Heart Rate Variability and Sustained Attention in ADHD Children

The major goal of the current study was to investigate the association between continuous performance tests (CPTs) and the heart rate variability (HRV) of attention deficit hyperactivity disorder (ADHD) children. The HRV, specifically the 0.10-Hz component, may be considered to be a psychophysiological index of effort allocation (motivation): The less effort the subject allocates, the greater the 0.10-Hz component. Results indicated that, compared to controls, ADHD subjects had a greater 0.10-Hz component, which was associated with poor test performance over time. Thus, using a psychophysiological measure, we were able to confirm the clinical concept of ADHD from a motivational perspective.     

The Development of Selective Attention in Children With Attention Deficit Hyperactivity Disorder

The influence of age on a selective attention task was studied in a sample of children with and without Attention Deficit Hyperactivity Disorder (ADHD). The impact of methylphenidate (MPH) treatment on selective attention was also investigated in the children with ADHD. Two age groups of children with ADHD and two age groups of control children were tested using a timed computer task. The task consisted of identifying visual target stimuli under various distracter conditions. Distracters varied on the basis of modality (i.e., visual, auditory, or both) and task relevance (i.e., meaningful or irrelevant). Reaction times and accuracy were measured. Children with ADHD were less efficient on the selective attention task than were children without ADHD, and older children were more efficient than younger children in both groups. Children without ADHD were influenced more by the nature of distracters than were children with ADHD. For children with ADHD, MPH improved performance overall.     

Task Switching and Attention Deficit Hyperactivity Disorder

The main goal of the present set of studies was to examine the efficiency of executive control processes and, more specifically, the control processes involved in task set inhibition and preparation to perform a new task in attention deficit hyperactivity disorder (ADHD) and non-ADHD children. This was accomplished by having ADHD children, both on and off medication, and non-ADHD children perform the task-switching paradigm, which involves the performance of two simple tasks. In nonswitch trials, an individual task is performed repeatedly for a number of trials. In switch trials, subjects must rapidly and accurately switch from one task to the other, either in a predictable or unpredictable sequence. Switch costs are calculated by subtracting performance on the nonswitch trials from performance on the switch trials. These costs are assumed to reflect the executive control processes required for the coordination of multiple tasks. ADHD children showed substantially larger switch costs than non-ADHD children. However, when on medication, the ADHD children's switch performance was equivalent to control children. In addition, medication was observed to improve the ADHD children's ability to inhibit inappropriate responses. These data are discussed in terms of models of ADHD and cognition.     

7～11岁儿童持续注意能力的性别差异研究

本研究采用颜色、图形和数字信号监测的三种警觉任务形式 ,来探索7～ 1 1岁儿童持续注意能力的性别差异。结果发现 ,男女儿童持续注意随时间的变化趋势一致 ;7岁男性儿童的持续注意能力优于女性儿童 ,而 9岁和 1 1岁男女儿童的持续注意能力各有自己的风格 ,男性儿童反应快而正确率低 ,女性儿童反应慢而正确率高。     

启发式在警觉任务中的交叉复合作用

通过对个体和团队和警觉任务的阶段性研究,本研究发现了启发式对个体警觉任务的交叉复合作用,个体在警觉任务关键信号出现时绩效不一定下降。关键信号出现时成绩的升降取决于关键信号与背景信号的可取性。另外,团队结构克服了个体决策中出现的信息不全和信息加工资源不足的缺陷,使警觉任务在关键事件发生时、发生前和发生后的成绩波动不大。     

联合注意:早期发展的里程碑

联合注意作为早期的社会认知能力,对语言、社会认知等能力的发展有很大的影响。文章综述了联合注意出现的先兆、联合注意的行为、联合注意的形式与功能,并阐述了其在发展中的重要作用。最后文章讨论了当前研究中存在的问题并指出联合注意新的研究方向。     

Attention,Response Inhibition,and Face-Information Processing in Children: The Role of Task Characteristics,Age, and Gender

The aim of the study was to assess: (a) developmental changes in attention, response inhibition, and face-information processing using the new Balloons task and (b) to evaluate the association between measures derived from the task with reported behavior problems. One hundred and thirty-four typically developing children (53 boys and 81 girls) were tested with the Balloons. Their parents and teachers completed the Child Behavior Checklist. Our results validate the Balloons as a reliable task with significant effects of manipulations in difficulty level (speed, processing load, and processing type). The results suggest that face-information processing undergoes significant changes during the age period between 7 and 13 years with significant gender differences. Modest but significant correlations were found between the Balloons' measures and behavior problems.     

The Relation Between Self-Report Mindfulness and Performance on Tasks of Sustained Attention

Validation of self-report mindfulness measures has been promising, although comparisons with non-self-report instruments are lacking. Because past research suggests that mindfulness training is associated with improved attention, this study predicted that higher self-report mindfulness would be positively related to performance on tasks of sustained attention. Fifty undergraduates completed the Mindful Attention Awareness Scale (MAAS), the Kentucky Inventory of Mindfulness Skills (KIMS), the Cognitive and Affective Mindfulness Scale, Revised (CAMS-R), and performed the Continuous Performance Test II (CPT-II) and the Paced Auditory Serial Addition Test (PASAT). Mindfulness scores, as measured by the MAAS and CAMS-R, were negatively related to target omissions on the CPT-II (ps ≤ 0.001), but were not related to PASAT performance (ps ≥ 0.11). Scores on the KIMS were not related to the CPT-II or PASAT (ps ≥ 0.15). Results suggest that self-report mindfulness is related to exaggerated lapses of attention, as measured by the CPT-II.     

