Re-inventing the already punctured wheel: reflections on a seminar with Humberto Maturana

Three central themes of Maturana's work - autopoiesis, the biology of cognition, and cybernetic ontology – are examined. Evidence is offered that Maturana's treatment of these themes is either unoriginal or flawed. The uncritical acceptance of Maturana's work by family therapists raises questions about the maturity of their discipline, especially in so far as many practitioners claim an understanding of cybernetics.     

The Social Adjustment of Newcomers in Secondary School

Each year, a large number of children change residence and school. This paper examines the social experience of being a newcomer at secondary school, with special reference to the process of adjustment. It is based on a detailed longitudinal case study of 45 newcomers. Each was followed for 12 months, with the main source of data being seven in-depth interviews with each student, backed up by unscheduled interviews, school reports, teacher and peer-group comments and observations. Because the data show extensive similarity in newcomers' experiences-all must deal with a different curriculum, new teachers and the social world of other students-it is possible to construct a general three-stage map of the process of adjustment. This map has important implications for the guidance and counselling of such students.     

Cognitive differentiation in women and pioneer-traditional vocational choices

In order to test the hypothesis that women who went into male dominated fields (pioneers) were more cognitively complex in social relationships than women who went into female dominated fields (traditionals), 83 college seniors were classified and tested using a grid for cognitive complexity in their roles. As predicted, the pioneers were more differentiated (p < .05) in their perception of various social roles and supported the research in cognitive complexity in vocational behavior.     

Punishment persistence and sequence: Some effects of P-length and N-length in the rat

In a runway investigation, two groups of rats received partial punishment training with P-lengths of 1, 2, and 3 (Group P123) and P-lengths of 1 (Group P1), respectively. Two additional groups received partial reinforcement with N-lengths of 1, 2, and 3 (Group N123) and N-length of 1 (Group N1). An additional group was given unpunished continuous reinforcement in the runway, but received control shocks in a separate apparatus. Following training all subjects received punished extinction (shock plus nonreward). The results indicated that P-length increased resistance to punished extinction, however N-length did not have the corresponding effect. In addition, partial reinforcement did not increase resistance to punished extinction relative to continuous reinforcement. These results were interpreted within a sequential-theoretical framework.     

A controlled evaluation of token economy procedures with chronic schizophrenic patients

Eighteen chronic schizophrenic patients were allocated to 3 matched groups, one group acting as an own-ward no-treatment control group. The two other groups moved to a token-economy ward, where the token group received contingent tokens, social reinforcement, and informational feedback as a consequence of appropriate behaviour, and where the control group received contingent social reinforcement and feedback with a matched amount of non-contingent tokens. After a 3 month baseline phase, this procedure was followed for a total of 15 months. A continuous assessment system was used with some weekly and monthly assessments, incorporating nursing checklists and ratings, psychiatric ratings, psychological tests, and time-sampling procedures, as well as continuous monitoring of the ward programme. The introduction of contingent tokens had an immediate positive effect in 3 areas of behaviour, but this advantage disappeared over the 15 months owing to the slower but sustained improvement in the control group. Significant improvement was limited to the areas of Social Withdrawal. Appearance and Routine. The patients who improved the most on any measure were those who were initially the most deteriorated. There were paradoxical changes in non-target behaviour, and in symptomatic behaviour. Suggestions and instructions to nurses may play a major part in influencing patient behaviour within and between experimental phases.     

Reward,affect, and young children's motivational orientation

In this study we examined the proposition that the detrimental effect of reward on young children's intrinsic motivation may be due to increased negative affect associated with performing the target task under expected reward conditions. Fifty-six children were randomly assigned to one of three non-reward mood induction conditions (positive, negative, neutral) or to a reward, neutral mood induction condition. Children then played an attractive game. Subsequent intrinsic interest was measured in a free-choice period in which rewards were neither forthcoming nor expected and children could freely choose to play with the target game or with other toys. It was found that rewards produced a less positive mood state, which subsequently was related to lowered intrinsic interest in the free-choice situation. In general, the results for the reward/neurtral mood condition paralleled those for the non-reward/negative mood condition. It was concluded that instrumental rewards may induce a temporary negative mood state in young children that can undermine intrinsic motivation.This research was sponsored in part by a Faculty-Grant-in-Aid (No. 420893) from Arizona State University, and by a Faculty Release Award from the Department of Family Resources and Human Development, both to the first author. The authors would like to express their appreciation to Barry Arbuckle, Anna Burke, Mia Nymoh, Darlene Richmond, Phil Swanson, and Irma Vega for their assistance in data collection.     

The Association of Gender,Ethnicity, and Length of Residence in the Bay Area to Adolescents' Knowledge and Attitudes about Acquired immune Deficiency Syndrome1

A large-scale survey was conducted in San Francisco to assess adolescents' knowledge, attitudes, and beliefs about AIDS. Data obtained from 1,326 adolescents demonstrate marked variability in knowledge across informational items, particularly about the precautionary measures to be taken during sexual intercourse which may reduce the risk of infection. The findings identified ethnic differences in knowledge about AIDS, with Asians having a lower overall knowledge score than Hispanics, Blacks, and Caucasians. Adolescents who score below the median for total number of correct responses were more than twice as likely to perceive themselves as very susceptible to AIDS. A comparison of surveys from other parts of the country suggests that proximity to an AIDS epicenter has great saliency for adolescents with respect to their knowledge and attitudes about AIDS. The proportion of adolescents reporting correct responses, for questions in common, between the surveys indicates that students in San Francisco score appreciably higher. A framework is also described for providing school-based risk-reduction health education for adolescents.     

Individual differences in television comprehension

Two experiments explored individual differences in memory and comprehension for adults presented information on television. Experiment 1 tested the correlation between comprehension of television and reading with young adults. The ability to comprehend these two forms of media was significantly correlated (r = .69). This finding is contrary to results from our previous study with third and sixth graders (Pezdek, Lehrer, & Simon, 1984). Experiment 2 probed two specific individual differences factors as predictors of television comprehension. The results were that good television comprehenders (1) had higher visual/spatial ability, as assessed by psychometric test performance, and (2) were more likely to utilize an imagery-based strategy in the sentence-picture verification task of Clark and Chase (1972) (e.g., “STAR IS ABOVE PLUS”). These results suggest differences in the comprehension processes that operate on information presented in different forms of media.     

Brief exposure to contingent reinforcement produces a sustained increment in the strength of an elicited response.

Squirrel monkeys' lever pressing produced by response-independent shock was measured before, and for an extended period following, exposure to a shock-avoidance procedure. Following avoidance training, the frequency of responding increased by multiples of 10 to 50 across subjects and evidence little or no decrement for up to 6 months of postreinforcement testing. Manual responding produced by intense environmental stimulation may be substantially strengthened by a brief history of reinforcement, such that it is sustained over long periods without reinforcement.