Effect of Different Attentional Conditions on ERP Detection of Visual AcuityCSCD

Objective: To study the effect of different attentional conditions on the event-related potential (ERP) components generated by the visual information stimuli related to visual acuity, and provide a theoretical reference for clinical forensic visual objective evaluation. Methods: With visual acuity optotypes as normal form of visual information stimuli, 15 volunteers as study subjects were supposed to account the visual acuity optotypes under the attentional condition of visual stimuli. Furthermore, the subjects were required to listen to the storytelling carefully under the non-attentional condition of visual stimuli, and after the examination, they needed to answer the story-related questions. All the EEG results of two different attentional conditions from the subjects were recorded by 32 channel ERP system. Results: Under two attentional conditions, P1 and P300 components were evoked by the visual acuity optotypes on supra-threshold and threshold visual acuity levels, while only P1 component were evoked by the visual acuity optotypes on sub-threshold levels. In the ERP waveforms evoked by the visual acuity optotypes on supra-threshold, P1 and P300 amplitudes under attentional condition were larger than that under non-attentional condition. Conclusion: Attentional conditions can influence the detection of visual acuity. P300 component can be used to distinguish the visual acuity levels with supra-threshold and subthreshold under non-attentional condition. © 2017 by the Editorial Department of Journal of Forensic Medicine.     

凉血解毒法治疗慢性复发性结节性红斑30例

目的 观察凉血解毒法治疗慢性复发性结节性红斑的临床疗效。方法 给予30例慢性复发性结节性红班患者凉血解毒中药治疗2周,治疗前后分别观察患者血沉、C反应蛋白、视觉模拟评分以及局部水肿、结节、红斑、丘疹和紫癜积分。结果 治疗后患者血沉、C反应蛋白、视觉模拟评分以及局部水肿、结节、红斑、丘疹和紫癜积分均显著降低(P＜0.05),临床总有效率为97.0%,治愈率为63.3%。结论 凉血解毒法治疗慢性复发性结节性红斑具有较好的疗效。     

颈舒汤加减联合推拿康复治疗混合型颈椎病疗效观察

目的 观察中药内服联合推拿康复治疗混合型颈椎病疼痛和眩晕的临床疗效。方法 采用随机法将66例混合型颈椎病（颈痛、眩晕为主要症状）患者分为对照组和观察组,每组33例;两组患者均予以常规手法推拿、康复运动治疗,观察组在此基础上采用自拟中药汤剂颈舒汤加减内服联合治疗;分别于治疗前,治疗后3、7、10、14 d对两组患者进行疗效评估,采用视觉模拟量表（visual analogue scale,VAS）、颈性眩晕症状与功能评估量表（evaluation scale cervical vertigo,ESCV）对患者治疗前后疼痛、眩晕症状进行评分。结果 与同组治疗前比较,两组治疗3、7、10、14 d时VAS评分均显著降低（P＜0.05）,ESCV评分均显著增高（P<0.05）;治疗10、14 d时,观察组疼痛VAS评分显著低于对照组（P＜0.05）;治疗3、7、10、14 d时,观察组ESCV评分均显著高于对照组（P＜0.05）。观察组临床疗效优于对照组（P＜0.05）。结论 颈舒汤加减内服联合推拿康复治疗可有效缓解混合型颈椎病疼痛、眩晕症状,提高患者生活质量。     

PRVEP P100潜伏时、空间频率阈值与视敏度关系法医学探讨

目的通过研究眼损伤后不同空间频率下阈刺激时图形翻转视觉诱发电位(PRVEP)相关指标与视敏度之间的关系,试图探讨运用视觉诱发电位推算视敏度的方法及价值。方法对四川大学华西医院眼科门诊钝性眼外伤病例81眼以及正常对照眼(199眼)进行图形翻转视觉诱发电位检查,采用不同空间频率的刺激产生视觉诱发电位波,记录各阈刺激时P100潜伏时与波幅。采用统计学方法描述检测结果,并进行线性相关与回归分析。结果阈刺激空间频率(X)与视敏度的对数值(Y)之间关系密切,可以通过建立两者之间的相应回归方程用以推算视敏度;各组阈刺激时PRVEP P100潜伏时(X)与视敏度(Y)的对数值存在较好相关性。结论建立相应的回归方程推算视敏度是一种较客观、准确的方法,在常规眼科检查的基础上,有利于客观、准确地评定视功能障碍。     

