Behavior Problems in Young Children With or At Risk for Developmental Delay

We examined the prevalence of behavior problems and their relationship to child, parent, and family factors in 76 children with or at risk for developmental delay. Parents reported that 42% of the children had behavior problems. Child Behavior Checklist (CBC) scores revealed that 25% of the sample scored above the borderline cutoff. Although the total, externalizing, and internalizing mean CBC scores did not differ from the normative group (same-aged peers without developmental delay), each of the syndrome subscales was significantly higher in the study group. The Reiss Scales for Children's Dual Diagnosis revealed that, as compared to older children (4 years) with developmental delay, the study sample scored significantly lower on the total score and 8 of the 10 subscales. Increased CBC total scores were significantly related to dependency and management of the child, birth weight, gestational length, paternal illness, maternal depression, perceived personal burden of care, maternal escape-avoidance coping strategy, family disharmony, and financial stress. CBC total scores were significantly negatively correlated with being of a multiple birth, paternal education, maternal employment, two-parent family, family social support, and family income. Multiple regression analyses revealed that an empirically-derived combination of child, parent, and family variables accounted for 31% of the variance in CBC total scores. Our findings suggest that 2-year old children with or at-risk for developmental delay may already be showing signs of increased risk of behavior problems relative to peers without developmental delay. We identified several child, parent, and family variables that may help to pinpoint children at increased riskxs for psychopathology.     

Super‐recognisers in Action: Evidence from Face‐matching and Face Memory Tasks

Individuals employed in forensic or security settings are often required to compare faces of ID holders to document photographs, or to recognise the faces of suspects in closed‐circuit television footage. It has long been established that both tasks produce a high error rate amongst typical perceivers. This study sought to determine the performance of individuals with exceptionally good face memory (‘super‐recognisers’) on applied facial identity matching and memory tasks. In experiment 1, super‐recognisers were significantly better than controls when matching target faces to simultaneously presented line‐ups. In experiment 2, super‐recognisers were also better at recognising faces from video footage. These findings suggest that super‐recognisers are more accurate at face matching and face memory tasks than typical perceivers, and they could be valuable expert employees in national security and forensic settings. © 2015 The Authors Applied Cognitive Psychology Published by John Wiley & Sons Ltd.     

The role of voluntary and involuntary attention in selecting perceptual dominance during binocular rivalry

When incompatible images are presented to corresponding regions of each eye, perception alternates between the two monocular views (binocular rivalry). In this study, we have investigated how involuntary (exogenous) and voluntary (endogenous) attention can influence the perceptual dominance of one rival image or the other during contour rivalry. Subjects viewed two orthogonal grating stimuli that were presented to both eyes. Involuntary attention was directed to one of the grating stimuli with a brief change in orientation. After a short period, the cued grating was removed from the image in one eye and the uncued grating was removed from the image in the other eye, generating binocular rivalry. Subjects usually reported dominance of the cued grating during the rivalry period. We found that the influence of the cue declined with the interval between its onset and the onset of binocular rivalry in a manner consistent with the effect of involuntary attention. Finally, we demonstrated that voluntary attention to a grating stimulus could also influence the ongoing changes in perceptual dominance that accompany longer periods of binocular rivalry Voluntary attention did not increase the mean dominance period of the attended grating, but rather decreased the mean dominance period of the non-attended grating. This pattern is analogous to increasing the perceived contrast of the attended grating. These results suggest that the competition during binocular rivalry might be an example of a more general attentional mechanism within the visual system.     

通过发展区域规划建设更加健康的未来

论述有关城市在这个更大范围的地区和全球系统中的位置,以及这些系统对城市和城市居民"健康"的影响.提出倡议:为了建设更健康的未来,城市需要参与并且对其地域生态的发展产生影响,而作为一个全方位的改革的一部分,城市应该将健康和人类的发展作为关注的重点.     

