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101.
Isabela Zaine Camila Domeniconi Julio C. de Rose 《Journal of the experimental analysis of behavior》2016,105(3):362-374
Responding by exclusion is a type of emergent repertoire in which an individual chooses an alternative by the apparent exclusion of other available alternatives. In this case it is possible to respond appropriately to an undefined stimulus (one that has not previously acquired discriminative functions) by excluding the defined alternatives. There is evidence of exclusion in humans and nonhuman animals, although learning as an outcome of exclusion does not always occur. This study aimed to investigate exclusion in visual simple discriminations and learning of new simple discriminations resulting from exclusion in four border collies. Subjects were trained to perform simple simultaneous discriminations between pairs of tridimensional objects, and were then tested for exclusion, novelty control and learning of new simple discriminations. All dogs successfully responded by exclusion, choosing an undefined stimulus displayed with an S‐. For three dogs, it was possible to conclude that these previously undefined stimuli acquired S+ functions, documenting learning of new simple discriminations. However, this required up to four exposures to exclusion trials with each pair of stimuli. 相似文献
102.
Establishing motion control in children with autism and intellectual disability: Applications for anatomical and functional MRI
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Alison D. Cox Javier Virues‐Ortega Flavia Julio Toby L. Martin 《Journal of applied behavior analysis》2017,50(1):8-26
Excessive motion makes magnetic resonance imaging (MRI) extremely challenging among children with autism spectrum disorder (ASD). The medical risks of sedation establish the need for behavioral interventions to promote motion control among children with ASD undergoing MRI scans. We present a series of experiments aimed at establishing both tolerance of the MRI environment and a level of motion control that would be compatible with a successful MRI. During Study 1, we evaluated the effects of prompting and contingent reinforcement on compliance with a sequence of successive approximations to an MRI using a mock MRI. During Study 2, we used prompting and progressive differential reinforcement of other behaviors (DRO) to promote motion control in a mock MRI for increasing periods of time. Finally, during Study 3, some of the participants underwent a real MRI scan while a detailed in‐session motion analysis informed the quality of the images captured. 相似文献
103.
Almeida-Verdu AC Huziwara EM de Souza DG De Rose JC Bevilacqua MC Lopes J Alves CO McIlvane WJ 《Journal of the experimental analysis of behavior》2008,89(3):407-424
This four-experiment series sought to evaluate the potential of children with neurosensory deafness and cochlear implants to exhibit auditory-visual and visual-visual stimulus equivalence relations within a matching-to-sample format. Twelve children who became deaf prior to acquiring language (prelingual) and four who became deaf afterwards (postlingual) were studied. All children learned auditory-visual conditional discriminations and nearly all showed emergent equivalence relations. Naming tests, conducted with a subset of the children, showed no consistent relationship to the equivalence-test outcomes. This study makes several contributions to the literature on stimulus equivalence. First, it demonstrates that both pre- and postlingually deaf children can acquire auditory-visual equivalence relations after cochlear implantation, thus demonstrating symbolic functioning. Second, it directs attention to a population that may be especially interesting for researchers seeking to analyze the relationship between speaker and listener repertoires. Third, it demonstrates the feasibility of conducting experimental studies of stimulus control processes within the limitations of a hospital, which these children must visit routinely for the maintenance of their cochlear implants. 相似文献
104.
The aim of this study was to analyse the psychometric properties of the Sydney Attribution Scale in a sample of 1,508 college students. Factor analysis identified six factors: Success/Ability, Success/Effort, Success/External Causes, Failure/Ability, Failure/Effort, and Failure/External Causes. Success and failure factors accounted for an adequate percentage of the variance. Internal consistency was acceptable, similar in the success scales and in the failure scales, and higher in the internal scales than in the external scales. The results also showed a clear predictable pattern of relationships between dimensions of self-attribution, and between these dimensions and several measures of general self-efficacy, intrinsic motivation, extrinsic motivation, satisfaction with the studies, satisfaction with performance, and satisfaction with knowledge, which supports the construct validity of the SAS. 相似文献
105.
González-Pienda JA Alvarez L González-Castro P Núñez JC Bernardo A Alvarez D 《Psicothema》2008,20(1):49-55
The aim of this study is to provide information about the effects of strategic training in the area of social sciences (1) on the real level, as well as perceived competence in terms of the students' skills to select, organise and produce information; and (2) on their attitude and motivation towards working in this area of the curriculum. 107 students took part in this study, 57 of whom were the control group and 50 the experimental one. They were all enrolled in the third year of secondary school (9th year). The teachers and students who took part in this experience followed an on-line course to manage the strategy for approximately three months. Subsequently, the teacher introduced the tool in class, applying it both from a conceptual and a procedural point of view. The results show that the strategic training implemented in this study greatly improved written understanding procedures (both literal and inferential), increased perceived competence to manage internal information (selection, organization, and elaboration), and generated positive changes in terms of students' attitude and motivation towards working in the area of social sciences. 相似文献
106.
