Sensory Processing Differences in Children Diagnosed With Tourette's Disorder

The objectives of this research were to determine whether sensory processing differences existed in children between the ages of 5 and 10 years diagnosed with Tourette's disorder and to examine whether further differences existed if these children had an additional diagnosis of Attention Deficit Hyperactivity Disorder. The Short Sensory Profile was completed by caregivers for 75 children with Tourette's disorder, 47 who were also diagnosed with Attention Deficit Hyperactivity Disorder. Differences in sensory processing were identified in the total sample. More significant differences were found in the group of children with dual diagnoses, especially in the area of auditory processing.     

偏题言语及其老化机制

在日常生活中,相比年轻人,老年人的话语总是更容易偏离当前话题,而且内容比较冗余,这种现象就是偏题言语的老化。语用改变假设认为是老年人沟通目标的改变导致其偏题言语的增多,该理论能够一定程度地解释在自传式话题上的偏题现象,但很难解释在不涉及沟通目标改变的任务上出现的偏题言语。抑制缺陷理论则认为老年人的偏题言语与其在抑制无关信息能力上的缺陷密切相关,该理论虽然可以解释在一般话题上出现的偏题言语,但没有将抑制在偏题言语老化现象上的作用机制阐释得很清楚。未来研究应着重探讨偏题言语的具体老化机制,以期为改善老年期的偏题言语现象提供更有效的措施。     

亲社会视频游戏对玩家人性化知觉水平的影响

为了探讨亲社会视频游戏对玩家人性化知觉的影响, 研究以大学生为被试, 通过两个实验, 分别采用自陈报告法和单类别内隐联想测验技术考察了亲社会视频游戏对玩家自我及他人外显及内隐人性化知觉的影响。结果发现:(1)相对于中性游戏, 不论是普遍人性, 还是独特人性, 亲社会视频游戏均可提高玩家对自我及他人外显的人性化知觉水平;(2)相对于中性游戏, 亲社会游戏可显著提高玩家对自我及他人独特人性的内隐知觉水平, 也可提升对自我普遍人性的内隐知觉水平, 但对他人普遍人性的内隐知觉的效应不明确。这些结果表明, 亲社会视频游戏对于提升玩家对自我和他人的人性化知觉水平具有重要作用。     

Motor knowledge is one dimension for concept organization: Further evidence from a Chinese semantic dementia case

Neuropsychological and neuroimaging studies have indicated that motor knowledge is one potential dimension along which concepts are organized. Here we present further direct evidence for the effects of motor knowledge in accounting for categorical patterns across object domains (living vs. nonliving) and grammatical domains (nouns vs. verbs), as well as the integrity of other modality-specific knowledge (e.g., visual). We present a Chinese case, XRK, who suffered from semantic dementia with left temporal lobe atrophy. In naming and comprehension tasks, he performed better at nonliving items than at living items, and better at verbs than at nouns. Critically, multiple regression method revealed that these two categorical effects could be both accounted for by the charade rating, a continuous measurement of the significance of motor knowledge for a concept or a semantic feature. Furthermore, charade rating also predicted his performances on the generation frequency of semantic features of various modalities. These findings consolidate the significance of motor knowledge in conceptual organization and further highlights the interactions between different types of semantic knowledge.     

Effects of Sensory Deficit on Phalanx Force Deviation During Power Grip Post Stroke

The effect of sensory deficits on power grip force from individual phalanges was examined. The authors found that stroke survivors with sensory deficits (determined by the Semmes-Weinstein monofilament test) gripped with phalanx force directed more tangential to the object surface, than those without, although both groups had similar motor deficits (Chedoke-McMaster and Fugl-Meyer), grip strength, and skin friction. Altered grip force direction elevates risk of finger slippage against the object thus grip loss/object dropping, hindering activities of daily living. Altered grip force direction was associated with altered muscle activation patterns. In summary, the motor impairment level alone may not describe hand motor control in detail. Information about sensory deficits helps elucidate patients' hand motor control with functional relevance.     

