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排序方式: 共有122条查询结果,搜索用时 31 毫秒
11.
Alvaro de Ansorena Cao Javier Cobo Reinoso Ignacio Romero Cagigal 《Estudios de Psicología》2013,34(16):30-45
RESUMENSe trata en este artículo de dar una visión sucinta y comprensiva del tratamiento que, desde el ámbito de la Psicología científica, ha recibido el tema de la ansiedad. Casi todas las escuelas, tanto clínicas como experimentales, han intentado dar una explicación, cada cual con su método y de sus principios teóricos a este complejo fenómeno. Aquí se analizarán cuatro enfoques: Psicodinámica y humanística; Experimental motivacional; Psicométrico-factorial; Cognitivo-conductual. También se presenta, al final, de modo sintético, un resumen que trata de integrar las diferentes aportaciones que se han producido en el desarrollo del estudio científico del tema ansiedad. 相似文献
12.
Alexander Dovgopoly Eduardo Mercado III 《Cognitive, affective & behavioral neuroscience》2013,13(2):371-389
Individuals with autism spectrum disorder (ASD) show atypical patterns of learning and generalization. We explored the possible impacts of autism-related neural abnormalities on perceptual category learning using a neural network model of visual cortical processing. When applied to experiments in which children or adults were trained to classify complex two-dimensional images, the model can account for atypical patterns of perceptual generalization. This is only possible, however, when individual differences in learning are taken into account. In particular, analyses performed with a self-organizing map suggested that individuals with high-functioning ASD show two distinct generalization patterns: one that is comparable to typical patterns, and a second in which there is almost no generalization. The model leads to novel predictions about how individuals will generalize when trained with simplified input sets and can explain why some researchers have failed to detect learning or generalization deficits in prior studies of category learning by individuals with autism. On the basis of these simulations, we propose that deficits in basic neural plasticity mechanisms may be sufficient to account for the atypical patterns of perceptual category learning and generalization associated with autism, but they do not account for why only a subset of individuals with autism would show such deficits. If variations in performance across subgroups reflect heterogeneous neural abnormalities, then future behavioral and neuroimaging studies of individuals with ASD will need to account for such disparities. 相似文献
13.
Joseph DeGutis Garga Chatterjee Rogelio J. Mercado Ken Nakayama 《Visual cognition》2013,21(10):1242-1253
Face identification deficits in developmental prosopagnosics (DPs) have been thought to be due to general difficulties with processing configural face information and integrating configural and parts information into a coherent whole (holistic processing). Gender recognition provides a further opportunity to more fully examine this issue as this ability may be intact in DPs and it has been shown to depend on processing configural information and holistic processing in neurotypical individuals. In the present study we first determined that, indeed, gender discrimination performance was similar in DPs and controls. Second, we found that inversion and scrambling (which we propose measures holistic processing and sensitivity to configural information, respectively) produced comparable deficits in DPs and controls, suggesting that both groups use holistic processing and configural information to recognize gender. This indicates that holistic processing and using configural face information are not general impairments in DP and may be more specific to face identity. 相似文献
14.
Recent research on brain activity suggests that visual attention increases in response to emotional images. This increase is reflected in signs of greater activity, in response to different emotional visual stimuli, in parietal and parietooccipital areas in several studies employing neuroimaging techniques and event-related potentials (ERPs). In the latter case, greater parietal and parietooccipital negativities have been observed. The objective of the present study was to examine the role of a person's level of motivation towards the emotional stimulus with respect to this ERP pattern. Two groups of stimuli were presented to 60 participants: neutral or N (photographs of taps) and appetitive or A (photographs of cakes). The level of hunger was measured via a questionnaire. Recordings were taken at PO3, PO4, P7, and P8. The largest differences, as a function of appetite, were produced between 575 and 625 ms. Multiple regression analyses were carried out to study the relationship between subjects' appetite and their ERP recordings in response to A and N stimuli. There was a significant negative association between appetite and 575–625 mean amplitude in response to stimulus A at PO3 and PO4. 相似文献
15.
Wisniewski Matthew G. Church Barbara A. Mercado Eduardo Radell Milen L. Zakrzewski Alexandria C. 《Psychonomic bulletin & review》2019,26(6):1889-1895
Psychonomic Bulletin & Review - Starting perceptual training at easy levels before progressing to difficult levels generally produces better learning outcomes than constantly difficult training... 相似文献
16.
