Ambiguous figures, such as the reversible figure of the girl/old women (Boring, 1930), have inspired an enormous amount of research into the domain of visual perception. However, visual perception of unstructured figures, such as stains on walls, which contain no meanings themselves, has not been a main topic of research in healthy subjects or in subjects with autism spectrum disorder (ASD). The aims of this study were to obtain inkblot responses characteristic of subjects with ASD (n=36), to compare these response to those of healthy subjects (n=50), and to assess whether these responses had any relevance to ASD traits, as evaluated using standard questionnaires, such as the Autism-spectrum Quotient (AQ) and the Empathy Quotient (EQ). All of the responses of each subject were scored using the Exner Comprehensive Scoring System, which is the standard method for evaluating responses to the Rorschach test. The scores of total responses were not different between the subjects with ASD and healthy subjects. Only the scores for the variable designated FM were significantly lower in ASD subjects compared to healthy subjects, indicating that the subjects perceived animals in motion in their visual perceptions of unstructured figures in inkblots. Furthermore, the FM scores demonstrated a significantly inverse correlation with the AQ scores and were significantly correlated with the EQ scores. Each variable of M indicated a response of humans in motion, with m indicating a response of inanimate in motion, Human indicating total responses concerning humans, and Animal indicating total responses concerning animals; these measurements were not different between the two groups and were not correlated with the scores on the AQ or the EQ. Based on this preliminary study, representations of animals in motion in visual perception may be a subject that could shed light on the biological relevance between unstructured figures and autism traits.

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Background: Studies have suggested that failure to detect behavioural problems at a young age will directly result in more incidents of problem behaviour as well as serious behavioural problems after school age. Therefore, the early detection of such problems is crucial to prevent difficulties after adolescence. Researchers have attempted to evaluate the proportion of children with behavioural problems based on parent and teacher ratings, although discrepancies between the two sets of ratings have been noted. This study aimed to quantify the discrepancy in ratings between parents and teachers of children regarded as having behavioural problems, and to explore explanatory variables associated with the quantified discrepancy. Methods: The Strength and Difficulty Questionnaire (SDQ) for evaluating child behaviours was completed by parents and teachers of second graders (N=798) in elementary schools recruited by community-based sampling. Among the questionnaires collected, scores for 219 children with behavioural problems, defined as those whose parent or teacher scores were ≥13 points on the SDQ, were analysed. Mean difference in score (discrepancy score) between the parent and the teacher of each participating child was tested, and then the discrepancy score was linearly regressed onto potential explanatory variables. Results: Mean parent rating was significantly higher than mean teacher rating for both boys and girls. For boys with an assigned assistant and with a mother of older age, the discrepancy score was significant; that is, parents gave a lower score (fewer problems) than teachers. In the case of girls, the discrepancy score was significant for those with poor parental attachment; that is, parents gave a higher score (more problems) than teachers. Conclusion: In studies using the SDQ with elementary school students, the relationship of explanatory variables with discrepancy score needs to be taken into consideration and, on this basis, parent and teacher evaluations should be carefully interpreted

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Objective Modeling a stable and reproducible animal model of Parkinson's disease by rotenone intraperitoneal injection for further pathogenesis study of PD. Methods Twenty-seven male Wistar rats were used, which were randomly divided into three groups on average (Rotenone Injection, Vehicle Injection and Normal group). Rats of rotenone injection group (RIG) were administered rotenone (3.0 mg/kg/day) in a specialized vehicle through daily intraperitoneal injection; rats of vehicle injection group (VIG) were administered only special vehicle in the same way, rats of normal group (NG) didn't receive any injection. Checked the changes of its behavior and numbers of SNpc neurons to determine the model successful or not. Results Six rats of RIG developed part of Parkinson's symptoms at different time. All rats of RIG emerged behavioral deficits through rearing behavior testing and square bridge testing, and the mean number of SNpc neurons showed significant reduction. There were no behavioral deficits and changes of the mean number of SNpc neurons in rats of NG and VIG. Conclusion Model of Parkinson's disease by rotenone intraperitoneal injection was successfully established. This form of the rotenone model is stable and easy to reproduce, and may provide a new excellent supporter to related studies.

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Brain radiation therapy is an indispensable therapeutic modality for various primary and metastatic brain tumors and intracranial vascular malformation. With the development of stereotactic radiotherapy, the treatment effectiveness of radiotherapy is obvious; nevertheless, radiation-induced brain injury including both anatomic and functional deficits can not be ignored. Radiation-induced brain injury is a severe sequel after cranial radiation. It can result in a variety of acute, subacute, and delayed clinical syndromes of the brain. The primary changes of vascular endothelial cells, glial cell and neuron in radiation-induced brain injury were reviewed in this paper. In the CNS, single-dose radiation has been shown to result in apoptosis and a 15% loss of endothelial cells within 24 h. Vascular endothelial damage resulted in the change of blood brain barrier permeability. Gial cell damage was related to demyelination and cytokine and inflammatory mediator disorders. Irradiation induced typical apoptotic changes in neurons and affected hippocampal neurogenesis. Understanding the cellular changes may help to develop strategies to either increase the radiation tolerance or to treat CNS alterations induced by irradiation.

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