Integration and representation in rats' serial pattern learning in the T-maze

Rats were exposed to three-trial series consisting of reinforced (R) trials and one nonreinforced (N) trial in a fixed order, RRN and RNR (Experiments 1 and 2) or NRR and RRN (Experiment 3), on extended visually distinct runways in a T-maze. When initially presented with the same sequence on each series in a session (separate presentations) with the same runway on all trials within a series (Experiments 1 and 3), all the rats developed slower running speeds on N than on R trials. When a runway was sometimes changed between the first and next two trials during separate presentations training (Experiment 2) or both sequences were later intermixed within each session in each experiment, only rats exposed to each sequence on a specific runway maintained these serial running patterns. Rats displayed serial running patterns on a test RNN sequence similar to that on the RNR sequence (Experiment 2), as would be predicted by an intertrial association model of serial pattern learning (Capaldi & Molina, 1979), but responded on test RRR and NRN sequences (Experiment 3) as would be predicted by an ordinal-trial-tag/intratrial association model (Burns, Wiley, & Payne, 1986). Results from test series of free-choice trials in Experiments 1 and 2 failed to support a prediction of the intratrial association model that these rats would integrate RRN and RNR sequences. Rather than always selecting a baited runway on both the second and the third free-choice trials, the rats only selected a baited runway on the third trial on the basis of their choice on the second trial, as would be predicted by the intertrial association model. Only after experiencing all possible outcome sequences during forced-choice training in Experiment 3 did these rats predominantly select a baited runway on every free-choice trial.     

Risques de la régulation médicale en médecine d’urgence. Analyse des dossiers de plaintes de la permanence des soins ambulatoire au SAMU du Var

Introduction

The non-urgent care requests depending on the continuity of care system have to be regulated by a regulating doctor of a medical emergency service call center. We aim to determine the risk factor of litigations about the regulation of the continuity of care system. So, the cases with friendly complaint and those with litigation have been compared.

‘Faking brands’: Consumer responses to counterfeiting

Whilst counterfeiting is regarded as one of the ‘oldest crimes in history’, contextualised treatments of Middle East and North Africa (MENA region) are rare despite growing interconnections with the global economy. Accordingly, this paper explores consumer motivations to purchase counterfeit products and identifies possible counter‐influences. Data from a survey of 400 respondents drawn from Morocco was tested with logistic regression models to determine the significant factors that trigger responsiveness and deterrence to counterfeit products. The tests were based on three product categories: clothing, cosmetics and mobile phones. Additionally, consumer demographics and selected social triggers were evaluated to build a profile of consumers typically likely to consider buying (or avoiding) counterfeit goods. Results show that concerns related to health, disappointment risk and integrity are the most significant countervailing factors on behavioural intentions towards purchasing counterfeits. On a socio‐demographic level, it was found that low‐income consumers are more positively disposed to buying counterfeits. Gender also seems to have an explanatory force. Women with higher educational backgrounds are less likely than men to consider buying counterfeit goods. For all the products evaluated, quality and price consistently proved the most important factors driving the intention to buy counterfeits. The implications are highlighted; combating counterfeiting is not an exclusive preserve of any single entity (governments, business or para‐governmental agencies) but a shared responsibility. There is a lot at stake for consumers, manufacturers and the industrial nations if the menace is not effectively checked. Copyright © 2012 John Wiley & Sons, Ltd.     

