Predictive validity of automatic self-associations for the onset of anxiety disorders

Negative self-cognitions are assumed to play an important role in the onset of anxiety disorders. Current dual-process models emphasize the relevance of differentiating between more automatic and more deliberate self-cognitions in this respect. Therefore, this study was designed to test the prognostic value of both deliberate and automatic self-anxious associations as a generic vulnerability factor for the onset of anxiety disorders between baseline and 2-year follow-up. To test the disorder specificity of negative self-associations, we also measured self-depressed associations. Self-report measures of depressive symptoms, anxiety symptoms, neuroticism, and fearful avoidance were included as covariates. Healthy controls (n=593), individuals who had depression (n=238), and individuals remitted from an anxiety disorder (n=448) were tested as part of the Netherlands Study of Depression and Anxiety. Deliberate self-anxious associations predicted the onset of anxiety disorders in all groups. Automatic self-anxious associations showed predictive validity only in individuals remitted from an anxiety disorder or in currently depressed individuals. Although deliberate self-depressed associations were related to the onset of anxiety disorders as well, automatic self-depressed associations were not. In the (remitted) patient groups, only deliberate self-anxious associations showed independent predictive value for the onset of anxiety disorders together with self-reported fearful avoidance behavior. In the healthy controls, only a composite index of negative emotionality (depressive or anxiety symptoms and neuroticism) showed independent predictive validity. This study provides the first evidence that automatic and deliberate self-anxious associations have predictive value for the future onset of anxiety disorders.     

Age-associated differences in positional variability are greater with the lower limb

The authors' purpose was to determine the interaction of age and limb used on positional variability at different loads. Eleven young adults and 10 older adults were asked to accurately match and maintain a horizontal target line with 5° abduction of their index finger and 5° dorsiflexion of their ankle for 20 s at loads ranging from 2 to 50% of the maximal load that could be lifted with each limb. The visual gain was kept constant at 1° (visual angle). Positional variability was greater in older adults for both limbs, nonetheless age-associated differences were greater for the ankle dorsiflexion task compared with the abduction of the index finger task. In addition, we found that, independent of age, motor output variability was greater with the lower limb. These results provide novel evidence that older adults may exhibit greater impairments in motor control with the foot compared with the finger. Furthermore, these findings support the idea, using a different task than previous literature, that the lower limb has greater motor output variability than the upper limb.     

How does context affect assessments of facial emotion? The role of culture and age

People from Asian cultures are more influenced by context in their visual processing than people from Western cultures. In this study, we examined how these cultural differences in context processing affect how people interpret facial emotions. We found that younger Koreans were more influenced than younger Americans by emotional background pictures when rating the emotion of a central face, especially those younger Koreans with low self-rated stress. In contrast, among older adults, neither Koreans nor Americans showed significant influences of context in their face emotion ratings. These findings suggest that cultural differences in reliance on context to interpret others' emotions depend on perceptual integration processes that decline with age, leading to fewer cultural differences in perception among older adults than among younger adults. Furthermore, when asked to recall the background pictures, younger participants recalled more negative pictures than positive pictures, whereas older participants recalled similar numbers of positive and negative pictures. These age differences in the valence of memory were consistent across culture.     

Individuals with Fear of Blushing Explicitly and Automatically Associate Blushing with Social Costs

To explain fear of blushing, it has been proposed that individuals with fear of blushing overestimate the social costs of their blushing. Current information-processing models emphasize the relevance of differentiating between more automatic and more explicit cognitions, as both types of cognitions may independently influence behavior. The present study tested whether individuals with fear of blushing expect blushing to have more negative social consequences than controls, both on an explicit level and on a more automatic level. Automatic associations between blushing and social costs were assessed in a treatment-seeking sample of individuals with fear of blushing who met DSM-IV criteria for social anxiety disorder (n = 49) and a non-anxious control group (n = 27) using a single-target Implicit Association Test (stIAT). In addition, participants’ explicit expectations about the social costs of their blushing were assessed. Individuals with fear of blushing showed stronger associations between blushing and negative outcomes, as indicated by both stIAT and self-report. The findings support the view that automatic and explicit associations between blushing and social costs may both help to enhance our understanding of the cognitive processes that underlie fear of blushing.     

Cathodal transcranial direct current stimulation of the right Wernicke's area improves comprehension in subacute stroke patients

Previous studies have shown the appearance of right-sided language-related brain activity in right-handed patients after a stroke. Non-invasive brain stimulation such as transcranial direct current stimulation (tDCS) and repetitive transcranial magnetic stimulation (rTMS) have been shown to modulate excitability in the brain. Moreover, rTMS and tDCS have been found to improve naming in non-fluent post-stroke aphasic patients. Here, we investigated the effect of tDCS on the comprehension of aphasic patients with subacute stroke. We hypothesized that tDCS applied to the left superior temporal gyrus (Wernicke’s area) or the right Wernicke’s area might be associated with recovery of comprehension ability in aphasic patients with subacute stroke. Participants included right-handed subacute stroke patients with global aphasia due to ischemic infarct of the left M1 or M2 middle cerebral artery. Patients were randomly divided into three groups: patients who received anodal tDCS applied to the left superior temporal gyrus, patients who received cathodal tDCS applied to the right superior temporal gyrus, and patients who received sham tDCS. All patients received conventional speech and language therapy during each period of tDCS application. The Korean-Western Aphasia Battery (K-WAB) was used to assess all patients before and after tDCS sessions. After intervention, all patients had significant improvements in aphasia quotients, spontaneous speech, and auditory verbal comprehension. However, auditory verbal comprehension improved significantly more in patients treated with a cathode, as compared to patients in the other groups. These results are consistent with the role of Wernicke’s area in language comprehension and the therapeutic effect that cathodal tDCS has on aphasia patients with subacute stroke, suggesting that tDCS may be an adjuvant treatment approach for aphasia rehabilitation therapy in patients in an early stage of stroke.     