One of the main objectives in meta-analysis is to estimate the overall effect size by calculating a confidence interval (CI). The usual procedure consists of assuming a standard normal distribution and a sampling variance defined as the inverse of the sum of the estimated weights of the effect sizes. But this procedure does not take into account the uncertainty due to the fact that the heterogeneity variance (tau2) and the within-study variances have to be estimated, leading to CIs that are too narrow with the consequence that the actual coverage probability is smaller than the nominal confidence level. In this article, the performances of 3 alternatives to the standard CI procedure are examined under a random-effects model and 8 different tau2 estimators to estimate the weights: the t distribution CI, the weighted variance CI (with an improved variance), and the quantile approximation method (recently proposed). The results of a Monte Carlo simulation showed that the weighted variance CI outperformed the other methods regardless of the tau2 estimator, the value of tau2, the number of studies, and the sample size. 相似文献
107.
Do serotonin1–7 receptors modulate short and long-term memory? 总被引:1,自引:0,他引:1
Meneses A 《Neurobiology of learning and memory》2007,87(4):561-572
Evidence from invertebrates to human studies indicates that serotonin (5-hydroxytryptamine; 5-HT) system modulates short- (STM) and long-term memory (LTM). This work is primarily focused on analyzing the contribution of 5-HT, cholinergic and glutamatergic receptors as well as protein synthesis to STM and LTM of an autoshaping learning task. It was observed that the inhibition of hippocampal protein synthesis or new mRNA did not produce a significant effect on autoshaping STM performance but it did impair LTM. Both non-contingent protein inhibition and 5-HT depletion showed no effects. It was basically the non-selective 5-HT receptor antagonist cyproheptadine, which facilitated STM. However, the blockade of glutamatergic and cholinergic transmission impaired STM. In contrast, the selective 5-HT(1B) receptor antagonist SB-224289 facilitated both STM and LTM. Selective receptor antagonists for the 5-HT(1A) (WAY100635), 5-HT(1D) (GR127935), 5-HT(2A) (MDL100907), 5-HT(2C/2B) (SB-200646), 5-HT(3) (ondansetron) or 5-HT(4) (GR125487), 5-HT(6) (Ro 04-6790, SB-399885 and SB-35713) or 5-HT(7) (SB-269970) did not impact STM. Nevertheless, WAY100635, MDL100907, SB-200646, GR125487, Ro 04-6790, SB-399885 or SB-357134 facilitated LTM. Notably, some of these changes shown to be independent of food-intake. Concomitantly, these data indicate that '5-HT tone via 5-HT(1B) receptors' might function in a serial manner from STM to LTM, whereas working in parallel using 5-HT(1A), 5-HT(2A), 5-HT(2B/2C), 5-HT(4), or 5-HT(6) receptors. 相似文献
108.
Pais-Ribeiro J Silva I Ferreira T Martins A Meneses R Baltar M 《Psychology, health & medicine》2007,12(2):225-35; quiz 235-7
The study aims to develop and assess metric proprieties of the Portuguese version of the Hospital Anxiety and Depression Scale. A sequential sample includes 1322 participants diagnosed with cancer, stroke, epilepsy, coronary heart disease, diabetes, myotonic dystrophy, obstructive sleep apnoea, depression and a non-disease group, which completed the HADS. The first step includes translation, retroversion, inspection for lexical equivalence and content validity, and cognitive debriefing. Then we reproduce oblique exploratory factor analysis and use confirmatory factor analysis. We explore the sensibility of the questionnaire. The validation process of the Portuguese HADS version shows metric properties similar to those in international studies, suggesting that it measures the same constructs, in the same way, as the original HADS form. 相似文献
109.
Spirituality and Resilience in Trauma Victims 总被引:1,自引:0,他引:1
Julio F. P. Peres Alexander Moreira-Almeida Harold G. Koenig 《Journal of religion and health》2007,46(3):343-350
The way people process stressors is critical in determining whether or not trauma will be experienced. Some clinical and neuroimaging
findings suggest that posttraumatic stress disorder patients experience difficulty in synthesizing the traumatic experience
in a comprehensive narrative. Religiousness and spirituality are strongly based on a personal quest for understanding of questions
about life and meaning. Building narratives based on healthy perspectives may facilitate the integration of traumatic sensorial
fragments in a new cognitive synthesis, thus working to decrease post-traumatic symptoms. Given the potential effects of spiritual
and religious beliefs on coping with traumatic events, the study of the role of spirituality in fostering resilience in trauma
survivors may advance our understanding of human adaptation to trauma. 相似文献
110.
Julio Pérez‐López María Del Carmen González Salinas María Teresa Martínez‐Fuentes 《欧洲人格杂志》2000,14(1):21-37
This study analyzed the stability of individual differences in temperament and the convergence between two kinds of measures used to assess temperament: maternal report (IBQ and TBAQ), and laboratory measures. Sixty children were assessed at 3, 6, 9 and 12 months of age and their mothers' reports were collected at the same time. Mothers' perceptions of their children's temperament showed high stability across the range of children's ages. In laboratory, however, moderate stability was found only for the period between 9 and 12 months. Convergence between laboratory and maternal report measures was found at 6 and 12 months. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献