周围神经嵌压症诊治过程中的临床思维

运用自然辩证法培养良好的临床思维,指导周围神经嵌压症的诊治过程,有助于获得最佳诊治效果。诊断过程中需全面了解理论知识,学会科学观察,兼顾整体与局部的关系,通过合理分析与综合,可以做出确切诊断。治疗过程中需对有关医师的技术进行评价,采用控制论及系统论方法指导治疗,才能恢复周围神经的结构与功能。     

Material properties determine how force and position signals combine in haptic shape perception

When integrating estimates from redundant sensory signals, humans seem to weight these estimates according to their reliabilities. In the present study, human observers used active touch to judge the curvature of a shape. The curvature was specified by positional and force signals: When a finger slides across a surface, the finger's position follows the surface geometry (position signal). At the same time, it is exposed to patterns of forces depending on the gradient of the surface (force signal; Robles-de-la-Torre, G., & Hayward, V. (2001). Force can overcome object geometry in the perception of shape through active touch. Nature, 412, 445-448). We show that variations in the surface's material properties (compliance, friction) influence the sensorily available position and force signals, as well as the noise associated with these signals. Along with this, material properties affect the weights given to the position and force signals for curvature judgements. Our findings are consistent with the notion of an observer who weights signal estimates according to their reliabilities. That is, signal weights shifted with the signal noise, which in the present case resulted from active exploration.     

The Quality of Response Time Data Inference: A Blinded,Collaborative Assessment of the Validity of Cognitive Models

Psychonomic Bulletin & Review - Most data analyses rely on models. To complement statistical models, psychologists have developed cognitive models, which translate observed variables into...