Inhibitory response capacities of bilateral lower and upper extremities in children with developmental coordination disorder in endogenous and exogenous orienting modes

This study was designed to investigate separately the inhibitory response capacity and the lateralization effect in children with developmental coordination disorder (DCD) in the endogenous and exogenous modes of orienting attention. Children with DCD on the lower extremities (DCD-LEs), along with age-matched controls, completed four tasks that involved various applications of asynchronous stimuli to the feet or hands at various intervals. The results demonstrated that children with DCD-LEs had a significantly longer reaction time than the controls for all tasks, and were not alert to the appearance of the target. However, they displayed a deficit in volitional shifts of attention (endogenous mode), but not in automatic dislocation of attention (exogenous mode), whenever they performed the tasks with either their lower or their upper-limbs-even 6 months after the initial study. These findings confirm the deficit in the inhibitory response capacity in terms of volitional movement of attention by children with DCD. Additionally, the negative effect of lateralization on the bilateral extremities was not present in children with DCD-LEs. Significantly differences in response ability were detected only between the dominant and non-dominant sides of upper-limbs, but not between the lower-limbs, suggesting a future avenue for further experimentation on bilateral extremities.     

Mechanisms of deficit of visuospatial attention shift in children with developmental coordination disorder: A neurophysiological measure of the endogenous Posner paradigm

The purpose of this study was to investigate and compare the mechanisms of brain activity, as revealed by a combination of the visuospatial attention shifting paradigm and event-related potentials (ERP) in children with developmental coordination disorder (DCD) and typically developing children. Twenty-eight DCD children and 26 typically developing children were recorded with regard to their behavioral performance and ERP measures during a variant of the endogenous Posner paradigm, in which they should react to visual targets preceded by spatial cues or presented uncued. Children with DCD showed longer reaction time and a deficit in inhibitory response capacity when compared to typically developing children. The electrophysiological characteristics also showed distinct modulatory effects upon attentional orienting, anticipatory mechanisms, and cognitive-to-motor transfer in children with DCD: longer cue-P3 and target-N1 latency, smaller target-P3 amplitude, an elongated interval between N2 and the motor response (N2-RT), and small areas on contingent negative variation (CNV). The combined analysis of behavioral performance and ERP data suggested that children with DCD had deficits of slower target identification (N1), less ability in interhemispheric (P3) and cognitive-to-motor transfer speed (N2-RT), as well as a less mature anticipatory and executive process (CNV).     

Validation of the Gratitude Questionnaire (GQ) in Taiwanese Undergraduate Students

The aim of this study was to translate and validate the Gratitude Questionnaire (GQ; McCullough et al. 2002) using Taiwanese undergraduate students. A total of 608 college students (M _age = 20.19, SD = 2.08) were recruited for the current study and they completed the GQ, optimism, happiness, and big five personality questionnaires. Confirmation factor analysis indicated that a five item model was a better fit than the original six item model. Cross-validation also supported the modified Chinese version of the GQ. In addition, the Chinese version of the GQ was, as expected, positively correlated with optimism, happiness, agreeableness, and extraversion, which supported its construct validity. The Cronbach’s α was .80 for the Chinese version of the GQ, indicating satisfactory validity and reliability in a Taiwanese student sample. It was concluded that the Chinese version of the GQ would be useful for assessing individual differences in dispositional gratitude.     

Ideal Affect: Cultural Causes and Behavioral Consequences

ABSTRACT— Most research focuses on actual affect , or the affective states that people actually feel. In this article, I demonstrate the importance and utility of studying ideal affect , or the affective states that people ideally want to feel. First, I define ideal affect and describe the cultural causes and behavioral consequences of ideal affect. To illustrate these points, I compare American and East Asian cultures, which differ in their valuation of high-arousal positive affective states (e.g., excitement, enthusiasm) and low-arousal positive affective states (e.g., calm, peacefulness). I then introduce affect valuation theory, which integrates ideal affect with current models of affect and emotion and, in doing so, provides a new framework for understanding how cultural and temperamental factors may shape affect and behavior.     

