Social anxiety is characterized by heightened fear and anxiety associated with social situations, resulting in the use of avoidance behaviors. Contemporary models suggest that some individuals with social anxiety may choose to completely avoid social situations, while others may seek social connections and interactions and utilize avoidance behaviors such as substance use as a means of distress tolerance, while engaging in these situations. Our aim is to test a theoretical model whereby extraversion could help to explain the heterogenous nature of social anxiety in relation to these behaviors. Lower levels of extraversion have been commonly associated with withdrawal behaviors and higher levels of extraversion have been associated with behaviors commonly enacted in social situations. Understanding factors which predict the use of one behavior over another is imperative to the conceptualization and successful treatment of patients with social anxiety. A sample of 195 college students completed self-report measures and a 10-day experience sampling diary with five diary signals each day. Participants were asked to rate their current negative emotions and behaviors during each diary signal. Using a multilevel modeling approach, we tested the association between social anxiety symptoms and negative affect predicting engagement in substance use or social avoidance and tested whether extraversion moderated this association. Negative affect was included as a covariate given the established associations between elevations in negative affect predicting both behaviors. Results indicated that higher levels of social anxiety symptoms and negative affectivity increased the probability of social avoidance and substance use, and extraversion was a significant predictor for only substance use. Moderation analysis indicated that extraversion moderated the relationship between social anxiety and substance use, suggesting a stronger positive relationship between substance use and social anxiety for individuals higher in extraversion. However, extraversion was not a significant moderator between social anxiety and social avoidance. Overall, the findings suggest that extraversion could be a key factor predicting the use of substances amongst individuals with social anxiety and may need further consideration in treatment.
Integrating different senses to reduce sensory uncertainty and increase perceptual precision can have an important compensatory function for individuals with visual impairment and blindness. However, how visual impairment and blindness impact the development of optimal multisensory integration in the remaining senses is currently unknown. Here we first examined how audio‐haptic integration develops and changes across the life span in 92 sighted (blindfolded) individuals between 7 and 70 years of age. We used a child‐friendly task in which participants had to discriminate different object sizes by touching them and/or listening to them. We assessed whether audio‐haptic performance resulted in a reduction of perceptual uncertainty compared to auditory‐only and haptic‐only performance as predicted by maximum‐likelihood estimation model. We then compared how this ability develops in 28 children and adults with different levels of visual experience, focussing on low‐vision individuals and blind individuals that lost their sight at different ages during development. Our results show that in sighted individuals, adult‐like audio‐haptic integration develops around 13–15 years of age, and remains stable until late adulthood. While early‐blind individuals, even at the youngest ages, integrate audio‐haptic information in an optimal fashion, late‐blind individuals do not. Optimal integration in low‐vision individuals follows a similar developmental trajectory as that of sighted individuals. These findings demonstrate that visual experience is not necessary for optimal audio‐haptic integration to emerge, but that consistency of sensory information across development is key for the functional outcome of optimal multisensory integration. 相似文献
Should scientific facts and methods have an epistemically privileged status in public reason? In Rawls’s public reason account he asserts what we will label the Scientific Standard Stricture: citizens engaged in public reason must be guided by non-controversial scientific methods, and public reason must be in line with non-controversial scientific conclusions. The Scientific Standard Stricture is meant to fulfill important tasks such as enabling the determinateness and publicity of the public reason framework. However, Rawls leaves us without elucidation with regard to when science is and is not ‘non-controversial’ and more importantly, we are left without a justification for a stricture which excludes certain controversial beliefs and methods of inquiry from the realm of political justification. In this article, we offer what we deem to be the most plausible interpretation of Rawls’s Scientific Standards Stricture. We then use Rawls’s general theoretical framework to examine various potential justifications for privileging these ‘non-controversial’ scientific methods and conclusions. We conclude that no viable justification is available to Rawls. 相似文献
We describe the creation of the first multisensory stimulus set that consists of dyadic, emotional, point-light interactions combined with voice dialogues. Our set includes 238 unique clips, which present happy, angry and neutral emotional interactions at low, medium and high levels of emotional intensity between nine different actor dyads. The set was evaluated in a between-design experiment, and was found to be suitable for a broad potential application in the cognitive and neuroscientific study of biological motion and voice, perception of social interactions and multisensory integration. We also detail in this paper a number of supplementary materials, comprising AVI movie files for each interaction, along with text files specifying the three dimensional coordinates of each point-light in each frame of the movie, as well as unprocessed AIFF audio files for each dialogue captured. The full set of stimuli is available to download from: http://motioninsocial.com/stimuli_set/. 相似文献
We present a conceptual framework on the experience of time and provide a coherent basis on which to base further inquiries into qualitative approaches concerning time experience. We propose two Time-Layers (Macro-Layer and Micro-Layer) and two Time-Formats (Flow and Structure) forming four Time-Domains. Micro-Flow and Micro-Structure represent the implicit phenomenal basis, from which the explicit experiences of Macro-Flow and Macro-Structure emerge. Complementary to this theoretical proposal, we present empirical results from qualitative content analysis obtained from 25 healthy participants. The data essentially corroborate the theoretical proposal. With respect to Flow, the phenomenally accessible time experience appeared as a continuous passage reaching from the past through the present into the future. With respect to Structure, the individual present was embedded in the individual biography, emerging from past experiences and comprising individual plans and goals. New or changing plans and goals were being integrated into the existing present, thus forming a new present. The future appeared as changeable within the present, by means from the past, and therefore as a space of potential opportunities. Exemplarily, we discuss these results in relation to previous empirical findings on deviant experiences of time in Autism Spectrum Disorder (ASD) that is presumably characterized by a breakdown of Flow and concomitant compensatory repetition resulting in an overly structured time. Finally, we speculate about possible implications of these findings both for psychopathological and neuroscientific research. 相似文献