The Development of Aggression in 18 to 48 Month Old Children of Alcoholic Parents

This study examined the development of aggressive and oppositional behavior among alcoholic and nonalcoholic families using latent growth modeling. The sample consisted of 226 families assessed at 18, 24, 36, and 48 months of child age. Results indicated that children in families with nonalcoholic parents had the lowest levels of aggressive behavior at all time points compared to children with one or more alcoholic parents. Children in families with two alcoholic parents did not exhibit normative decreases in aggressive behavior from 3 to 4 years of age compared to nonalcoholic families. However, this association was no longer significant once a cumulative family risk score was added to the model. Children in families with high cumulative risk scores, reflective of high parental depression, antisocial behavior, negative affect during play, difficult child temperament, marital conflict, fathers’ education, and hours spent in child care, had higher levels of aggression at 18 months than children in low risk families. These associations were moderated by child gender. Boys had higher levels of aggressive behavior at all ages than girls, regardless of group status. Cumulative risk was predictive of higher levels of initial aggressive behavior in both girls and boys. However, boys with two alcoholic parents had significantly less of a decline in aggression from 36 to 48 months compared to boys in the nonalcoholic group.     

Assessment of Attention in Children with Attention Deficit Hyperactivity Problems in Primary Care Settings

Clinical child psychologists in primary care settings are often asked to evaluate children with suspected attention and learning problems. This paper will review some of the methods and assessments available to child psychologists to enable them to perform this task. Some problems with current practice will be described and some of the newer techniques will be introduced. A research-based understanding of areas of chronic impairment of children with Attention Deficit Hyperactivity Disorder (ADHD) will be discussed, and a new approach to the assessment of both executive functions and attention will be explored. This paper will primarily explore assessment in the primary care setting.     

ERP components activated by the "GO!" and "WITHHOLD!" conflict in the random Sustained Attention to Response Task

The present study investigates the event related potential (ERP) components associated with the random version of the Sustained Attention to Response Task (SART). The random SART is a Go/No-Go task in which the No-Go target appears unpredictably and rarely. In the present experiment, the EEG was recorded from 58 electrodes with mastoids as reference. As expected, the N2 and P3 were larger in the No-Go trials compared to the Go trials, with the P3 more frontal for the No-Go trials compared to the Go trials. The functional role of the N2 and P3 in the No-Go trials is discussed comparing our results to the fixed SART results obtained by Dockree et al. [Dockree P. M., Kelly S. P., Robertson I. H., Reilly R. B., & Foxe J. J. (2005). Neurophysiological markers of alert responding during goal-directed behaviour: A high-density electrical mapping study. NeuroImage, 27, 587-601]. In addition, the lateralized readiness potential (LRP) was computed. The absence of an LRP in the No-Go trials suggests that a central inhibitory mechanism intervenes to prevent the preparation and execution of a dominant motor response.     

注意缺陷多动障碍儿童的表征搜索

为探索ADHD儿童在时间维度上的视觉选择性注意的基本机制,揭示其表征搜索能力是否存在缺陷,研究采用RSVP范式,通过实验材料(字母和数字)和呈现方式操作两种搜索方式:序列搜索和平行搜索,比较ADHD儿童(18名)和控制组儿童(17名)的成绩差异。结果发现:①在平行搜索和序列搜索条件下,ADHD儿童的成绩均低于正常控制组;②比较平行搜索和序列搜索条件下的成绩变化,以及由低难度到高难度上成绩的变化,无论是正确率还是反应时均发现ADHD儿童和正常儿童具有相同的成绩变化模式。结论认为ADHD儿童在视觉选择性注意的基本搜索机制上并不存在明显缺陷。     

The Impact of Spatial Cues on Preschoolers' Selective Attention

The effects of spatial arrangement on preschool children's ability to selectively attend were investigated. Three- and 4-year old children were shown a multicolored dollhouse room intended to serve as a special place containing miniature chairs and models of animals. One category of objects was designated as relevant and 1 as irrelevant. Relevant items were placed in each of the apparatus's corners or in the middle of its walls. Children in the corners condition correctly relocated more relevant items than children in the wall or control conditions. The findings suggest that for both age groups, the ability to recall relevant items may be independent of their ability to demonstrate a selective attention strategy.     

