Frontolimbic neural circuitry at 6 months predicts individual differences in joint attention at 9 months

Elucidating the neural basis of joint attention in infancy promises to yield important insights into the development of language and social cognition, and directly informs developmental models of autism. We describe a new method for evaluating responding to joint attention performance in infancy that highlights the 9‐ to 10‐month period as a time interval of maximal individual differences. We then demonstrate that fractional anisotropy in the right uncinate fasciculus, a white matter fiber bundle connecting the amygdala to the ventral‐medial prefrontal cortex and anterior temporal pole, measured in 6‐month‐olds predicts individual differences in responding to joint attention at 9 months of age. The white matter microstructure of the right uncinate was not related to receptive language ability at 9 months. These findings suggest that the development of core nonverbal social communication skills in infancy is largely supported by preceding developments within right lateralized frontotemporal brain systems.     

音乐对工作记忆影响及机制的ERP研究

以肖邦音乐为刺激材料,采用数字n-back实验范式来研究肖邦音乐对工作记忆的影响方式,并通过运用事件相关电位技术(ERP技术),研究不同音乐条件下,正常人大脑皮层的脑电活动情况,进而探讨音乐对工作记忆影响的神经机制。30名被试参加了3种音乐条件(无音乐、先导音乐、背景音乐)下的n-back(n=1、2)工作记忆任务的行为实验,收集行为数据;14名被试参加了同样实验过程的ERP实验,记录脑电数据。行为结果发现音乐条件对工作记忆效果有显著影响,且先导音乐条件下记忆效果最好;脑电结果显示P3波幅随记忆负荷的增加呈下降趋势,高记忆负荷水平下,P3波幅随先导音乐、背景音乐、无音乐的顺序逐渐呈现下降趋势;源定位分析发现音乐对工作记忆的促进作用可能跟大脑顶叶被激活有关。     

Spatial interference between attended items engenders serial visual processing

A pair of experiments investigated the architecture of visual processing, parallel versus serial, across high and low levels of spatial interference in a divided attention task. Subjects made speeded judgments that required them to attend to a pair of color-cued objects among gray filler items, with the spatial proximity between the attended items varied to manipulate the strength of interference between attended items. Systems factorial analysis (Townsend & Nozawa, Journal of Mathematical Psychology 39:321-359, 1995) was used to identify processing architecture. Experiment 1, using moderately dense displays, found evidence of parallel processing whether attended objects were in low or high proximity to one another. Experiment 2, using higher-density displays, found evidence of parallel selection when attended stimuli were widely separated but serial processing when they were in high proximity. Divided visual attention can operate in parallel under conditions of low or moderate spatial interference between selected items, but strong interference engenders serial processing.     

Separation‐Individuation,Adult Attachment Style,and College Adjustment

The authors examined the relationship between separation‐individuation, adult attachment styles, and college adjustment. One hundred fifty‐six young adults completed the Psychological Separation Inventory (J. A. Hoffman, 1984; J. A. Hoffman & B. Weiss, 1987), 2 subscales from the Student Adaptation to College Questionnaire (R. W. Baker & B. Siryk, 1989), a measure of pathology of separation‐individuation (R. M. Christenson & W. P. Wilson, 1985), and assessments of adult attachment style (K. Bartholomew & L. Horowitz, 1991). College adjustment was positively associated with secure adult attachment and counterindicated by fearful and preoccupied attachments. Implications for counseling practice and directions for future research are discussed.     

公共行政伦理价值定位与规范体系

加强公共行政伦理建设,是加强政风建设、建设廉洁勤政务实高故政府、建设高素质公务员队伍的基本途径。因此,必须对公共行政伦理进行价值定位,借鉴国外公共行政伦理建设的经验,建构中国当代公共行政伦理的规范体系。     

Temporal Contiguity and Contingency Judgments: A Pavlovian Analogue

The two experiments reported examine the role of temporal contiguity on judgments of contingency in a human analogue of the Pavlovian task. The data show that the effect of the actual delay on contingency judgment depends on the observer's expectation regarding the delay. For a fixed contingency between the cue and the outcome, ratings of the contingency are higher when the actual delay is congruent with the observer's expectation than when it is incongruent. We argue that our data can be understood within the context of the temporal coding hypothesis.     

Personality Disorder Attributes as Supplemental Goals for Change in Interpersonal Psychotherapy

Interpersonal Psychotherapy (IPT) is a manualized, short-term (usually 12–16 sessions) based on the assumption that psychological disorders often emerge secondary to social and interpersonal problems that require active intervention to achieve symptom remission. The time-limited nature of IPT compels therapists to establish the goal of diminishing, on a weekly basis, a small number of focused interpersonal problems with a decided emphasis on proximal rather than historic conflicts and associated patterns of behavior. This strategy discourages the adoption of diffuse therapy goals and directions that have more opportunity to emerge in long-term, unstructured treatment modalities. The role of traditional personality testing in short-term therapy, when it occurs, is to identify and quantify symptom clusters that warrant attention as dependent measures in the treatment process. The role of personality factors in the genesis or maintenance of psychological disturbance is rarely addressed. The present article explores theoretical and pragmatic objections to the use of personality testing in IPT. A method is proposed for the limited but systematic incorporation of personality testing in the IPT treatment process using the Millon Clinical Multiaxial Inventory (MCMI-III). While unreasonable to expect personality transformation through short-term therapy, the partial attenuation of maladaptive behavioral, attitudinal, and emotional reactions to stressors could prove exceedingly helpful to short-term treatments such as IPT.