Spatial mislocalization as a consequence of sequential coding of stimuli

In three experiments, we tested whether sequentially coding two visual stimuli can create a spatial misperception of a visual moving stimulus. In Experiment 1, we showed that a spatial misperception, the flash-lag effect, is accompanied by a similar temporal misperception of first perceiving the flash and only then a change of the moving stimulus, when in fact the two events were exactly simultaneous. In Experiment 2, we demonstrated that when the spatial misperception of a flash-lag effect is absent, the temporal misperception is also absent. In Experiment 3, we extended these findings and showed that if the stimulus conditions require coding first a flash and subsequently a nearby moving stimulus, a spatial flash-lag effect is found, with the position of the moving stimulus being misperceived as shifted in the direction of its motion, whereas this spatial misperception is reversed so that the moving stimulus is misperceived as shifted in a direction opposite to its motion when the conditions require coding first the moving stimulus and then the flash. Together, the results demonstrate that sequential coding of two stimuli can lead to a spatial misperception whose direction can be predicted from the order of coding the moving object versus the flash. We propose an attentional sequential-coding explanation for the flash-lag effect and discuss its explanatory power with respect to related illusions (e.g., the Fr?hlich effect) and other explanations.     

Does Happiness Increase in Old Age? Longitudinal Evidence from 20 European Countries

Journal of Happiness Studies - Several studies indicate that happiness follows a U-shape over the life cycle: Happiness decreases after the teenage years until reaching its nadir in middle age. A...     

Examining Anxiety and Depression as Moderators of the Associations Between ADHD Symptoms and Academic and Social Problems in Hispanic Adolescents

The effects of attention-deficit/hyperactivity disorder (ADHD) symptoms on the psychosocial functioning of Hispanic youth have been understudied. It also remains unclear if the well-established associations between ADHD symptoms and academic and social impairment are exacerbated by co-occurring internalizing symptoms. The purposes of the present study were to (1) examine whether ADHD symptoms would be associated with academic and social problems while also controlling for oppositional defiant disorder (ODD) symptoms, and (2) test the hypothesis that anxious and depressive symptoms would moderate the relations between ADHD symptoms and academic and social problems. Participants were 142 at-risk Hispanic adolescents (54 % male, ages 14–19) who reported on their anxious and depressive symptoms, as well as their teachers who reported on adolescents’ ADHD symptoms, ODD symptoms, academic problems, and social problems. When the psychopathology variables were included simultaneously in a path model, ADHD was the only domain significantly positively associated with academic problems. In contrast, ODD and depressive symptoms were the only domains significantly positively associated with social problems when all of the psychopathology variables were included in the path model. No moderation effects were found in relation to academic problems, although a significant ADHD × depression interaction was found in relation to social problems. Specifically, ADHD symptoms were not associated with social problems among adolescents who reported low levels of depressive symptoms, but the association between ADHD symptoms and social problems was significant at higher levels of depression. In addition to targeting oppositionality, attending to the combined presence of ADHD and depressive symptoms will be important for reducing the social impairments among Hispanic adolescents.     

Looking forward to tomorrow: The buffering effect of a daily optimism intervention

This research demonstrates the effectiveness of a brief daily self-applied optimism intervention in an adult normal population. Participants completed Life Orientation Test-Revised, Positive and Negative Affect Scale, Satisfaction with Life Scale, and Burnout Measure scales before, immediately after, and one month after the intervention. At baseline, optimism intervention group (N = 36) and control group (N = 41) were statistically similar on the variables of interest. At post-test, and also one month later, the intervention group demonstrated reduced pessimism, negative affect, and emotional exhaustion, although optimism, positive affect, and life satisfaction did not increase. Higher initial optimism increased the intervention effect for the optimism group, but not for the control group, by diminishing negative affect and emotional exhaustion, and increasing optimism. Sixty-one percent of the activities mentioned by the control group participants focused on duties and work, compared to 28% in the optimism condition. No correlations were found between initial optimism or pessimism, and the type of activities mentioned.     

Transportability of an empirically supported dissonance-based prevention program for eating disorders

This study sought to evaluate the degree to which positive effects remained when a well studied cognitive dissonance eating disorder prevention program was disseminated through a large national sorority under naturalistic conditions. All participants underwent a 2-session program run by peer facilitators. The sample included 182 undergraduate women from a local chapter of a national sorority at a large public university. Analyses revealed that the program significantly reduced body dissatisfaction, thin ideal internalization, dietary restraint, and the use of the media as a source of information about beauty, and restrained eating. Importantly, effect sizes were maintained at 5-months and 1-year follow-up. These findings demonstrate that empirically supported programs can remain effective when disseminated with careful training in large social systems.     

