SITUATION-SPECIFIC ASSERTIVENESS IN THE EPIDEMIOLOGY OF SEXUAL VICTIMIZATION AMONG UNIVERSITY WOMEN

Protective and risk factors for sexual victimization were examined in a sample of 274 undergraduate women. Assertiveness specific to situations with the opposite gender was protective at all three assessment times. Prior victimization, alcohol use, poor adjustment (as indicated by depression and anxiety), multiple sexual partners, and insecurity about relationships with the opposite gender were significant risk factors. Prevention efforts might be more effective if (a) behavioral practice of assertiveness was added to informational and attitudinal interventions; (b) assertiveness training focused specifically on relationships with the opposite gender; (c) medical and counseling services routinely assessed for prior victimization and other risk factors, and made appropriate referrals for women with victimization histories; and (d) alcohol education-programs were integrated with acquaintance-rape programs.     

Antiaggressive Effects of Zolpidem and Zopiclone in Agonistic Encounters Between Male Mice

The effects of benzodiazepines on various types of aggression have been extensively studied. These substances produce their pharmacological effects by allosterically modulating the action of GABA via specific recognition sites on the GABA_A receptor called omega 1 and omega 2. The antiaggressive profile of non‐benzodiazepine compounds that also act at omega sites, such as zopiclone (a non‐selective omega 1 and 2 ligand) and zolpidem (a selective omega 1 ligand) has been scarcely explored. In this study, we examined the action of zolpidem (0.75‐3 mg/kg, intraperitoneally) and zopiclone (1.5‐6 mg/kg), administered acutely or subchronically for 10 days, on agonistic behavior elicited by isolation in male mice. Individually housed mice were exposed to anosmic “standard opponents” 30 min after drug administration, and the encounters were videotaped and evaluated using an ethologically based analysis. Acute treatment with zopiclone produced a marked antiaggressive effect, reducing offensive behaviors (threat and attack) at all doses used (1.5, 3, and 6 mg/kg) without affecting immobility. Likewise, the intermediate dose of zolpidem (1.5 mg/kg) significantly decreased aggression in a specific manner, without altering immobility, whereas the highest dose (3 mg/kg) provoked a reduction of aggression accompanied by a weak (but significant) increase of immobility. With repeated treatment, no tolerance to the antiaggressive effects of zopiclone and zolpidem was developed. It is concluded that omega sites at the GABA_A receptor could be involved in the control of aggression. Aggr. Behav. 28:416–425, 2002. © 2002 Wiley‐Liss, Inc.     

Stereotypes and beliefs about different ethnic groups in Spain. A study with Spanish and Latin American children living in Madrid

96 Spanish and Latin American children from 3 grades in Madrid reported their knowledge of positive and negative stereotypes regarding Spaniards, Gypsies, Latin American and Chinese people. Their personal beliefs about these four ethnic groups were also assessed. Stereotypes about Spaniards were perceived as overwhelmingly positive and least negatively while stereotypes about Gypsies were rarely positive and often negative. Spanish children attributed more positive and fewer negative stereotypes to Chinese immigrants than Latin American children did. Older children reported more positive stereotypes about Gypsies than younger children and older Spanish children reported fewer positive stereotypes for their own group than their younger counterparts. Older children's personal beliefs about Gypsies were less consistent with negative stereotypes than younger children's. Older children also showed greater discrepancy of their personal beliefs with positive stereotypes of Spaniards than younger children did. Findings are discussed within the context of socio-cognitive approaches.     

Anticipating seizure: pre-reflective experience at the center of neuro-phenomenology

The purpose of this paper is to show through the concrete example of epileptic seizure anticipation how neuro-dynamic analysis (using new mathematical tools to detect the dynamic structure of the neuro-electric activity of the brain) and "pheno-dynamic" analysis (using new interview techniques to detect the pre-reflective dynamic micro-structure of the corresponding subjective experience) may guide and determine each other. We will show that this dynamic approach to epileptic seizure makes it possible to consolidate the foundations of a cognitive non pharmacological therapy of epilepsy. We will also show through this example how the neuro-phenomenological co-determination could shed new light on the difficult problem of the "gap" which separates subjective experience from neurophysiological activity.     

Preliminary validation of a Spanish version of the Sport Motivation Scale

The Sport Motivation Scale was developed in French and later translated into English and validated by Pelletier, et al. in 1995. It is based on the principles of self-determination theory. In this study the scale was translated into Spanish to assess and validate it for a sample of 275 athletes (78 women and 197 men) whose mean age was 21.3 yr. (SD=3.8) and who represented eight sports (track and field, tennis, swimming, waterpolo, soccer, basketball, handball, and volleyball). The Spanish version showed satisfactory internal consistency (Cronbach alpha of .70 to .80) and temporal stability (test-retest r = .69 to .74) over a 4-wk. period. A confirmatory factor analysis partially supported the seven-factor structure. Correlations among the subscales indicated a simplex pattern supporting the construct validity of the scale. Sex differences were found. Taken together, these findings support use of the Spanish version for assessment of motivation in sport.     

Global model analysis by parameter space partitioning

To model behavior, scientists need to know how models behave. This means learning what other behaviors a model can produce besides the one generated by participants in an experiment. This is a difficult problem because of the complexity of psychological models (e.g., their many parameters) and because the behavioral precision of models (e.g., interval-scale performance) often mismatches their testable precision in experiments, where qualitative, ordinal predictions are the norm. Parameter space partitioning is a solution that evaluates model performance at a qualitative level. There exists a partition on the model's parameter space that divides it into regions that correspond to each data pattern. Three application examples demonstrate its potential and versatility for studying the global behavior of psychological models.     

The development of the conception of socioeconomic mobility in children from Mexico and Spain

The authors studied the developmental stages of children's understanding of upward socioeconomic mobility. They interviewed one hundred 6- to 14-year-old participants from Mexico and Spain and asked them about sources of wealth and factors related to socioeconomic mobility. Categorical analyses of the responses showed few age-related changes but noted some cross-national differences. A different analysis designed to identify levels of understanding showed a significant association between age and type of explanation of socioeconomic mobility. Overall, cross-national comparisons yielded similarities in children's developmental trends, and only slight differences were found with regard to cultural background. The present results contrast with those of studies conducted from the perspective of the social representation theory.     

The sunk cost effect in pigeons and humans

The sunk cost effect is the increased tendency to persist in an endeavor once an investment of money, effort, or time has been made. To date, humans are the only animal in which this effect has been observed unambiguously. We developed a behavior-analytic model of the sunk cost effect to explore the potential for this behavior in pigeons as well as in humans. Each trial started out with a short expected ratio, but on some trials assumed a longer expected ratio part way through the trial. Subjects had the (usually preferable) option of "escaping" the trial if the longer expected ratio had come into effect in order to bring on a new trial that again had a short expected ratio. In Experiments 1 through 3, we manipulated two independent variables that we hypothesized would affect the pigeons' ability to discriminate the increase in the expected ratio within a trial: (a) the presence or absence of stimuli that signal an increase in the expected ratio, and (b) the severity of the increase in the expected ratio. We found that the pigeons were most likely to persist nonoptimally through the longer expected ratios when stimulus changes were absent and when the increase in the expected ratio was less severe. Experiment 4 employed a similar procedure with human subjects that manipulated only the severity of the increase in the expected ratio and found a result similar to that of the pigeon experiment. In Experiment 5, we tested the hypothesis that a particular history of reinforcement would induce pigeons to persist through the longer expected ratios; the results suggested instead that the history of reinforcement caused the pigeons to persist less compared to pigeons that did not have that history.