语音象征的产生机制：基于敏感期的先天后天作用模型

Bouba-Kiki效应(简称BK效应)指语音和形状特征之间的映射关系。针对BK效应的产生机制,先天论和后天论之间争论激烈。先天论的观点认为人们对语音象征的敏感性是出生时便存在的一种语言机制。而后天论的观点则强调语音象征是语言经验的产物。上述理论均获得大量研究证据的支持,且均无法完全否定对方。这表明,上述理论可能均未完整揭示语音象征的产生机制。鉴于此,针对BK效应的产生机制,梳理先天论与后天论的支持证据,并率先提出语言相关的BK效应敏感期假设。同时,梳理了支持BK效应敏感期的初步研究证据及可能的影响因素。进而,以语言相关的BK效应敏感期假设为基础,提出语音象征产生的先天后天相互作用模型,以整合以往研究中的矛盾。最后,展望了语音象征的未来研究进展和方向。     

Suicide Intervention Skills and Related Factors in Community and Health Professionals

Health and community professionals have considerable exposure to suicidal people and need to be well skilled to deal with them. We assessed suicide intervention skills with a Dutch version of the SIRI in 980 health and community professionals and psychology students. Suicide intervention skills clearly differed among professional groups and were strongly related to experience, especially suicide‐specific experience. Some community professionals scored below acceptable levels on their ability to respond appropriately to suicidal people they encounter, and tended to overestimate their skills level. Training is therefore indicated for these groups, and may be useful to more highly experienced groups too.     

Interaction of Combat Exposure and Unit Cohesion in Predicting Suicide‐Related Ideation Among Post‐Deployment Soldiers

Suicide is one of the leading causes of death among U.S. Army soldiers. Suicide‐related ideation, which is associated with suicide attempts and suicide, can cause considerable distress. In a sample of 1,663 recently redeployed soldiers, we used factor analysis and structural equation modeling to test the associations between combat exposure, unit cohesion, and their interaction in predicting suicide‐related ideation. We found that combat exposure was a significant risk factor for suicide‐related ideation, while unit cohesion was a significant protective factor. The significant interaction between the two factors indicated that soldiers who experienced greater combat exposure but also had higher levels of unit cohesion had relatively lower levels of suicide‐related ideation. In addition, those who had higher levels of combat exposure and lower unit cohesion were most at risk for suicide‐related ideation. Our findings indicate the importance of unit cohesion in protecting soldiers from suicide‐related ideation and suggest a higher risk group of soldiers who should be targeted for interventions.     

Trajectories of Suicide Ideation,Nonsuicidal Self‐Injury,and Suicide Attempts in a Nonclinical Sample of Military Personnel and Veterans

Nonsuicidal self‐injury (NSSI) is a risk factor for suicide attempts, but little is known about NSSI among military personnel and veterans, or about the temporal sequencing of NSSI relative to suicide ideation and attempts. This study evaluates trajectories of suicide ideation, NSSI, and suicide attempts in a sample of 422 military personnel and veterans. Of those with a history of NSSI, 77% also experienced suicide ideation. Suicide ideation emerged before NSSI (67%) more often than the reverse (17%). Of those with a history of suicide attempt, 41% also engaged in NSSI. NSSI emerged prior to the first suicide attempt (91%) more often than the reverse (9%). The length of time from suicide ideation to suicide attempt was longer for those who first engaged in NSSI (median = 3.5 years) compared with those who did not engage in NSSI (median = 0.0 years), Wald χ²(1) = 11.985, p = .002. Age of onset was earlier for participants reporting NSSI only compared with those reporting both NSSI and suicide attempts (16.71 vs. 22.08 years), F(1, 45) = 4.149, p = .048. NSSI may serve as a “stepping stone” from suicide ideation to attempts for 41% of those who attempt suicide.     

