Tropisms

In a simultaneous brightness discrimination reversal task, 96 third- and fourth-grade children were either verbally reinforced for correct responses (Rn), verbally punished for incorrect responses (Wn), or verbally reinforced for correct and punished for incorrect responses (RW) at either of two levels of task complexity (1 vs. 3 irrelevant dimensions) subsequent to either criterion or overtraining on the original problem. Regardless of task complexity, performance on the original problem was nearly equivalent for the RW and Wn combinations, and both were superior to the Rn combination. At all levels of task complexity and training, the RW and Wn S s reversed at similar rates, and both groups reversed faster than the Rn Ss.     

Regional Differences in Masculinity-Femininity Responses

Summary

Attitude tasks, which were designed to be similar to the nonnormative verbal operant Taffel task in terms of availability of response classes and/or explicit presentation of response classes, yielded results that were consistent with results obtained with the verbal operant task. Specifically, the present attitude conditioning experiment yielded a large number of aware Ss, and conditioning effects only for aware Ss. When sources of complexity were eliminated from normative tasks, Ss did not appear to perceive and interact with them in a fashion that is fundamentally different from the way in which they deal with nonnormative tasks.     

The Measurement of Retinal Fatigue to Achromatic Stimulation–I

Experiment I was conducted to investigate memory in a concept identification (CI) problem as a function of the number of trials that precede the recall task. It was found that the recall performance on the initial trials of CI problems was quite good, but declined rapidly when the recall test was given on later trials. It was pointed out that the bulk of the solutions to CI problems are obtained by Ss during the initial trials where an S has good recall for past stimuli. In Experiment II, recall by Ss in a normal CI problem was compared to the recall by Ss in an incidental learning control group. As the performance of Ss in a normal CI problem was significantly better, it was concluded that Ss actively try to store and retain information during their search for a solution.     

A Psychometric Comparison of Narcotic Addicts With Hospital Attendants

This study sought to determine the effect of a single intraperitoneal injection of methylchloroethamine on the long-term activity response of immature, male, Holtzmann albino rats. The 10 experimental Ss showed a significant progressive decline in activity up to 110 days after injection. The activity of the control Ss over the same period showed random variation. A subsidiary finding was a significantly faster weight gain for the experimental Ss than for the control Ss.     

Experimenter Behavior as an Unintended Determinant of Experimental Results

Sound motion pictures were made of 19 Es conducting a person perception experiment with 53 Ss. Ss' task was to rate the degree of success or failure of people pictured in photos. From some of the Ss, Es had been led to expect ratings of success and from some ratings of failure. Actually, Ss were assigned at random to the “success-perceiving” or “failure-perceiving” group, Es showed significant behavioral variation in the way in which they conducted the experiment, Es whose experimental behavior reflected greater interpersonal involvement or warmth obtained ratings of the photos as more successful, Es whose experimental behavior reflected a greater task orientation, greater competence, and a more professional manner obtained ratings significantly more in accordance with their expectancy, regardless of the particular nature of that expectancy.     

Emotional target cues eliminate age differences in prospective memory

Cue saliency is known to influence prospective memory performance, whereby perceptually or conceptually distinct cues facilitate remembering and attenuate adult age-related deficits. The present study investigated whether similar benefits for older adults are also seen for emotional valence. A total of 41 older and 41 younger adults performed a prospective memory task in which the emotional valence of the prospective memory cues was manipulated. Emotionally valenced cues increased prospective memory performance across both groups. Age deficits were only observed when neutral (but not positive or negative) prospective cues were presented. Findings are consistent with predictions that salient cues facilitate participants' prospective memory performance and reduce age-related differences, while extending the concept of saliency to include emotional valence.     

An Investigation of the Nature of Non-Directive Psychotherapy

An experiment was performed to assess the effects of mental age (MA) and external cues on response inhibition in the mentally retarded. Twelve Ss were presented with an experimental task which required that they withhold responding for five or more seconds before pressing a key to obtain reinforcement. For half the Ss the key was lighted (cued) during the waiting interval, while it was unlighted (uncued) for the other half. The results indicate that (a) response inhibition increased with MA and (b) MA differences might have been due to an inability to mediate the delay interval. The results were interpreted in terms of possible mediating mechanisms and implications for training inhibitory performance in the mentally retarded.     

Value Hierarchies of French Catholics Committed to the Fight Against AIDS

Summary

An attempt was made to create the social satiation effect via vicarious learning. Second-grade boys and girls from middle class homes in a Jerusalem school observed other children being administered a short treatment in which the stimulus word Yafeh (“Good”) was presented by E twice (low-satiation) or 20 times (high-satiation). Immediately thereafter, E administered to the observers a 75-trial binary discrimination task, to test the efficacy of the word Yafeh as a reinforcer. The control groups consisted of Ss treated and tested by the same E. A typical satiation effect (i.e., decreased performance of the group presented with 20 stimuli) was observed for the control groups, but no difference was found between groups of Ss observing the high- and low-satiation treatments. It was thus concluded that social satiation had not been learned vicariously. The post-treatment inquiry on the Ss who were observed by the experimental Ss revealed that these children were aware of the frequency of stimuli presented in the treatment. However, the cognitive mechanism hypothesized to mediate the social satiation effect—perceived lack of contingency—was not confirmed by their verbal reports.     