Rage and hatred in infants: conditions which facilitate development versus those which result in tragic delays or alarming distortions

The paper traces some possible trajectories of aggressive behaviour in children and adolescents. It distinguishes three contributing factors: 1. Disturbance or Disorder; 2. Deficit and Neglect; and 3. Deviance. Therapeutic technique may need adjusting depending on which factor is dominant at any moment. Two dimensions which seem to run through these categories are first, the question of which type of violence is occurring - that is, the motivation and emotion which accompany the violence; the second question is whose violence: that is, when we study the inner world of aggressive children we discover vast differences in the relationships between the self and the internal objects or representational figures of other people. These two questions will be raised whenever we try to treat these children or adolescents.     

Development of motor imagery and anticipatory action planning in children with developmental coordination disorder – A longitudinal approach

Children with impaired motor coordination (or Development Coordination Disorder – DCD) have difficulty with the predictive control of movements, evidenced by cross-sectional studies that show impaired motor imagery and action planning abilities. What remains unclear is whether this deficit in predictive control reflects immaturity of the motor system (a developmental delay) or some deviation from normal development (a disorder). To advance this discussion the present study used a longitudinal design to examine the development of motor imagery and action planning in children with DCD. Thirty children were included in the DCD group (aged 6–11 years) and age- and gender-matched to 30 controls. The DCD group had a mABC-2 score ≤ 16th percentile, the control group > 20th percentile. Motor imagery was assessed with the hand rotation task, action planning with a test for end-state comfort. Children participated in three measurements, with one year in between measurements. Results showed that children with DCD were slower and less accurate than their typically developing peers in all subsequent years but were able to improve their motor imagery ability over time. Furthermore, children with DCD showed less planning for ESC at the start of the present study, but were able to catch up with their peers during two-year follow up. These results exemplify that improvement of motor imagery and action planning ability is possible in DCD, and they lend theoretical support to the use of new training techniques that focus on training motor imagery to improve motor skills in children with DCD.     

Effects of video modeling on treatment integrity of behavioral interventions

We examined the effects of individualized video modeling on the accurate implementation of behavioral interventions using a multiple baseline design across 3 teachers. During video modeling, treatment integrity improved above baseline levels; however, teacher performance remained variable. The addition of verbal performance feedback increased treatment integrity to 100% for all participants, and performance was maintained 1 week later. Teachers found video modeling to be more socially acceptable with performance feedback than alone, but rated both positively.     

Media violence exposure in aggressive and control adolescents: differences in self‐ and parent‐reported exposure to violence on television and in video games

The purpose of present study was to investigate differences in media violence exposure between groups of adolescents with and without Disruptive Behavior Disorders with Aggressive Features, using a case‐controlled design and multimethod assessment. Samples of 27 adolescents aged 13‐17 with Disruptive Behavior Disorder with Aggressive Features and 27 age‐gender‐IQ matched controls completed a semistructured interview about exposure to violence on television and video games; parents completed a corresponding questionnaire measure. Moderate intercorrelations were found between most self‐ and parent‐report television and video game violence exposure measures. Compared to control adolescents, adolescents with Disruptive Behavior Disorder with Aggressive Features had higher aggregate media violence exposure, higher exposure to video game violence, and higher parent‐reported exposure to television violence. Results show that adolescents and parents agree about the adolescent's level of media violence exposure, that exposure to violence on television tends to be accompanied by exposure to violence in video games, and that the association between media violence exposure and Disruptive Behavior Disorder with Aggressive Features is not due to a spurious effect of gender or IQ. Aggr. Behav. 31:000–000, 2005. © 2005 Wiley‐Liss, Inc.     

暴力性电子游戏对青少年攻击行为的影响

暴力性的电子游戏在青少年中的普及率相当高。研究发现,暴力性电子游戏对青少年的攻击行为和情感都有影响,对于那些本身就有暴力倾向的青少年来讲更是如此。而且,这种影响存在着年龄和性别差异。其影响的机制主要有：建立并激活与攻击有关的思维网络：削弱了对攻击行为的抑制;模仿和强化;降低了对受害者的同情心等。