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481.
Lacroix GL Constantinescu I Cousineau D de Almeida RG Segalowitz N Grünau Mv 《Brain and cognition》2005,57(2):115-119
The goal of this study was to evaluate the possibility that dyslexic individuals require more working memory resources than normal readers to shift attention from stimulus to stimulus. To test this hypothesis, normal and dyslexic adolescents participated in a Rapid Serial Visual Presentation experiment (Raymond, Shapiro, & Arnell, 1992). Surprisingly, the result showed that the participants with dyslexia produced a shallower attentional blink than normal controls. This result may be interpreted as showing differences in the way the two groups encode information in episodic memory. They also fit in a cascade-effect perspective of developmental dyslexia. 相似文献
482.
Mancinelli I Comparelli A Girardi P Tatarelli R 《Suicide & life-threatening behavior》2002,32(1):91-100
Mass suicide can be defined as the simultaneous suicide of all the members of a social group and is closely linked to the human dimension of existence, although the social and cultural context may vary. In fact, the term mass suicide can also be used to describe situations in which a particular population has reacted to oppression by denying all normal activities of sustenance, with the intention of bringing about a traumatic metamorphosis in a cultural context (colonization, exploitation by other populations), thus transforming a catastrophe in which a passive role is played into one constructed actively. Therefore, mass suicides can be subdivided into two categories: (a) hetero-induced, typical of defeated and colonized populations forced to escape from a reality that does not acknowledge their human dignity and (b) self-induced, in which the motivation is related to a distorted evaluation of reality, without there being either an intolerable situation or a real risk of death. The mass suicides that have taken place in the last 20 years are all related to the establishment of religious sects; the mystic delirium created within the sect leads to the self-destruction of the group as being interpreted as an act of self-assertiveness. 相似文献
483.
Solana-Figueroa R Salado-Castillo R Galindo LE Quirarte GL Prado-Alcalá RA 《Neurobiology of learning and memory》2002,78(1):178-185
Pretraining systemic administration of p-chloroamphetamine (PCA) consistently produces retention deficits of inhibitory avoidance. This drug causes a widespread acute release of serotonin from cerebral neuronal terminals, but it is not known where in the brain PCA exerts its disruptive cognitive effects. The present experiment was aimed at determining whether the striatum is a site of action of this drug. PCA (5 microg) was infused, bilaterally, into the striatum of rats at 30, 15, or 5 min before training of inhibitory avoidance, and retention of the task was measured 24 h later. An inversely related time-dependent deficit was found. Together with the results from appropriate control groups, this result strongly suggest that systemic PCA produces its reported cognitive effects, at least in part, through its pharmacological action within the striatum. 相似文献
484.
In visual search tasks snake or spider fearful participants showed shorter reaction times (RTs) to respond to their feared animal (e.g., snake) than to the nonfeared animal (i.e., spider) (Öhman, Flykt, & Esteves, 2001). Here, we used this paradigm with heart rate (HR), RTs, and event-related potential (ERP) measures, to investigate the nature of the responses to the feared animal, a nonfeared (but fear-relevant) animal, and fear-irrelevant target stimuli with snake fearful, spider fearful, and nonfearful participants. Fearful participants showed shorter RTs and evoked larger amplitudes on a late positive potential (LPP; 500–700 ms) for their feared compared to the nonfeared and the fear-irrelevant targets. No relevant significant differences were found on early ERP components and HR measures. These findings do not support an involvement of early information processing in the detection of the feared animal in fearful participants, they favour instead a more elaborated analysis of these complex stimuli to achieve the detection. 相似文献
485.
Fiorenzo Laghi Roberto Baiocco Anna Di Norcia Eleonora Cannoni Emma Baumgartner Anna Silvia Bombi 《Cognition & emotion》2013,27(7):1338-1346
This study examined the relationship between emotional understanding, friendship representation and reciprocity in school-aged children. Two hundred and fifty-one Caucasian 6-year-old children (111 males and 140 females) took part in the study. The Test of Emotion Comprehension (TEC) and the Pictorial Assessment of Interpersonal Relationships (PAIR) were used. Children having a reciprocal friendship and children having a unilateral friendship with a child named as their “best friend” were compared on the emotional understanding task and on their pictorial representations of friendship. Multilevel analyses indicated that friendship status effects were not influenced by classroom-level differences. Results showed that children with reciprocal friendships drew themselves as more similar to and more cohesive with their best friends, and they showed better understanding of emotions, than children having a unilateral friendship. Finally, the implications of these findings for theoretical and empirical research development on friendship are discussed. 相似文献
486.