Comparisons of the Interpersonal–Psychological Theory of Suicide Constructs Among Individuals Without Suicidality,Ideators, Planners,and Attempters

The Interpersonal–Psychological Theory of Suicide (IPTS) proposes that combinations of thwarted belongingness, perceived burdensomeness, and acquired capability lead to suicide ideation, planning, and attempting. We compared individuals with and without suicidality on thwarted belongingness and perceived burdensomeness, and compared a combined group of planners and attempters to ideators on fearlessness about death (one component of acquired capability). Individuals with suicidality had higher thwarted belongingness and perceived burdensomeness than individuals without suicidality. Planners and attempters did not have higher fearlessness about death than ideators. These findings partially support IPTS hypotheses. Assessing thwarted belongingness and perceived burdensomeness may improve suicide risk determination.     

Suicidal Ideation and Behavior in Adolescents Aged 12–16 Years: A 17‐Year Follow‐Up

The prevalence of suicidal ideation/behavior in 1983 or 1987 and its association with future mental health in 2001 were evaluated in a provincially representative sample of Canadian adolescents (n = 1,248) aged 12 to 16 years. Approximately 13.3% (95% CI = 11.5–15.3) of adolescents self‐reported suicidal ideation/behavior. Adolescent agreement with parent (κ = .07) and teacher (κ = .05) reports at baseline was low because adults identified so few subjects. In adulthood, the associations between adolescent self‐reports of suicidal behavior/ideation and major depression and other mental health indicators were explained by respondent sex and adolescent emotional problems reported in 1983/1987. Adolescents with suicidal behavior/ideation often are not recognized by their parents and teachers and may be at risk for persistent psychiatric problems attributable to coexisting mental health problems early‐on.     

I Can Stomach That! Fearlessness About Death Predicts Attenuated Facial Electromyography Activity in Response to Death‐Related Images

Objective measures of suicide risk can convey life‐saving information to clinicians, but few such measures exist. This study examined an objective measure of fearlessness about death (FAD), testing whether FAD relates to self‐reported and physiological aversion to death. Females (n = 87) reported FAD and disgust sensitivity, and facial electromyography was used to measure physiological facial responses consistent with disgust while viewing death‐related images. FAD predicted attenuated expression of physiological death aversion, even when controlling for self‐reported death‐related disgust sensitivity. Diminished physiological aversion to death‐related stimuli holds promise as an objective measure of FAD and suicide risk.     

Mental Disorders,Comorbidity, and Pre‐enlistment Suicidal Behavior Among New Soldiers in the U.S. Army: Results from the Army Study to Assess Risk and Resilience in Servicemembers (Army STARRS)

We examined the associations between mental disorders and suicidal behavior (ideation, plans, and attempts) among new soldiers using data from the New Soldier Study (NSS) component of the Army Study to Assess Risk and Resilience in Servicemembers (Army STARRS; N = 38,507). Most new soldiers with a pre‐enlistment history of suicide attempt reported a prior mental disorder (59.0%). Each disorder examined was associated with increased odds of suicidal behavior (ORs = 2.6–8.6). Only PTSD and disorders characterized by irritability and impulsive/aggressive behavior (i.e., bipolar disorder, conduct disorder, oppositional defiant disorder, and attention‐deficit/hyperactivity disorder) predicted unplanned attempts among ideators. Mental disorders are important predictors of pre‐enlistment suicidal behavior among new soldiers and should figure prominently in suicide screening and prevention efforts.     

错失恐惧对大学生社交网络成瘾的影响:社交网络整合性使用与社交网络支持的中介作用

错失恐惧是社交网络成瘾的风险因素，但其中的作用机制并不清楚。本研究采用错失恐惧问卷、社交网络整合性使用量表、社交网络支持量表和中文社交网络成瘾量表，调查了重庆市三所高校的493名大一至大三的学生，探讨错失恐惧影响社交网络成瘾的机制。结果发现：（1）错失恐惧显著预测社交网络成瘾，错失恐惧水平越高，个体社交网络成瘾水平越高。（2）社交网络整合性使用在错失恐惧和社交网络成瘾之间起独立中介作用。（3）社交网络支持在错失恐惧和社交网络成瘾之间起独立中介作用。（4）社交网络整合性使用和社交网络支持在错失恐惧和社交网络成瘾之间起链式中介作用。研究结果表明，满足大学生基本心理需要、降低社交网络使用程度、提升现实社会支持可以有效预防社交网络成瘾。