The role of optimism and pessimism in chronic pain patients adjustment

This study analyses the relationships between patients' dispositional optimism and pessimism and the coping strategies they use. In addition, the coping strategies repercussions on adjustment to chronic pain were studied. Ninety-eight patients with heterogeneous chronic pain participated. The assessment tools were as follows: Life Orientation Test (LOT), the Vanderbilt Pain Management Inventory (VPMI), the McGill Pain Questionnaire (MPQ), Hospital Anxiety and Depression Scale (HADS), and the Impairment and Functioning Inventory for Chronic Pain Patients (IFI). The hypothetical model establishes positive relationships between optimism and the use of active coping strategies, whereas pessimism is related to the use of passive coping. Active coping is associated with low levels of pain, anxiety, depression and impairment and high levels of functioning. However, passive coping is related to high levels of pain, anxiety, depression and impairment and low levels of functioning. The hypothetical model was empirically tested using the LISREL 8.20 software package and the unweighted least squares method. The results support the hypotheses formulated regarding the relations among optimism, pessimism, coping and adjust of chronic pain patients. By analysing optimism among chronic pain patients, clinicians could make better predictions regarding coping and adjustment.     

Long-term meditation: the relationship between cognitive processes,thinking styles and mindfulness

The aim of this study is to examine the relationship between meditation and cognitive functions. More in depth the purpose is to demonstrate that long-term meditation practice improves attention skills and cognitive flexibility. Eighteen long-term meditation practitioners were compared to a matched control group, who never practiced meditation. Each subject was tested, using computerized software (Presentation Software 9.90), which measured: attention, visual search abilities, working memory and Stroop’s interference tasks. Furthermore, we examined the relationship between long-term meditation practice, mindfulness skills and thinking styles, namely styles of processing information. The results showed significant differences between the two groups, demonstrating that long-term meditation is linked to improvements of attentional functions, working memory and cognitive flexibility.     

Determinantes familiares,escolares y grupales del consumo de drogas en la adolescencia. Implicaciones para el Tratamiento

Resumen

El propósito del presente artículo es el de llamar la atención acerca de la necesidad de recoger los datos que señalan la importancia de los grupos familiar, escolar y de iguales, de cara a la elaboration de programas concretos de prevención y tratamiento de incidencia en estos tres entornos del adolescente. Con este fin, en primer lugar se analizarán los principales hallazgos de las investigaciones que relacionan la familia, la escuela y el grupo de iguales con la aparición de drogodependencias en los adolescentes. Como segundo paso se apuntarán las líneas generales de aplicación de estos hallazgos en programas de prevención e intervención.     

On the Representation of Inflections and Derivations: Data from Spanish

The four experiments reported in this paper were designed to determine to what extent words are lexically represented in terms of their morphological structure. The experiments are carried out in Spanish, a language with rich morphological resources, using a priming paradigm and a lexical decision task. In particular, they examined the pattern of priming effects in regular inflected words with gender and in derived words, in comparison to those produced by orthographically and semantically related words, by manipulating form similarity and semantic transparency. The results showed, on the one hand, that regular inflected words produced reliable facilitatory effects which are not driven just by form relatedness (Experiments 1 and 2). On the other hand, they showed that both transparent and nontransparent derived forms produced facilitatory effects distinct from purely orthographic and semantic effects (Experiments 3 and 4.). In general, these findings suggest that morphological information is represented in the mental lexicon and may play a central role in the individuation and retrieval of lexical entries.     