Instinct,Heredity, and Social Tradition

Summary

The influence of physical attractiveness and warmth of a model on imitation and social perception in adults was assessed in this study with the use of 108 male and female college students. The Ss were randomly paired with a model who, depending on experimental conditions, was either a male or female, of high or low facial attractiveness, and who interacted with the S in a warm or cold manner. The Ss were then placed in a task situation which provided an opportunity to imitate the model, after which the Ss were asked to rate their experience and the model's personality. Warmth of the model was a more influential determinant of imitation, personality rating, and experience than physical attractiveness. However, the warmth affect was influenced by sex of the model and sex of the S. Possible explanations for the warmth effect were explored.     

A Study of Friendship Choices in College in Relation to Church Affiliation,in-Church Preferences,Family Size,and Length of Enrollment in College

Summary

The purpose of the present study was to compare the body-buffer zones of 15 violent and 15 nonviolent male colored prisoners in South Africa, both between and within each group, and to make cross-cultural comparisons between the present and previous data. The mean age of the Ss in the violent group was 33.0 years, and 32.4 years in the nonviolent group. The body-buffer zone was measured by means of a behavioral task, and the results supported previous findings in that the violent Ss had significantly larger mean zones than the violent ones (p < .01). However, the zones for the present Ss were considerably larger than those of Ss used in previous studies, a fact that may be ascribed to cultural differences.     

Evaluation apprehension and response withholding in solution of anagrams

Sixty male Ss who were classified as high or low scorers on the Sarason Test Anxiety Scale performed a difficult anagrams task either alone, before a passively observing experimenter or in the presence of an experimenter who both observed and evaluated the S's performance. Ss who were high in test anxiety attempted fewer anagrams and had fewer correct solutions in the Evaluated condition than in the Alone condition, but also had a higher proportion of correct solutions out of total attempts. Low test-anxiety Ss did not show variable performance across conditions for any measure. Follow-up studies showed that when Ss were encouraged to attempt partial solutions neither test anxiety nor experimental treatment influenced any of the measures of performance. State anxiety change scores from baseline to post-treatment assessment showed a generally negative correlation between anxiety and number of anagrams attempted. The results indicate that fear of failure engendered by test anxiety and experimenter evaluation caused Ss to withhold responding.     

Leadership predictors of innovation and task performance: Subordinates' self‐esteem and self‐presentation as moderators

This study examined self‐related subordinate variables as moderators of relationships between supervisors' leadership behaviours (transformational as well as active‐corrective transactional leadership) and subordinates' innovative behaviour and task performance. Based on behavioural plasticity and self‐monitoring theory, we hypothesized that these associations would be moderated by subordinates' organization‐based self‐esteem and by their propensity to modify self‐presentation, a major facet of the self‐monitoring construct. Field survey data (N=161) collected in research and development, marketing and human resources departments of several German companies revealed that transformational leadership positively predicted both criteria, whereas active‐corrective transactional leadership negatively predicted innovation. As hypothesized, transformational leadership related more strongly and positively to innovation for subordinates low in organization‐based self‐esteem. When subordinates were low in self‐presentation propensity, active‐corrective transactional leadership was negatively, and transformational leadership was positively associated with task performance.     

Trying harder may disrupt cue utilisation

Abstract

Cue depreciation refers to an inhibitory effect in fragment cueing induced by revealing a fragment gradually rather than all at once. Thus far, the effect has been observed only with test words that have been primed in some way. In Experiments 1 and 2 of the present study, even with equal priming for all words, inhibition arises with low-frequency words defined as “challenging” but not with high-frequency words defined as “easy”, and with “remember” instructions (explicit memory task) but not with “complete with any word” instructions (implicit memory task). In Experiments 3 and 4, inhibition arises with unprimed words when subjects believe discovery of such words to be correlated with intelligence or to afford more points. Cue depreciation thus appears to be influenced, rather than by priming per se, by the importance attached to the completion of fragments and “trying harder”.     

Further Observations on Group Judgments of Lifted Weights

With use of a sample of five kibbutzim and subjects from three cities in Israel, the hypothesis investigated was that the adults in the kibbutz would obtain higher scores than the other subjects in their perceptions of the past and present on the Self-Anchoring Striving Scale. These responses were compared to those of two groups from the United States, Jewish and non-Jewish. The total sample consisted of 160 Ss with 40 Ss in each of the four groups. It was also hypothesized that there would be less discrepancy in the perceptions of the future as compared to the past and present between Israeli and United States Ss. The hypotheses presented were supported by the data.