The Joint Moderating Effects of Activated Negative Moods and Group Voice Climate on the Relationship between Power Distance Orientation and Employee Voice Behavior

Employees inherently have concerns about the consequences of speaking up, and this is particularly notable for employees with high power distance orientation (PDO). Drawing on ideas from the dual‐pathway model of mood and social information processing theory, we propose that activated negative mood and group voice climate can synergistically facilitate high‐PDO employees' voice behaviors. Using a sample from 305 real‐estate sales agents in 66 work groups in Taiwan, we examined the joint moderating effects of activated negative mood and group voice climate on employees' two forms of voice behavior. Our results show that PDO had a negative relationship with promotive voice but did not have a significant relationship with prohibitive voice. Nevertheless, our results show that in the situation where both activated negative mood and group voice climate were high, PDO no longer had a negative relationship with promotive voice, and even had a positive relationship with prohibitive voice. The findings of this study provide theoretical insights for the voice literature and offer practical suggestions for facilitating opinion expression in organisations.     

Presence and television.

Film and a number of emerging entertainment technologies offer media consumers an illusion of nonmediation known as presence. To investigate the possibility that television can evoke presence, 65 undergraduate students were shown brief examples of rapid point‐of‐view movement from commercially available videotapes on a television with either a small screen (12 inches [30.5 cm], measured diagonally) or a large screen (46 inches [116.8 cm]). Participants' responses were measured via a questionnaire and a computer‐based recording of arousal (electrodermal activity). Viewers of both televisions reported an enjoyable sense of physical movement, excitement, involvement, and a sense of participation. Furthermore, as predicted, participants who watched the large screen television thought the movement in the scenes was faster, experienced a greater sense of physical movement, enjoyed the movement to a greater extent, found the viewing experience more exciting, and were more physiologically aroused. Practical and theoretical implications are discussed.     

Influence of Accelerometer Placement and/or Heart Rate on Energy Expenditure Prediction during Uphill Exercise

Studies using a triaxial accelerometer and heart rate (HR) simultaneously for estimating energy expenditure (EE) during uphill exercise are rare. Exploring the optimal location for placing the accelerometer for predicting EE during uphill exercise is essential. Sixteen healthy male participants (M ± SEM; age 25.00 ± 0.61 years; body weight 74.13 ± 2.51 kg; body height 1.74 ± 0.01 m; body mass index 24.30 ± 0.63 kg/m²) exercised on a treadmill under 12 conditions (4 speeds and 3 gradients) on 3 days. Triaxial accelerometers, an HR recorder, and a metabolic measurement system were simultaneously used. Accelerometer outputs from various anatomical locations (upper arm, chest, lower back, waist, thigh, and instep) showed significant positive correlations with EE (0.819, 0.846, 0.816, 0.820, 0.672, and 0.669, respectively; p < .05). The linear regression equation for changes in HR showed the highest coefficient of determination (r²) of .837 with 87.9% reliability. When the HR signal was included, the r² value (> .842) and reliability (87.9%) between the accelerometer outputs and EE improved. Accelerometer outputs from the waist position alone provide highly accurate EE values. Using both accelerometer outputs and HR for EE estimation during uphill exercise is feasible and improves the accuracy of EE prediction.     

Nanomaterials in Cosmetic Products: the Challenges with regard to Current Legal Frameworks and Consumer Exposure

Nanotechnology-enabled cosmetic products (NCPs) have been accessible in the market for the last 30 years. More than 250 products have been commercialized in the global market potentially exposing two billion people. These products are present in all formulations including creams, powders, lotions, and sprays. These involve contact with all body especially skin and mucosae; other tissues like airways and gastrointestinal tract can be reached by accidental exposure. Due to the size, NCPs exhibit an increased surface area volume ratio and biodistribution that potentially augments their reactivity compared with bulk materials, which raises concerns for consumer’s safety. Consumers are attracted by the novel properties and functions of nano-enabled products but expose to technologies where no legal frameworks have been implemented to prevent potential side effects. Here, we review the current gaps between the commercialization process of NCPs and the regulatory frameworks to assess these products in USA, Europe, Japan, and Latin America prior and after commercialization. We identify the requirements for a proper assessment of the potential hazard of nanomaterials (NMs) in cosmetics considering the nanomaterial properties.