急性心肌梗死患者小动脉弹性指数水平与各项危险因素的关系

探讨急性心肌梗死（AMI）患者小动脉弹性指数（C2）水平与各项风险因素的关系。纳入我院心血管内科于2010年1月～2013年7月间收治的AMI患者,并纳入同期入院的不稳定心绞痛（UA）患者作为对照组,收集相关临床资料,比较不同C2水平与相关指标的关联性发现：C2等11项危险因素存在显著差异,经多因素Logistic回归...     

道德感动的情绪效价特征:生理研究的证据

深入讨论道德感动的情绪效价特征,采用MP150多导生理记录仪测量个体在感动、积极、消极三种状态下心电、呼吸、皮电的自主神经系统生理心理指标并探讨其差异.结果 发现:感动状态下的皮电水平显著高于消极状态下的皮电水平,而与积极状态下的皮电水平不存在显著差异;感动、消极、积极三种状态下的心电、呼吸指标均不存在显著差异.结论:...     

Enhanced learning of natural visual sequences in newborn chicks

To what extent are newborn brains designed to operate over natural visual input? To address this question, we used a high-throughput controlled-rearing method to examine whether newborn chicks (Gallus gallus) show enhanced learning of natural visual sequences at the onset of vision. We took the same set of images and grouped them into either natural sequences (i.e., sequences showing different viewpoints of the same real-world object) or unnatural sequences (i.e., sequences showing different images of different real-world objects). When raised in virtual worlds containing natural sequences, newborn chicks developed the ability to recognize familiar images of objects. Conversely, when raised in virtual worlds containing unnatural sequences, newborn chicks’ object recognition abilities were severely impaired. In fact, the majority of the chicks raised with the unnatural sequences failed to recognize familiar images of objects despite acquiring over 100 h of visual experience with those images. Thus, newborn chicks show enhanced learning of natural visual sequences at the onset of vision. These results indicate that newborn brains are designed to operate over natural visual input.