Food stealing is often a serious behavioral problem among children with diagnoses of autism and other developmental disorders. Very few empirical studies concerning this behavioral challenge have been reported. We applied a correspondence training procedure to teach self-control as replacement behavior to four children with autism and developmental disorders who displayed food stealing in the community. A changing criterion design embedded within a nonconcurrent multiple-probe across participants design was used. The treatment succeeded for all four participants by increasing latency to eating highly preferred food to a predetermined criterion and reducing occurrences of food stealing to zero. Three participants generalized the replacement behavior to natural settings and maintained the behavior for 2 weeks, 1 month, 2 months, 3 months, and 4 months. One participant without expressive language was taught successfully during treatment trials but failed to maintain and generalize the behavior. A functional relation between delaying food eating and Say-Do correspondence training was demonstrated. 相似文献
The high self-esteem (HSE) heterogeneity hypothesis provides a new research perspective for investigating differences in the quantity and quality of different types of self-esteem. The present study adopted the emotional Stroop paradigm and the odd-one-out search task to explore how individuals with different types of self-esteem process social information in self-threatening situations. The results showed that individuals with different types of self-esteem had an attentional bias toward negative information and had different attentional biases toward angry faces in self-threatening situations. Individuals with fragile HSE and low self-esteem showed facilitated attention to angry faces and had difficulty drawing attention away from them; secure HSE individuals only showed difficulty disengaging attention from angry faces.
The current study was designed to examine the trend of depression among children affected by HIV (n = 1,221) in rural China over a period of 3 years and to explore baseline psychosocial factors that can predict depressive symptoms at 1- and 2-year follow-ups. Baseline depression score, trusting relationship with caregivers, perceived public stigma against children affected by HIV, and future expectation at baseline positively predicted the 1-year follow-up depression, while children’ self-report health status, self-esteem, and perceived social support negatively predicted depression at 1-year follow-up survey. Depression and self-report health status at baseline significantly predicted depression at the 2-year follow-up. The data in the current study suggested that depressive symptoms were chronic or recurring among some children affected by HIV/AIDS. The findings also underscore the importance of early identification, early intervention, and ongoing counseling for mental health problems among children affected by HIV/AIDS. Future psychological support programs need to target both mental health symptoms and resilient factors that will help these children to cope with adverse life events associated with HIV/AIDS. 相似文献
The directional solidification process of ternary Ag42.4Cu21.6Sb36 eutectic alloy within a wide growth rate range from 2 to 60 μm/s was accomplished at a constant temperature gradient of 50 K/cm. As growth rate increases, the ternary (θ(Cu2Sb) + ε(Ag3Sb) + Sb) eutectic morphology evolves from “lamellar (θ + ε) plus fibrous (Sb)” structure into “(θ + Sb) fibres in continuous ε matrix” structure. The θ and (Sb) phase spacings decrease with the increase of growth rate according to power functions with exponent values of 0.55 and 0.56, respectively. It is also found that the microhardness of directionally solidified Ag42.4Cu21.6Sb36 alloy samples is enhanced with the increase of growth rate, and the decrease of θ and (Sb) phase spacings. 相似文献