Non-lateralised deficits of drawing production in hemispatial neglect

Spatially lateralised deficits that typically define the hemispatial neglect syndrome have been shown to co-occur with other non-lateralised deficits of attention, memory, and drawing. However even a simple graphic task involves multiple planning components, including the specification of drawing start position and drawing direction. In order to investigate the influence of these factors in neglect we presented patients with a circle-copying task, and specified the drawing start point. The ability to draw from the instructed location was strongly related to tests that measure constructional abilities, but not related to start point laterality. In contrast, the direction in which patients drew the circle was affected by start point laterality: patients with neglect were less likely to draw in a typical direction when the cue was on the affected side of space and this was strongly related to severity of the neglect. Patients with neglect consistently produced circles that were smaller than the model; however, the scaling was not affected by the laterality of the start point, nor was the proportion of drawings correctly started at the cue. These findings demonstrate the complex relationship between neglect and even the simplest test for the syndrome.     

Crossover by Line Length and Spatial Location

It is well known that line length has a systematic influence on line bisection error in neglect. Most patients with neglect misbisect long lines on the same side of true center as their brain lesion but then cross over on short lines, misbisecting them on the opposite side (i.e., crossover by line length). What is less recognized is that the spatial location of lines relative to the viewer can similarly induce a crossover effect when one considers line bisection error scores that have been averaged across individual line lengths. Patients with right hemisphere injury and neglect classically make averaged line bisection errors that fall right of true center on lines located either at midline or to the left of the viewer; however, we observed that the averaged line bisection error can fall left of true center when lines are located to the right of the viewer (i.e., crossover by spatial location). We hypothesized that crossover by both line length and spatial location stem from systematic errors in magnitude estimation, i.e., perceived line length. We tested predictions based on this hypothesis by examining how the crossover effect by line length is altered by the spatial location of lines along a horizontal axis relative to the viewer. Participants included patients with unilateral lesions of the right and left cerebral hemispheres and age-appropriate normal subjects. All groups demonstrated a crossover effect by line length at the midline location but the effect was altered by placing lines to the right and left of the viewer. In particular, patients with right hemisphere injury and neglect crossed-over across a broader range of line lengths when the lines were located to the right of the viewer rather than at either midline or left of the viewer. It is proposed that mental representations of stimulus magnitude are altered in neglect, in addition to mental representations of space, and that traditional accounts of neglect can be enhanced by including the psychophysical concept of magnitude estimation.     

判断与决策中的基线比例忽略

基线比例忽略是指在事件的判断中忽略相关事件统计学上的信息, 而只关注当前呈现的案例信息, 从而造成判断和决策偏差的一种现象。目前对这一现象的解释主要包括双加工理论和线性整合理论, 而影响基线比例忽略的因素有许多方面, 如信息特征、认知能力等等。在未来研究中, 应该深入分析双加工理论的作用机制以及依据模糊痕迹理论提出新的研究视角, 同时拓展在团体和公共领域中的应用性研究。     

‘Her Majesty the Baby’: narcissistic states in babies and young children

This article considers narcissistic states in babies and young children with some reference to the myth of Narcissus in Ovid’s Metamorphosis. The object-seeking character of babies from the beginning of life is elaborated in connection with selected research from mother–baby interaction. This forms the backdrop to a discussion of withdrawal into illusions of self-sufficiency and denial of dependence in adverse circumstances. Two clinical cases are discussed in some depth. One boy whose superiority, self-reliance and pseudo maturity is prompted by anxieties around separation as he approaches starting school is considered within the parameters of ordinary transient narcissism. The lengthy psychotherapy of another child, who developed entrenched narcissistic defences as a response to traumatic, abusive and neglectful experiences in early life, and who needed considerable help, is described in greater detail. Some links are made with difficulties associated with the emergence from narcissistic functioning and encountering the pain of separation and loss.     

Improving left spatial neglect through music scale playing

The study assessed whether the auditory reference provided by a music scale could improve spatial exploration of a standard musical instrument keyboard in right‐brain‐damaged patients with left spatial neglect. As performing music scales involves the production of predictable successive pitches, the expectation of the subsequent note may facilitate patients to explore a larger extension of space in the left affected side, during the production of music scales from right to left. Eleven right‐brain‐damaged stroke patients with left spatial neglect, 12 patients without neglect, and 12 age‐matched healthy participants played descending scales on a music keyboard. In a counterbalanced design, the participants' exploratory performance was assessed while producing scales in three feedback conditions: With congruent sound, no‐sound, or random sound feedback provided by the keyboard. The number of keys played and the timing of key press were recorded. Spatial exploration by patients with left neglect was superior with congruent sound feedback, compared to both Silence and Random sound conditions. Both the congruent and incongruent sound conditions were associated with a greater deceleration in all groups. The frame provided by the music scale improves exploration of the left side of space, contralateral to the right hemisphere, damaged in patients with left neglect. Performing a scale with congruent sounds may trigger at some extent preserved auditory and spatial multisensory representations of successive sounds, thus influencing the time course of space scanning, and ultimately resulting in a more extensive spatial exploration. These findings offer new perspectives also for the rehabilitation of the disorder.     