Elena Solesio-Jofre José María López-Frutos Nathan Cashdollar Sara Aurtenetxe Ignacio de Ramón Fernando Maestú 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2017,24(3):299-320
Normal aging is associated with deficits in working memory processes. However, the majority of research has focused on storage or inhibitory processes using unimodal paradigms, without addressing their relationships using different sensory modalities. Hence, we pursued two objectives. First, was to examine the effects of aging on storage and inhibitory processes. Second, was to evaluate aging effects on multisensory integration of visual and auditory stimuli. To this end, young and older participants performed a multimodal task for visual and auditory pairs of stimuli with increasing memory load at encoding and interference during retention. Our results showed an age-related increased vulnerability to interrupting and distracting interference reflecting inhibitory deficits related to the off-line reactivation and on-line suppression of relevant and irrelevant information, respectively. Storage capacity was impaired with increasing task demands in both age groups. Additionally, older adults showed a deficit in multisensory integration, with poorer performance for new visual compared to new auditory information. 相似文献
17.
Ignacio Correa-Velez Sandra M. Gifford Celia McMichael Robyn Sampson 《Journal of International Migration and Integration》2017,18(3):791-805
Being able to attend school and achieve an education is one of the most desired opportunities among resettled refugee young people. However, turning educational aspirations into reality is not straightforward. There is a large body of research documenting the barriers associated with educational achievement among refugees who resettle as teenagers, both in Australia and internationally. No studies, however, have identified the factors that predict completion of secondary school among resettled refugee youth over time. This paper reports the predictors of completion of secondary school among a cohort of 47 refugee youth resettled in Melbourne, Australia. Eight to 9 years after resettlement, 29 (62 %) had completed secondary school and 18 (38 %) had left school prior to completing year 12. Age on arrival and experiences of discrimination in Australia were significant predictors of secondary school completion. Older refugee youth (on arrival) and those who reported experiences of discrimination over the first 8 to 9 years in Australia were significantly less likely to complete secondary school. This longitudinal study confirms that, as a group, refugee youth are particularly at risk of not completing secondary school education, which can have an impact on their wellbeing and long-term socio-economic standing in their settlement country. Our study provides further evidence of the negative impact of discrimination on the educational outcomes of disadvantaged young people. 相似文献
18.
The need to study the positive aspects of body image led to the design of the Body Appreciation Scale (BAS). The aim of the present study was to develop a Spanish adaptation of the BAS for adolescents, testing its factor structure, construct validity and any differences between girls and boys. Participants were 312 adolescents aged between 12 and 20; there were 148 females and 164 males. The validation analysis of the BAS revealed a one-factor structure with adequate internal consistency (Cronbach's alpha = .908) and construct validity (correlations with body mass index, influence of the body shape model, perceived stress, coping strategies, self-esteem and variables from the Eating Disorders Inventory-2), as well as significant differences between boys and girls (p < .01). The BAS is suitable for administration in a Spanish adolescent population as a way of analysing the positive aspects of body image. 相似文献
19.
Church BA Krauss MS Lopata C Toomey JA Thomeer ML Coutinho MV Volker MA Mercado E 《Psychonomic bulletin & review》2010,17(6):862-868
Children with autism spectrum disorder process many perceptual and social events differently from typically developing children,
suggesting that they may also form and recognize categories differently. We used a dot pattern categorization task and prototype
comparison modeling to compare categorical processing in children with high-functioning autism spectrum disorder and matched
typical controls. We were interested in whether there were differences in how children with autism use average similarity
information about a category to make decisions. During testing, the group with autism spectrum disorder endorsed prototypes
less and was seemingly less sensitive to differences between to-be-categorized items and the prototype. The findings suggest
that individuals with high-functioning autism spectrum disorder are less likely to use overall average similarity when forming
categories or making categorical decisions. Such differences in category formation and use may negatively impact processing
of socially relevant information, such as facial expressions. A supplemental appendix for this article may be downloaded from
http://pbr.psychonomic-journals.org/content/supplemental. 相似文献
20.
Pilar Segura-Torres Laura Aldavert-Vera Anna Gatell-Segura Diego Redolar-Ripoll Ignacio Morgado-Bernal 《Neurobiology of learning and memory》2010,93(1):117-126
We studied the capacity of post-training intracranial self-stimulation (SS) to reverse or ameliorate learning and memory impairments caused by amygdala damage in rats. A first experiment showed that lesions of the basolateral amygdala (BLA) slow down acquisition of two-way active avoidance conditioning (2wAA). In a second experiment we observed that a post-training SS treatment administered immediately after each 2wAA conditioning session is able to completely reverse the disruptive effects of the BLA lesions, and the facilitative effect lasts for 10 days. A third experiment allowed us to differentiate the strong recuperative effects of the SS treatment from the slight effect caused by overtraining the same conditioning response. We concluded that SS is able to counteract the behavioral deficit induced by BLA damage, probably by activating alternative undamaged brain structures related to learning and memory, such as the hippocampus. 相似文献