The effectiveness of a gaze cue depends on the facial expression of emotion: Evidence from simultaneous competing cues

The gaze of a fearful face should be a particularly effective cue to attention; it allows one to rapidly allocate attention to potential threats. Prior data from investigations of this issue have been mixed. We report a novel method in which the gazes of two faces simultaneously cued different directions. Across trials, the emotion expressed by each face varied between happy, neutral, and fearful. Results showed that attention followed a fearful gaze when it competed with a neutral gaze but did not consistently follow a happy gaze when it competed with a neutral gaze. These results suggest that fear moderates the effectiveness of gaze cuing, and we present a parsimonious account that reconciles previously inconsistent data. We also found that presenting a fearful and a happy face simultaneously eliminates this effect, suggesting that emotional expressions interact in ways that may be important for understanding how emotional stimuli influence attention in more complex environments.     

Validating the Beck Depression Inventory-II in Indonesia's general population and coronary heart disease patients

This study assesses the validity and determines the cut-off point for the Beck Depression Inventory-II (the BDI-II) among Indonesians. The Indonesian version of the BDI-II (the Indo BDI-II) was administered to 720 healthy individuals from the general population, 215 Coronary Heart Disease (CHD) patients, and 102 depressed patients. Confirmatory factor analysis indicated factorial similarity across the three samples. Significant correlations between the Indo BDI-II and other self-report measures related to depression demonstrated construct validity of the Indo BDI-II. Furthermore, there was a highly significant difference in the Indo BDI-II scores between depressed patients and non-depressed participants. Internal consistency and re-test reliability of the Indo BDI-II were acceptable. The receiver operating characteristic (ROC) curve indicated that the cut-off point of the Indo BDI-II for a mild severity of depression in Indonesian population should be 17. We conclude that the Indo BDI-II is a valid measure of depression, both in the Indonesian general population and in CHD patients.     

Simply shapely: Relative, not absolute shapes are primed in pop-out search

Visual search is typically faster when the target from the previous trial is repeated than when it changes. This priming effect is commonly attributed to a selection bias for the target feature value or against the nontarget feature value that carries over to the next trial. By contrast, according to a relational account, what is primed in visual search is the target–nontarget relationship—namely, the feature that the target has in relation to the features in the nontarget context (e.g., larger, darker, redder)—and switch costs occur only when the target–nontarget relations reverse across trials. Here, the relational account was tested against current feature-based views in three eye movement experiments that used different shape search tasks (e.g., geometrical figures varying in the number of corners). For all tested shapes, reversing the target–nontarget relationships produced switch costs of the same magnitude as directly switching the target and nontarget features across trials (“full-switch”). In particular, changing only the nontargets produced large switch costs, even when the target feature was always repeated across trials. By contrast, no switch costs were observed when both the target and nontarget features changed, such that the coarse target–nontarget relations remained constant across trials. These results support the relational account over feature-based accounts of priming and indicate that a target’s shape can be encoded relative to the shapes in the nontarget context.     

Evaluating a Complex and Uncertain Future

Social systems are emergent complex systems that are prone to uncertainty and change. Complexity and uncertainty increase the difficulty of evaluating for sustainability. However, backcasting from visions of sustainability using indicators that are positively correlated to principles of sustainability allows for congruence and complexity in achieving the vision. This article presents a model of how this can be done using Causal Layered Analysis and the Ecological Framework. Reiterating the evaluation and visioning process allows for indicators to accommodate change while remaining relevant to sustainability principles.     

Influence of electroencephalography neurofeedback training on episodic memory: A randomized,sham-controlled,double-blind study

The relationships between memory processes and oscillatory electroencephalography (EEG) are well established. Neurofeedback training (NFT) may cause participants to better regulate their brain EEG oscillations. The present study is a double-blind sham-controlled design investigating the effect of NFT on memory. NFT included up-training upper alpha (UA) band, up-training sensory-motor rhythm (SMR) band and sham protocol. Thirty healthy adult volunteers were randomly divided into three treatment groups. NFT sessions (30 min each) took place twice weekly for a total of 10 sessions while memory testing took place pre- and post-training. The results indicate dissociation between SMR and UA NFT and different memory processes. While the SMR protocol resulted in improving automatic, item-specific and familiarity-based processes in memory, the UA protocol resulted in improved strategic and controlled recollection. The implications of the results are discussed.