The structure of sensory events and the accuracy of time judgments

We investigated how does the structure of empty time intervals influence temporal processing. In experiment 1, the intervals to be discriminated were the silent durations marked by two sensory signals, both lasting 10 or 500 ms; these signals were two identical flashes (intramodal: VV), or one visual flash (V) followed by an auditory tone (A) (intermodal: VA). For the range of duration under investigation (standards = 0.2, 0.6, 1, or 1.4 s), the results indicated that both the marker length and sensory mode influenced discrimination, but no interaction between these variables or between one of these variables and standard duration was significant. In experiment 2, we compared, for each of four marker-type conditions (VV, AA, VA, AV; and standard = 1 s), intervals marked by two 10 ms signals with intervals marked by unequal signal length (markers 1 and 2 lasting 10 and 500 ms, or 500 and 10 ms). As in experiment 1, the results revealed significant marker-mode and marker-length effects, but no significant interaction between these variables. Experiment 3 showed that, for the same conditions as in experiment 2, perceived duration is not influenced by marker length and that the variability of interval reproductions does not depend on the perceived duration of intervals. The results are discussed in the light of a single-clock hypothesis: marker-length and marker-mode effects are presented as being non-temporal sources of variability associated mainly with sensory and memory processes.     

College-level instruction: derived relations and programmed instruction

Recent research has demonstrated the effectiveness of programmed instruction that integrates derived relations to teach college-level academic material. This method has been demonstrated to be effective and economical in the teaching of complex mathematics and biology concepts. Although this approach may have potential applications with other domains of college learning, more studies are needed to evaluate important technological variables. Studies that employ programmed instruction are discussed in relation to future directions for research.     

Predictive Validity of Adult Attachment Measures in Relation to Emotion Regulation Behaviors in Marital Interactions

This study examined the predictive validity of 2 assessment approaches to adult attachment in relation to emotion regulation behaviors during marital conflict interactions. Both partners of 40 couples completed the Adult Attachment Style self-report (AAS; C. Hazan & P. Shaver, 1987), the Adult Attachment Questionnaire (AAQ; J. A. Simpson, 1990), the Adult Attachment Interview (AAI; C. George, N. Kaplan, & M. Main, 1985), and a videotaped interaction during which the partners engaged in a problem-solving discussion. The discussions were coded by means of the Interactional Dimensions Coding System (IDCS; D. Julien, H. J. Markman, & K. M. Lindhal, 1989). Results showed that AAI classification predicted proactive emotion regulation behaviors, whereas the AAS and the AAQ did not. Issues concerning the predictive validity of current measures of adult attachment are discussed.     

La relation entre les conflits conjugaux,la satisfaction conjugale des mères et la qualité de la communication mère‐adolescente

A sample comprising 41 couples and their adolescent daughters participated in a study on the association between marital conflicts and mother‐daughter communication. Observational measurements and questionnaires were used to evaluate the level of the quality of communication between the couple, the marital satisfaction of the parents and the quality of the communication between mother and adolescent daughters. The results show that: (a) conflicts observed between the parents are positively associated with the level of confrontation observed between the mother and the daughter and (b) the marital satisfaction of the mothers plays a mediatory role between the conflicts in the couple and the level of mother‐daughter confrontation. The marital satisfaction of the mothers would be the link in the process of propagation of the affects and the negative behaviour of the couple and the mother‐adolescent daughter relationship.     

The lifespan of time intervals in reference memory

To further explore how memory influences time judgments, we conducted two experiments on the lifespan of temporal representations in memory. Penney et al (2000, Journal of Experimental Psychology Human Perception and Performance 26 1770-1787) reported that the perceived duration of auditorily and visually marked intervals differs only when both marker-type intervals are compared directly. This finding can be explained by a 'memory-mixing' process, whereby the memory trace of previous intervals influences the perception of upcoming ones, which are then added to the memory content. In the experiments discussed here, we manipulated the mixing mode of auditory/visual signal presentations. In experiment 1, signals from the same modality were either grouped by blocks or randomised within blocks. The results showed that the auditory/visual difference decreased but remained present when modalities were grouped by blocks. In experiment 2, we used a line-segmentation task. The results showed that, after a training block was performed in one modality, the perceived duration of signals from the other modality was distorted for at least 30 trials and that the magnitude of the difference decreased as the block went on. The results of both experiments highlight the influence of memory on time judgments, providing empirical support to, and quantitative portrayal of, the memory-mixing process.