Levels of awareness, a personal construct concept that explains varying levels of "consciousness" while respecting the felt experience of the client, has not been systematically explored within the personal construct literature. Six processes associated with varying levels of awareness are discussed in this article: (1) ways the client's meaning system may preclude possibilities experienced by the therapist, (2) implications of the system that have not been elaborated, (3) terror associated with exploring the contrast poles to meanings, (4) framing assumptions that limit our awareness of issues, (5) suspended events and the shutting down of meaning-making, and (6) nonverbal construing. These processes have implications for how the clinician will connect with and engage the creativity of the client. 相似文献
487.
Roberto Lorenzini Sandra Sassaroli Maria Teresa Rocchi 《Journal of constructivist psychology》2013,26(4):417-432
Abstract Paranoia and schizophrenia represent two opposite ways of reacting to invalidation. In paranoia the system tends to become more and more monolithic. Whenever the paranoid individual's observations contradict his or her personal theory, the theory prevails, so that the system evolves toward an “exaggerated dogmatism.” In the schizophrenic syndrome, on the other hand, we find renunciation of a unitary organization of knowledge. In this form of an “exaggerated empiricism,” the system moves toward fragmentation, and predictions become variable and contradictory. The path that is followed depends on the premorbid structure of the individual's system and the particular kind of invalidation experienced. 相似文献
488.
489.
Rubén D. Ledesma Roberto Sánchez Carlos M. Díaz-Lázaro 《Journal of personality assessment》2013,95(1):46-55
The aim of this work was to develop an adjective checklist to assess the Big Five personality factors in the Argentine population. The new instrument was administered to pilot (n= 112), validation (n= 372), and replication (n= 309) samples. The final version of the checklist included 67 adjectives encompassing its 5 dimensions. Factor analysis results were consistent with the Five-factor model. Internal consistency of scales was very good and convergent correlations with the Big Five Inventory (BFI; John, Donahue, & Kentle, 1991) were substantial. Face validity, as evaluated by 2 independent raters, was good. Preliminary evidence of validity for the checklist is presented. Finally, the Adjective Checklist for Personality Assessment and BFI are compared, taking into consideration their psychometric properties in our cultural context. Study limitations and future research are discussed. 相似文献
490.
Carlos Eduardo Costa André Connor de Méo Luiz Lucas Franco Carmona Guilherme Dutra Ponce Roberto Alves Banaco Kennon A. Lattal 《Journal of the experimental analysis of behavior》2024,121(2):163-174
Behavioral momentum theory (BMT) provides a theoretical and methodological framework for understanding how differentially maintained operant responding resists disruption. A common way to test operant resistance involves contingencies with suppressive effects, such as extinction or prefeeding. Other contingencies with known suppressive effects, such as response-cost procedures arranged as point-loss or increases in response force, remain untested as disruptive events within the BMT framework. In the present set of three experiments, responding of humans was maintained by point accumulation programmed according to a multiple variable-interval (VI) VI schedule with different reinforcement rates in either of two components. Subsequently, subtracting a point following each response (Experiment 1) or increasing the force required for the response to be registered (Experiments 2 and 3 decreased response rates, but responding was less disrupted in the component associated with the higher reinforcement rate. The point-loss contingency and increased response force similarly affected response rates by suppressing responding and human persistence, replicating previous findings with humans and nonhuman animals when other types of disruptive events (e.g., extinction and prefeeding) were investigated. The present findings moreover extend the generality of the effects of reinforcement rate on persistence, and thus BMT, extending the analysis of resistance to two well-known manipulations used to reduce responding in the experimental analysis of behavior. 相似文献