Social Media and Language Processing: How Facebook and Twitter Provide the Best Frequency Estimates for Studying Word Recognition

Corpus‐based word frequencies are one of the most important predictors in language processing tasks. Frequencies based on conversational corpora (such as movie subtitles) are shown to better capture the variance in lexical decision tasks compared to traditional corpora. In this study, we show that frequencies computed from social media are currently the best frequency‐based estimators of lexical decision reaction times (up to 3.6% increase in explained variance). The results are robust (observed for Twitter‐ and Facebook‐based frequencies on American English and British English datasets) and are still substantial when we control for corpus size.     

Everybody Will Win,and All Must Be Hired: Comparing Additivity Neglect with the Nonselective Superiority Bias

Two streams of research looking at referent‐dependent judgments from slightly different angles are subadditivity research and research on the nonselective superiority bias. Both biases violate basic formal constraints: the probabilities of a set of exclusive events cannot add up to more than 100%, and a set of attractive candidates cannot all be rated as superior to the group mean. We examine in three experiments how these two biases are related, by asking the same participants to perform both kinds of tasks on the same material. Both biases appear to be widespread, even for sets where all alternatives are presented together, but they differ in the way they are affected by response format and experimental setup. Thus, presenting participants with an unbiased set of ratings will reduce but not normalize their probability estimates of the same alternatives; while presenting them with an unbiased (additive) set of probabilities will make most alternatives appear inferior to the group mean, inverting the superiority bias. Self‐reports reveal that additivity neglect and the nonselective superiority bias can be based on two main response‐strategies: (i) considering each alternative independently or (ii) comparing alternatives, while neglecting their complementarity. In both cases, assessments will be the outcome of a compromise between the perceived “absolute” merits of each alternative, its standing relative to referents, and properties of the response scale. Copyright © 2015 John Wiley & Sons, Ltd.     

心理虐待与忽视对青少年攻击行为的影响:道德推脱的中介与调节作用

在一般攻击模型（GAM）和个体-环境交互作用模型的视角下,采用儿童心理虐待与忽视量表、青少年道德推脱问卷和攻击行为问卷对696名青少年进行调查,以探讨心理虐待与忽视对青少年攻击行为的影响以及道德推脱在其中的作用机制。结果发现：（1）心理虐待与忽视与青少年攻击行为和道德推脱均呈显著正相关,道德推脱与青少年攻击行为也呈显著正相关;（2）道德推脱在心理虐待与忽视和青少年攻击行为之间起着部分中介作用,道德推脱的中介作用不存在性别差异,但存在显著的年龄差异,在初中组中,道德推脱在心理虐待与忽视和青少年攻击行为间的中介作用为部分中介,而在高中组中为完全中介;（3）道德推脱在心理虐待与忽视和青少年攻击行为之间的调节作用不显著,道德推脱的调节作用不存在年龄差异,但存在显著的性别差异,在男生组中,道德推脱在心理虐待与忽视和青少年攻击行为间的调节作用不显著,而在女生组中显著。     

Emotional Abuse in Childhood and Attachment Anxiety in Adult Romantic Relationships as Predictors of Personality Disorders

Personality disorders are characterized by interpersonal problems. These problems might arise not only in current, but also in past relationships. To test this hypothesis, recollections of abuse and neglect in childhood and representations of adult attachment to the romantic partner were related to dimensional ratings of the 10 DSM-5 personality disorders. Ultimately, 110 patients of a psychosomatic clinic took part in the study. All data were collected with self-report measures. Among the different types of child abuse and neglect, emotional abuse was shown to be most frequently correlated with personality disorders. Attachment dimensions avoidance and anxiety were both associated with personality disorders; anxiety, however, showed stronger correlations. The results reveal that personality disorders come along with enduring adversities in close relationships, mainly experiences of emotional abuse and attachment anxiety, starting in the family of origin and continuing in adult attachment bonds.     

Subcortical modulation of spatial attention including evidence that the Sprague effect extends to man

The Sprague effect is well-established-small tectal lesions restore visual orientation in the hemianopic field of animals with extensive unilateral geniculo-striate lesions. Studies of human midbrain visual functions are rare. This man with a midbrain tumour developed left-neglect through subsequent right frontal damage. Bilateral orientation returned after clear evidence of damage to the superior colliculus contralateral to the cortical lesion (showing the Sprague effect extends to man). Sustained right-neglect developed after probable additional damage to right superior colliculus. The regulation of spatial attention by tecto-pulvinar circuits is discussed, and it is argued that the reduced right tecto-pulvinar activity (consequent to the additional right collicular damage) was offset by over-compensatory increase in thalamic reticular nucleus (TRN) suppression of left pulvinar activity.