The effects of sex, age, and interval duration on the perception of time

The present experiment examined the interactive effects of sex, age, and interval duration on individual’s time perception accuracy. Participants engaged in the duration production task and subsequently completed questionnaires designed to elicit their temporal attitudes. The overall group of 100 individuals was divided evenly between the sexes. Five groups, each composed of 10 males and 10 females, were divided by decades of age ranging from 20 to 69 years old. The specific time estimation task was an empty interval production procedure composed of 50 trials on each of four different intervals of 1, 3, 7, and 20 s, respectively. The presentation orders of these intervals were randomized across participants but yoked across the sexes within each of the respective age groups. Analysis of the production results indicated significant influences for the sex of the participant while age did not appear to affect estimates of these short durations. Temporal attitudes, as reflected in responses to time questionnaire inquiries, did however exhibit significant differences across age. The contending theoretical accounts of such sex and age differences are considered and explanatory accounts that present a synthesis of endogenous and exogenous causal factors are discussed in light of the present pattern of findings.     

How cognitive load affects duration judgments: A meta-analytic review

A meta-analysis of 117 experiments evaluated the effects of cognitive load on duration judgments. Cognitive load refers to information-processing (attentional or working-memory) demands. Six types of cognitive load were analyzed to resolve ongoing controversies and to test current duration judgment theories. Duration judgments depend on whether or not participants are informed in advance that they are needed: prospective paradigm (informed) versus retrospective paradigm (not informed). With higher cognitive load, the prospective duration judgment ratio (subjective duration to objective duration) decreases but the retrospective ratio increases. Thus, the duration judgment ratio differs depending on the paradigm and the specific type of cognitive load. As assessed by the coefficient of variation, relative variability of prospective, but not retrospective, judgments increases with cognitive load. The prospective findings support models emphasizing attentional resources, especially executive control. The retrospective findings support models emphasizing memory changes. Alternative theories do not fit with the meta-analytic findings and are rejected.     

Cross-modal congruency benefits for combined tactile and visual signaling

This series of experiments tested the assimilation and efficacy of tactile messages that were created based on five common military arm and hand signals. We compared the response times and accuracy rates for these tactile representations against responses to equivalent visual representations of the same messages. Experimentally, such messages were displayed in either tactile or visual forms alone, or using both modalities in combination. There was a performance benefit for concurrent message presentations, which showed superior response times and improved accuracy rates when compared with individual presentations in either modality alone. Such improvement was due largely to a reduction in premotor response time. These improvements occurred equally in military and nonmilitary samples. Potential reasons for this multimodal facilitation are discussed. On a practical level, these results confirm the utility of tactile messaging to augment visual messaging, especially in challenging and stressful environments where visual messaging is not feasible or effective.     

The Thorny Relation Between Measurement Quality and Fit Index Cutoffs in Latent Variable Models

Latent variable modeling is a popular and flexible statistical framework. Concomitant with fitting latent variable models is assessment of how well the theoretical model fits the observed data. Although firm cutoffs for these fit indexes are often cited, recent statistical proofs and simulations have shown that these fit indexes are highly susceptible to measurement quality. For instance, a root mean square error of approximation (RMSEA) value of 0.06 (conventionally thought to indicate good fit) can actually indicate poor fit with poor measurement quality (e.g., standardized factors loadings of around 0.40). Conversely, an RMSEA value of 0.20 (conventionally thought to indicate very poor fit) can indicate acceptable fit with very high measurement quality (standardized factor loadings around 0.90). Despite the wide-ranging effect on applications of latent variable models, the high level of technical detail involved with this phenomenon has curtailed the exposure of these important findings to empirical researchers who are employing these methods. This article briefly reviews these methodological studies in minimal technical detail and provides a demonstration to easily quantify the large influence measurement quality has on fit index values and how greatly the cutoffs would change if they were derived under an alternative level of measurement quality. Recommendations for best practice are also discussed.