The kibbutz sample in expressing hopes and aspirations had a significantly higher number of Ss that desired world peace than the other three samples. The Israeli city sample in responding to aspirations had a significantly greater number of responses than the kibbutz for the following categories: having a good job, owning a house, and possessing wealth.

The Israeli city sample compared to the kibbutz had a significantly higher number of responses to a fear of a deterioration in the standard of living. The rank order correlation of the verbal responses indicated that the responses of the American Jewish group were more similar to both Israeli groups than the United States non-Jewish group.     

Response Inhibition and the Rorschach ‘M’ Response

Previous research indicated that a relationship existed between production of the Rorschach M response and inhibition of motor activity. The present study investigated this relationship under conditions which approximated those involved in the normal process of impulse control. Volunteer college students were used as subjects. Ss who engaged in a response inhibition task subsequently produced significantly more M responses than did Ss who had engaged in a noninhibitory task. This supported the hypothesis that M is an indication of the tendency to deal with impulses through fantasy.     

Event-Based Prospective Memory in Children with Sickle Cell Disease: Effect of Cue Distinctiveness

Event-based prospective memory (EB-PM) is the formation of an intention and remembering to perform it in response to a specific event. Currently, EB-PM performance in children with sickle cell disease (SCD) is unknown. In this study, we designed a computer-based task of EB-PM; No-Stroke, Silent-Infarct, and Overt-Stroke groups performed significantly below the demographically similar control group without SCD. Cue distinctiveness was varied to determine if EB-PM could be improved. All groups, with the exception of the Overt-Stroke group, performed significantly better with a perceptually distinctive cue. Overall, these results suggest that EB-PM can be improved significantly in many children with SCD.     

Schizotypy and hemisphere function—IV : Story comprehension under binaural and monaural listening conditions

An experiment is reported examining the story-comprehension performance of normal Ss under left ear, right ear and binaural listening conditions, the results being related to scores on the schizotypy (STA) scale of a previously described questionnaire (STQ). Hypotheses were derived from the observations of other investigators that schizophrenics and the children of schizophrenics show impaired binaural relative to monaural and poor left ear performance on the task; a pilot study had indicated that this might also be the case in normal high STA scorers. Results of the main experiment failed to confirm predictions, though in male Ss several significant effects were observed. High schizotypals showed weakened asymmetry, reflected in better left ear relative to right ear performance, compared with low schizotypals; they also showed a smaller binaural/left ear difference. Some reasons for the discrepancy between these and previous findings using a similar task are considered and the results are discussed in relation to other studies of schizotypy and hemisphere function carried out in our laboratory.     

Application of Cognitive Load Theory to Develop a Measure of Team Cognitive Efficiency

Improving human systems integration through technologically advanced training and performance aids has become increasingly important to military transformation. Measures of improved cognitive and coordination processes arising from the employment of transformational tools are necessary to guide the refinement and future development of such technologies. In this article, we describe a cognitive load theory approach to developing a combinatory measure of individual workload and team performance following an experimental intervention involving training and a decision support system. We discuss how indicators of what we term team cognitive efficiency can improve assessing the effectiveness of transformational processes and technologies.     

A Measuring Device for the Galvanic Reflex

Twenty words were scaled according to their reinforcing value. Ss rated the words according to whether they would like or dislike to have a respected person say the word after S performed a task. A frequency table was compiled which indicated the number of times each word was chosen. Items in the frequency table with a high numerical value were denoted as liked and positive; items with a low numerical value were denoted as disliked and negative. One each of the positive, negative, and neutral reinforcers was used in a verbal conditioning experiment. After “I-We” sentences, Ss—depending upon the group to which they were assigned—were given orally one of the three reinforcing words by the E. The positive reinforcer produced a rapid progressive increase in the rate of responding; the negative reinforcer, a successive decreasing rate of responding; the neutral reinforcer produced at first an increasing rate of responding, then a decreasing reinforcing characteristic. Comparison of the initial set of I-We sentences revealed that conditioning did occur in the direction the numerical values indicated.     

Anxiety and cognitive-task performance

The performance of individuals high and low in trait anxiety was compared on a cognitive task involving letter transformation. This task was performed in the presence or absence of monetary incentive for superior performance. Adverse effects of anxiety on performance were apparent only on the more complex versions of the letter-transformation task. Analysis of the microstructure of the task indicated that anxiety impaired the rehearsal and storage of task-relevant information. Motivation in the form of monetary incentive improved the performance of low-trait-anxiety Ss, but had no effect on high-trait-anxiety Ss. The findings were discussed with reference to the working memory system and the theory proposed by Eysenck (1979).