A fMRI study of word retrieval in aphasia

The neural mechanisms underlying recovery of cognitive functions are incompletely understood. Aim of this study was to assess, using functional magnetic resonance (fMRI), the pattern of brain activity during covert word retrieval to letter and semantic cues in five aphasic patients after stroke, in order to assess the modifications of brain function which may be related to recovery. Four out of five patients had undergone language recovery, according to standard testing, after at least 6 months of rehabilitation. The cerebral activation of each patient was evaluated and compared with the activation pattern of normal controls studied with the same fMRI paradigm. In the patients, the pattern of brain activation was influenced by the site and extent of the lesion, by the degree of recovery of language, as reflected by task performance outside the scanner, and by task requirements. In the case of word retrieval to letter cues, a good performance was directly related to the activation in Broca's area, or in the right-sided homologue. On the other hand, in the case of semantic fluency, the relationship between performance level and activation was less clear-cut, because of extensive recruitment of frontal areas in patients with defective performance. These findings suggest that the performance in letter fluency is dependent on the integrity of the left inferior frontal cortex, with the participation of the homologous right hemispheric region when the left inferior frontal cortex is entirely of partially damaged. Semantic fluency, which engages the distributed network of semantic memory, is also associated with more extensive patterns of cerebral activation, which however appear to reflect retrieval effort rather than retrieval success.     

SARA: a cognitive process model to simulate the anchoring effect and hindsight bias

The cognitive process model "SARA" aims to explain the anchoring effect and hindsight bias by making detailed assumptions about the representation and alteration of item-specific knowledge. The model assumes that all processes, namely generating an estimate, encoding new information (i.e., the "anchor"), and reconstructing a previously generated estimate, are based on a probabilistic sampling process. Sampling probes long-term memory in order to retrieve information into working memory. Retrieval depends on the associative strength between this information and the currently active retrieval cues. Encoding the anchor may alter this associative pattern ("selective activation") or the anchor may serve as a retrieval cue, thus directing memory search ("biased reconstruction"). Both processes lead to systematically changed retrieval probabilities, thus causing the anchoring effect or hindsight bias. The model is completely formalised and implemented as a computer program. A series of simulations demonstrates the power of SARA to reproduce empirical findings and to predict new ones.     

Predictors of Emotional Security in Survivors of Interpersonal Violence

As emotional security theory has recently been extended to understand recovery from interpersonal violence, the present study aimed to understand whether and to what extent trauma-specific aspects of the family environment (caregiver responses to disclosure, non-disclosure) and more general aspects of the family environment (interparental conflict, parental invalidation of emotions) explained variance in emotional security in the family in a sample of emerging adults with a history of interpersonal violence (physical or sexual abuse or assault). Results indicated that substantiated aspects of the interparental subsystem (interparental conflict) and parent–child subsystem (parental invalidation of emotions) predicted all three aspects of emotional security (preoccupation, disengagement, and security) in regression models where trauma-specific variables were included. Additionally, non-supportive caregiver response to disclosed trauma also accounted for significant variance in felt security, supporting the idea that problematic caregiver responses to traumatic events can erode emotional security for survivors of interpersonal violence, in addition to broader patterns in the interparental and parent–child subsystems.     

A measure of pronunciability of CVC trigrams

All 2100 CVC trigrams were scaled for pronunciability by measuring pronunciation latency (PLat). The resulting distribution of PLat scores was extremely leptokurtic and positively skewed. Scores ranged from a minimum of .531 sec to a maximum of 1.726 sec. Average PLat was .81 sec. The relationship of PLat to Archer meaningfulness was linear; however, the degree of relationship was slight (r=?.37). This finding is interpreted as indicating that PLat is relatively free of bias from such other stimulus attributes as meaningfulness. As such, P Lat is viewed as reflecting a basic processing time for such stimulus materials.     

La représentation sociale des droits de l'homme: Une recherche internationale sur l'étendue et les limites de l'universalité

La perception des violations des droits de l'homme par de jeunes individus insérés dans des contextes nationaux différents est-elle organisée selon des principes comparables à ceux d'experts ou d'institutions internationales? La présente étude contribue à élucider cette question en la situant dans le champ de la psychologie sociale. La représentation sociale des droits humains a été analysée par le biais d'un questionnaire standardisé soumis à des sujets de quatre pays (Costa Rica, France, Italie et Suisse) âgés de 13 à 20 ans. Les résultats montrent que les individus partagent dans une large mesure une conception institutionnelle des droits humains. De fortes variations à l'intérieur et entre les contextes nationaux apparaissent néanmoins, en particulier dans la délimitation des libertés individuelles et du contrôle étatique.