领导者公共形象特性分析

从广义上说,政府形象包括领导者形象,也是政府系统向社会提供的“公共产品”之一。当我们述及领导者“公共形象”的时候,其实是指它的伦理形象。形体形象包含的视觉信息,是人格形象的物理基础。但是归根结底,形象的穿透力和影响力的关健,还在于它的伦理性而非它的物理性,在于其形象构造中的伦理元素和心理说服。领导者公共形象面临的最为基本的问题,是如何以人格、人品、人性、人情这些东西,去“说服”公众。领导者的公共形象,最为根本的,是“人格形象”的建造。对领导者公共形象的认识和对领导者公共形象的管理,正是建立在对公共伦理精神深入把握这一事实基础之上的。     

A forensic visual aid: Traces versus knowledge

In this paper, I introduce the Forensic Field Map (FFM) that provides a two-dimensional view on the forensic field. This field is by definition very broad, encompassing a wide range of scientific areas and activities. The forensic work that supports solving criminal cases ranges from recognizing and preserving traces at crime scenes to explaining forensic results as expert witness in court. This goes hand in hand with the development of scientifically based methods and tooling as well as legal, forensic and laboratory procedures. Although the FFM came into being while developing a (visual) framework for digital forensic investigations, the framework turned out to be generically applicable to other forensic disciplines.     

Frayed Connections,Fraught Projections: The Troubling Work of Shirin Neshat

Moore discusses the work of visual artist Shirin Neshat exhibited at the Serpentine Gallery, London, from July to September 2000, which comprised the photographic series Women of Allah and the video installation trilogy Turbulent, Rapture and Fervor . Her emphasis is on the way in which Neshat's work addresses the critical issues of positioning, representation and cross-cultural reception. The exhibition was marketed as referring to 'the social, cultural, and religious codes of Muslim societies in general, and Iranian society in particular'. Moore argues, however, that the images tend to project a departicularized cultural context that encourages a neo-orientalist interpretation. She first analyses Women of Allah in terms of symbolic projections of womanhood during the Islamic revolution in Iran and in light of post-revolutionary gendered realities. A critique is also mounted of Neshat'snostalgic self-investment in the revolutionary scene. In a discussion of the later video trilogy, Moore disentangles gendered and cross-cultural binaries in order to theorize the space between the dual screens. Her conclusion is that this intermediate space figures the ambivalence of a displaced cultural perspective. As such, it forces a spectatorial enactment of the frayed or troubled connections that the artist makes between two cultural locales.     

应用PRVEP P_(100)空间频率阈值客观评定视力的价值分析

目的研究图形翻转视觉诱发电位(PRVEP)P100波空间频率阈值在不同眼损伤情况下预估视力的价值,以期指导相关法医临床学鉴定。方法选取诊断明确、主观视力准确,另眼矫正视力基本正常(≥4.9)的法医学鉴定案例74例,共148眼别。分为4组:屈光间质混浊组(23眼别)、视网膜病变组(31眼别)、视神经病变组(20眼别)、健眼正常对照组(74眼别)。对上述案例进行图形翻转视觉诱发电位检查,记录P100空间频率阈值,并对空间频率阈值与视力的对数值,两者进行线性相关分析。结果184眼PRVEP空间频率阈值与视力的对数值之间呈显著的正相关(r=0.84,P<0.01),说明PRVEP P100空间频率阈值是客观评定视力的良好指标。但不同部位病变或损伤对PRVEP检测结果的影响不同,视神经病变组PRVEP空间频率阈值与主观视力两者间无统计学相关性(r=0.4,P>0.05)。结论PRVEP P100空间频率阈值是客观评定视力水平的良好手段,但不适用于严重的视神经病变等伴有视野显著缺损时的视力评定。     

眼外伤鉴定中辅助检查结果的综合分析评判

眼外伤的司法鉴定主要依据视觉功能状况,即视敏度和视野检测结果。视敏度主要依赖行为视力检测,视野依赖电脑视野检查。上述检查的主观性比较强,目前还没有完全客观的方法。眼部超声、光学相干断层扫描、眼部放射影像学等技术有助于眼球结构的检查,其结果是相对客观的。根据眼球结构变化的情况可以帮助分析、推测视觉功能的损害程度。传统和多焦眼电生理技术等一些眼科辅助检查手段也有助于验证主观检查结果。若能在结合案情、伤情及病历资料的基础上,综合采用多种辅助检查方法,可提高对视觉功能损害情况判断的准确性,进而提高司法鉴定结论的科学性、客观性和准确性。