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211.
Studies show that children of alcoholics constitute a population at-risk commonly for poor performance, skipping school days, and school drop out. The focus of the present study was to examine a variety of direct outcome variables measuring academic performance among a sample of 226 children, 108 of them from parents who misused alcohol in Cadiz. Parents were outpatients of a Health Service and received treatment for the drinking problem; 118 students were children of nonalcoholic parents attending the same schools as the children of alcoholic parents. Both groups were compared on age, sex, school grade, and social environment. The study identified five variables on which performance by children of alcoholic parents was poorer: intelligence, repeating a grade, low academic performance, skipping school days, and dropping out of school. 相似文献
212.
Atienza M Cantero JL Dominguez-Marin E 《Learning & memory (Cold Spring Harbor, N.Y.)》2002,9(3):138-150
Improvement in perception takes place within the training session and from one session to the next. The present study aims at determining the time course of perceptual learning as revealed by changes in auditory event-related potentials (ERPs) reflecting preattentive processes. Subjects were trained to discriminate two complex auditory patterns in a single session. ERPs were recorded just before and after training, while subjects read a book and ignored stimulation. ERPs showed a negative wave called mismatch negativity (MMN)—which indexes automatic detection of a change in a homogeneous auditory sequence—just after subjects learned to consciously discriminate the two patterns. ERPs were recorded again 12, 24, 36, and 48 h later, just before testing performance on the discrimination task. Additional behavioral and neurophysiological changes were found several hours after the training session: an enhanced P2 at 24 h followed by shorter reaction times, and an enhanced MMN at 36 h. These results indicate that gains in performance on the discrimination of two complex auditory patterns are accompanied by different learning-dependent neurophysiological events evolving within different time frames, supporting the hypothesis that fast and slow neural changes underlie the acquisition of improved perception. 相似文献
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215.
To assemble a calibrated set of compassion-eliciting visual stimuli, 60 clinically healthy Mexican volunteers (36 women, 24 men; M age = 27.5 yr., SD = 2.4) assessed 84 pictures selected from the International Affective Picture System catalogue using the dimensions of Valence, Arousal, and Dominance included in the Self-assessment Manikin scale and an additional dimension of Compassion. Pictures showing suffering in social contexts and expressions of sadness elicited similar responses of compassion. The highest compassion response was reported for pictures showing illness and pain. Men and women differed in the intensity but not the quality of the compassionate responses. Compassion included attributes of negative emotions such as displeasure. The quality of the emotional response was not different from that previously reported for samples in the U.S.A., Spain, and Brazil. A set of 28 pictures was selected as high-compassion-evoking images and 28 as null-compassion controls suitable for studies designed to ascertain the neural substrates of this moral emotion. 相似文献
216.
Japanese children and adolescents (n=580) provided self-reports of stressor intensity, coping efforts, and adjustment. A new measure of Japanese adolescent coping was created, and psychometric analyses confirmed a reliable four-factor structure. Mean group difference analyses showed that girls reported higher levels of self-image and peer relations stress, and reported using isolation and problem-solving coping more and externalising coping less than males. Younger adolescents (5th/8th grades) reported higher stress in the domains of school, peer relations, and family relations, whereas older adolescents (10th grade) reported higher self-image problems. Statistical moderation was used to examine how youth negotiated the stress process. Females were found to be more responsive to appearance, family, and peer difficulties. Affiliation coping by females operated as a buffer between appearance anxiety and dissatisfaction with appearance. Externalizing coping was not associated with peer relations satisfaction for males, but it was negatively associated for females. 相似文献
217.
Small G proteins including Rac are mediators of changes in neuronal morphology associated with synaptic plasticity. Previous studies in our laboratory showed that Rac is highly expressed in the adult mouse hippocampus, a brain area that exhibits robust synaptic plasticity and is crucial for the acquisition of memories. In this study, we investigated whether Rac was involved in NMDA receptor-dependent associative fear learning in the area CA1 of adult mouse hippocampus. We found that Rac translocation and activation was increased in the hippocampus following associative fear conditioning in mice, and that these increases are blocked by intraperitoneal injection of the NMDA receptor channel blocker MK801 at the acquisition stage. Our data indicate that NMDA receptor-dependent associative fear learning alters Rac localization and function in the mouse hippocampus. 相似文献
218.
This study focuses on the mediator role of social comparison in the relationship between perceived breach of psychological contract and burnout. A previous model showing the hypothesized effects of perceived breach on burnout, both direct and mediated, is proposed. The final model reached an optimal fit to the data and was confirmed through multigroup analysis using a sample of Spanish teachers (N = 401) belonging to preprimary, primary, and secondary schools. Multigroup analyses showed that the model fit all groups adequately. 相似文献
219.
We investigated the dimensionality of the French version of the Rosenberg Self-Esteem Scale (RSES; Rosenberg, 1965) using confirmatory factor analysis. We tested models of 1 or 2 factors. Results suggest the RSES is a 1-dimensional scale with 3 highly correlated items. Comparison with the Revised NEO-Personality Inventory (NEO-PI-R; Costa, McCrae, & Rolland, 1998) demonstrated that Neuroticism correlated strongly and Extraversion and Conscientiousness moderately with the RSES. Depression accounted for 47% of the variance of the RSES. Other NEO-PI-R facets were also moderately related with self-esteem. 相似文献
220.
Alvarez L González-Castro P Núñez JC González-Pienda JA Alvarez D Bernardo AB 《Psicothema》2007,19(4):591-596
Is it possible to learn to attend? The purpose of this article is to provide information about the development, administration, and contrast of an intervention program to improve selective and sustained attention in students from 5 to 19 years of age, all attending school, and with difficulties to learn the academic materials corresponding to their age. Two groups participated in the study: one with difficulties in selective attention and the other with difficulties in sustained attention. The group with selective attention difficulties was made up of 102 students, of whom 59 made up the experimental group and 43 the control group. The group of students with difficulties in sustained attention was made up of 106 students, of whom 58 participated as the experimental group and 48 as the control group. The results indicate that this kind of intervention (which combines visual therapy, cortical activation, and training with activity banks) is effective to improve attentional deficits, both at the level of selective attention and of sustained attention. 相似文献