全视野汉字词义联想的ERP特征与汉字认识的ERP甄别

实验刺激模式为“预备信号纯音－屏幕呈现一个提示字一屏幕呈现一个操作字”。令被试者用操作字联想出另一个字以组成词,并口述之。实验组依联想性质分为具体与抽象二项,另进行一项对照实验。每项实验的操作字皆分为认识与不认识两类,脑电记录点为Ｆｚ,Ｃｚ,Ｐｚ,Ｐ３－Ｔ５中点,Ｐ４－Ｔ６中点,主要观察到：（１）词义联想引起Ｐ３与正慢波（ＰＳＷ）波幅增大。（２）不认识字联想可导致ＰＳＷ波幅极显著地增大和潜伏期极显著地延长,（３）无论汉字是否认识,对照组ＰＳＷ波幅较两个实验组皆高。（４）从ＰＳＷ中提取出了反映汉字认识与否的纯心理性Ｐ８００成分。（５）对照组的Ｐ８００始潜时较两个实验组皆长,这些实验结果表明,除前人提出的ＰＳＷ具有信息加工完成之认知含义外,ＰＳＷ尚与汉字形音认知、联想等多重信息加工相关,很可能是复合波;汉字的形音义加工间存在着错综复杂的关系,难以分割;在本实验条件下可使用ＰＳＷ或Ｐ８００成分作为甄别汉字是否认识的客观标志。     

细胞因子和抑郁症

在心理神经免疫学领域,越来越多的证据表明神经和免疫之间存在双向交流通路,免疫系统可能在一些心理精神障碍中具有重要作用。“抑郁症的细胞因子假说”认为细胞因子作为神经调质,可能在抑郁症的病因和病理过程中具有重要作用。这个假说得到了很多证据的支持。而在动物身上应用前炎性细胞因子也能够引起与人类抑郁症行为症状非常类似的“病态行为”。研究认为外周细胞因子通过信号传导进入脑内与中枢产生的细胞因子共同作用于下丘脑－垂体－肾上腺轴和5－羟色胺系统,从而导致抑郁症。细胞因子的中枢效应可以解释很多抑郁症状,“抑郁症的细胞因子假说”为探讨抑郁症状的机制和治疗抑郁症提供了一个新的视角     

学校组织气氛与教师工作绩效的关系分析

本研究借助于自编的学校组织气氛量表和教师工作绩效量表,通过对分层随机抽取的378名教师进行了调查,探讨了学校组织气氛与教师工作绩效的关系,结果发现学校组织气氛与教师工作绩效相关非常显著。回归分析和差异检验的结果进一步揭示:学校组织气氛是教师工作绩效的较好预测变量。其中,教学气氛是教师工作绩效的显著预测变量。同时,本研究还发现学校组织气氛对教师任务绩效影响非常显著,但对教师情境绩效影响不显著。     

Treating the Capability for Suicide: A Vital and Understudied Frontier in Suicide Prevention

Current efforts at suicide prevention center largely on reducing suicidal desire among individuals hospitalized for suicidality or being treated for related psychopathology. Such efforts have yielded evidence‐based treatments, and yet the national suicide rate has continued to climb. We propose that this disconnect is heavily influenced by an unmet need to consider population‐level interventions aimed at reducing the capability for suicide. Drawing on lessons learned from other public health phenomena that have seen drastic declines in frequency in recent decades (HIV, lung cancer, motor vehicle accidents), we propose that current suicidality treatment efforts trail current suicidality theories in their lack of focus on the extent to which individuals thinking about suicide are capable of transitioning from ideation to attempt. We summarize extant evidence for specific capability‐centered approaches (e.g., means safety) and propose other options for improving our ability to address this largely overlooked variable. We also note that population‐level approaches in this regard would represent an important opportunity to decrease risk in individuals who either lack access to evidence‐based care or underreport suicidal ideation, as a reduced capability for suicide would theoretically diminish the potency of suicidal desire and, in this sense, lower the odds of a transition from ideation to attempt.     

Concerns of Older Veteran Callers to the Veterans Crisis Line

When the Veterans Crisis Line (VCL) was implemented, it was uncertain if veterans, and particularly older male veterans, would utilize the service. We examined VCL use by a growing group of veterans at increased risk for suicide: those aged 60 and older. Real‐time clinical data were gathered from a weekly random sampling of calls. Approximately 25% of calls were from veterans aged 60 or older; over 80% reported benefit from the call. Several significant differences in presenting concerns between older and younger callers were found. Targeted outreach to encourage older veterans to use the VCL is suggested.     

小学儿童英文音位识别的特点

以107名3年级儿童为对象,采用音位分割的测试方法,探讨小学儿童英文音位识别的特点.结果表明:(1)小学儿童在完成音位分割任务时并非总是以个体音位为基础,其行为结果受到语音学因素-响音度的影响.(2)字母名称结构对小学儿童英文音位分割行为的影响不显著.     

Correlates of Serious Suicidal Ideation and Attempts in Female Adult Sexual Assault Survivors

Relations between (a) serious suicidal ideation and attempts and (b) demographics, trauma history, assault characteristics, post‐assault outcomes, and psy‐chosocial variables were examined among female adult sexual assault survivors. Younger, minority, and bisexual survivors reported greater ideation. More traumas, drug use, and assault disclosure related to greater attempts, whereas perceived control over recovery was related to fewer attempts. Child sexual abuse and some assault characteristics predicted suicidal behavior. Depression was related to suicidal behavior until psychosocial variables were accounted for. Specifically, using substances to cope and self‐blame predicted greater ideation, whereas receiving aid/information support was related to less ideation. Implications for research and treatment are discussed.     

Drug Ingestions in Children 10–14 Years Old: An Old Problem Revisited

To determine changes in rates of drug ingestions in 10–14 year old children in our country, a retrospective chart review of 10–14 year olds hospitalized for drug ingestion between 1993–1995 and 2000–2004 was performed. Odds ratios and Chi‐square were used for analyses. From 1993–1995 there were 92.8 ingestions/100,000 children/year; from 2000–2004 there were 63.3 ingestions/100,000 children/year. More males ingested in 2000–2004 than 1993–1995 (26.3% vs. 14.2% O.R. 2.15 [1.19, 3.92]). More patients took psychiatric medications in 2000–2004 than 1993–1995 (38.9% vs. 27.0%, O.R. 1.72 [1.06, 2.80]). More patients ingested SSRIs in 2000–2004 than 1993–1995; fewer ingested tricyclics. Hospitalization rates for drug ingestions have decreased. There has been a change in drug ingested, and more males are ingesting drugs.