视觉刺激探测的警觉性注意特征初探

采用"预警提示-目标探测"范式,对视觉刺激探测的警觉性注意特征进行初步探索。实验一表明,随着预备到目标刺激的时间间隔(interstimulus interval,ISI)变化,固定位置上探测目标刺激的速度也随之变化,并且对大概率刺激的探测更快,表现出了警觉性注意的稳定性和选择性特征。实验二进一步考察了目标刺激在不同ISI和不同空间位置的情况,除发现与实验一相似的结果以外,被试探测目标刺激的速度随注意视角增大而下降,表现出了警觉性注意的集中性特征。     

Evidence of Poor Planning in Children with Attention Deficits

This study examined the planning performance of children with attention deficits, and also investigated the possible interactions between inattention and anxiety in the performance of executive function tasks. A group of 98 children (grades 4 and 6), derived from an initial group of 550, were assigned to an attention difficulties group (AD) and a control group (n = 49 each) based on their scores on a variety of cognitive attention measures and teacher scales of attention and hyperactivity. The two groups were matched on age, gender, parental education, non-verbal and verbal ability. They were compared on Crack-the-Code (C-t-C) action-planning task, embedded and ambiguous figures and Theory of Mind tasks. Analyses indicated that the failure of AD children on cognitive performance measures is linked to planning impairments. The co-occurrence of anxiety, in turn, did not interact with inattention to affect planning performance differentially. Implications of these findings for the current discussion about the cognitive and emotional processes underlying impaired performance among children with attention deficits on executive control tasks are discussed.     

Interaction Between the Development of Postural Control and the Executive Function of Attention

The authors examined the interaction between the development of postural control and the development of the executive function of attention in 13 children and 6 adults in dual-task conditions. Participants performed an attentionally demanding cognitive task and a postural task simultaneously. The authors equalized the attentional load of the cognitive task across age groups. Comparative changes in the center of pressure in dual- and single-task conditions indicated that dual tasks interfered with postural performance in the wide stance (WS) and the modified Romberg stance (RS). Children at 4-6 years of age (but not children at ages 7-12 years of age or adults) experienced postural control interference in both stance positions, but interference was greater in the RS (p = .018). For all participants, cognitive task performance in RS was unchanged from that in WS. The knowledge gained from the results of this study will contribute to the design and implementation of academic and preacademic programming for young children. Their performance of an intentionally demanding cognitive task would be enhanced by the provision of appropriately sized desks and chairs or their use of an alternate, less demanding position.     

The Voices of Therapists and Children Regarding the Inclusion of Children in Family Therapy: A Systematic Research Synthesis

In 1970, Nathan Ackerman challenged the field of marriage and family therapy to actively involve young children in the family therapy process. How has the field of marriage and family therapy responded to his challenge? Using a systematic research synthesis to review and critique the non-empirical and empirical literature in the area of children in family therapy, the author discovered that the field of marriage and family therapy has not responded to Ackerman's challenge in the way he may have hoped for nearly three decades ago. A summary of the literature's findings is provided and recommendations for future research, as well as implications, for the field of marriage and family therapy are discussed.     

注意在随意编码自我参照效应中的作用

该研究采用随意编码的研究范式验证随意编码条件下自我参照效应产生的原因是否是自我积极偏差以及由自我积极偏差引起的注意。设计了2（参照条件：自我与他人）×2（形容词效价：积极与消极）的三个实验,分别是实验一效价与参照条件都是组内变量;实验二效价是组内变量,参照条件是组间变量;实验三效价是组间变量,参照条件是组内变量,三个实验结果均发现：自我参照条件下人格特质形容词的再认率显著高于他人参照条件;消极效价词的再认回忆率显著高于积极效价词;参照条件与形容词效价之间的交互作用不显著。结果说明,自我参照效应的发生不依赖于与他人参照条件的比较而产生;消极效应也不依赖于积极效价词的存在而发生;注意可能是随意编码条件下自我参照效应产生的原因。     

The Impact of Tutoring on Early Reading Achievement for Children With and Without Attention Problems

This study examined whether the benefits of reading tutoring in first grade were moderated by children's level of attention problems. Participants were 581 children from the intervention and control samples of Fast Track, a longitudinal multisite investigation of the development and prevention of conduct problems. Standardized reading achievement measures were administered after kindergarten and 1st grade, and teacher ratings of attention problems were obtained during 1st grade. During 1st grade, intervention participants received three 30-min tutoring sessions per week to promote the development of initial reading skills. Results replicated prior findings that attention problems predict reduced 1st grade reading achievement, even after controlling for IQ and earlier reading ability. Intervention was associated with modest reading achievement benefits for inattentive children without early reading difficulties, and substantial benefits for children with early reading difficulties who were not inattentive. It had no discernible impact, however, for children who were both inattentive and poor early readers. Results underscore the need to develop effective academic interventions for inattentive children, particularly for those with co-occurring reading difficulties.     

Effects of Test Order and Modality on Sustained Attention in Children With Epilepsy

Neurological conditions affect sustained attention, but the effects of modality and interactions with test order have not been examined. In a 2?×?2 (Order?×?Modality) design using 54 children with chronic epilepsy, performance was compared on an auditory measure (modified Seashore Rhythm Test) versus a visual measure of attention (modified Conners’ Continuous Performance Test). Auditory scores were worse than visual, F(1,?52)?=?98.93, p<.001, but there was no order effect or interaction (p>.05). Implications for assessment and intervention are discussed.