Basketball training increases striatum volume

The striatum is associated with the learning and retention of motor skills. Several studies have shown that motor learning induces neuronal changes in the striatum. We investigated whether macroscopic change in striatum volume occurs in a segment of the human population who learned basketball-related motor skills and practiced them throughout their entire athletic life. Three-dimensional magnetic resonance imaging volumetry was performed in basketball players and healthy controls, and striatum volumes were compared based on basketball proficiency, region and side. We identified morphological enlargement in the striatum of basketball players in comparison with controls. Our results suggest that continued practice and repetitive performance of basketball-related motor skills may induce plastic structural changes in the human striatum.     

Explicating pluralism: Where the mind to molecule pathway gets off the track—Reply to Bickle

It is argued that John Bickle’s Ruthless Reductionism is flawed as an account of the practice of neuroscience. Examples from genetics and linguistics suggest, first, that not every mind-brain link or gene-phenotype link qualifies as a reduction or as a complete explanation, and, second, that the higher (psychological) level of analysis is not likely to disappear as neuroscience progresses. The most plausible picture of the evolving sciences of the mind-brain seems a patchwork of multiple connections and partial explanations, linking anatomy, mechanisms and functions across different domains, levels, and grain sizes. Bickle’s claim that only the molecular level provides genuine explanations, and higher level concepts are just heuristics that will soon be redundant, is thus rejected. In addition, it is argued that Bickle’s recasting of philosophy of science as metascience explicating empirical practices, ignores an essential role for philosophy in reflecting upon criteria for reduction and explanation. Many interesting and complex issues remain to be investigated for the philosophy of science, and in particular the nature of interlevel links found in empirical research requires sophisticated philosophical analysis.     

Positive experiences of high arousal martial arts rituals are linked to identity fusion and costly pro-group actions

A cross-sectional study was conducted with 605 practitioners of Brazilian Jiu Jitsu (BJJ) to test the hypothesis that high arousal rituals promote social cohesion, primarily through identity fusion. BJJ promotion rituals are rare, highly emotional ritual events that often feature gruelling belt-whipping gauntlets. We used the variation in such experiences to examine whether more gruelling rituals were associated with identity fusion and pro-group behaviour. We found no differences between those who had undergone belt-whipping and those who had not and no evidence of a correlation between pain and social cohesion. However, across the full sample we found that positive, but not negative, affective experiences of promotional rituals were associated with identity fusion and that this mediated pro-group action. These findings provide new evidence concerning the social functions of collective rituals and highlight the importance of addressing the potentially diverging subjective experiences of painful rituals.     

Social exclusion and donation behaviour: What conditions motivate the socially excluded to donate?

Previous research has indicated that social exclusion can result in people becoming more focused on themselves than on others, and this may reduce their likelihood of engaging in prosocial behaviour. However, the question of how to promote prosocial behaviour in people who have experienced social exclusion remains. This study comprised two experiments that address this question in the context of donation advertising. Experiment 1 examined participants’ donation intentions after experiencing social exclusion in a ball‐passing game. Experiment 2 followed the same design as Experiment 1, except that real‐life donation behaviour was measured. Consistent with prior findings, our results indicated that those who experienced social exclusion displayed lower donation intentions (Experiment 1) and donated less (Experiment 2) than did those who did not experience social exclusion. However, when those who experienced social exclusion watched advertisements that only portrayed alienated people, they showed as much donation intent as those who did not experience social exclusion (Experiment 1) and ultimately donated more (Experiment 2). These findings indicate that social exclusion may increase an individual's tendency to help others who also are alienated.     

Neighborhood Physical Environments,Recreational Wellbeing,and Psychological Health

The physical environment in which individuals live has important implications for their access to resources and services. The current study examined the role of several features of neighborhoods, such as perceived walkability and neighborhood appearance, in promoting recreational wellbeing, and resulting in impacts on physical wellbeing, happiness, and life satisfaction of residents. Survey responses (N = 1392) were collected in two distinct geographical areas and, using structural equation modeling, relationships between neighborhood physical environments and resident outcomes were explored. Results indicated perceived walkability (access to services) and neighborhood appearance (upkeep and attractiveness) played a significant role in increasing recreational wellbeing. Also, recreational wellbeing was positively related to individuals’ physical wellbeing. Lastly, physical wellbeing was positively associated with happiness and life satisfaction. Together, these findings suggest community planners could use several practical neighborhood improvements to improve the overall health, happiness, and life satisfaction of their residents.