimulus interval (ISI) was manipulated to determine the time course and nature of processing. The results indicated that at short ISIs, variations in both talker and speaking rate imposed a processing cost that was reflected in poorer serial recall for the primacy portion of word lists. At longer ISIs, however, variation in talker characteristics resulted in improved recall in initial list positions, whereas variation in speaking rate had no effect on recall performance. Amplitude variability had no effect on serial recall across all ISIs. Taken together, these results suggest that encoding of stimulus dimensions such as talker characteristics, speaking rate, and overall amplitude may be the result of distinct perceptual operations. The effects of these sources of stimulus variability in speech are discussed with regard to perceptual saliency, processing demands, and memory representation for spoken words.