Active and passive social media use are differentially related to depressive symptoms in older adults.

OBJECTIVES: Previous research on social media use (SMU) and mental health has focused on younger individuals. For example, in young adults active SMU (e.g. posting content) has been related to decreased depressive symptoms, whereas passive SMU (e.g. browsing content) has been related to increased depressive symptoms. These relationships have not yet been investigated in older adults, however, even though SMU and poor mental health are common. METHODS: We collected data from adults aged 65 years and older, and categorized SMU into active and passive dimensions with a principal component analysis. Next, we conducted t-tests and logistic regressions to assess whether older adults' SMU was associated with depressive symptoms. RESULTS: Our analysis revealed that active SMU was associated with increased odds for depressive symptoms, whereas passive SMU was associated with decreased odds for depressive symptoms. CONCLUSION: Our results suggest that the relationships between active and passive SMU and depressive symptoms in older adults are different from previous literature focusing on younger individuals. We theorize that these findings may be due to older adults' engaging in fewer social comparisons overall, and hence experiencing fewer negative feelings while passively viewing others' social media posts.

Category-specific memory encoding in the medial temporal lobe and beyond: the role of reward.

The medial temporal lobe (MTL), including the hippocampus (HC), perirhinal cortex (PRC), and parahippocampal cortex (PHC), is central to memory formation. Reward enhances memory through interplay between the HC and substantia nigra/ventral tegmental area (SNVTA). While the SNVTA also innervates the MTL cortex and amygdala (AMY), their role in reward-enhanced memory is unclear. Prior research suggests category specificity in the MTL cortex, with the PRC and PHC processing object and scene memory, respectively. It is unknown, however, whether reward modulates category-specific memory processes. Furthermore, no study has demonstrated clear category specificity in the MTL for encoding processes contributing to subsequent recognition memory. To address these questions, we had 39 healthy volunteers (27 for all memory-based analyses) undergo functional magnetic resonance imaging while performing an incidental encoding task pairing objects or scenes with high or low reward, followed by a next-day recognition test. Behaviorally, high reward preferably enhanced object memory. Neural activity in the PRC and PHC reflected successful encoding of objects and scenes, respectively. Importantly, AMY encoding effects were selective for high-reward objects, with a similar pattern in the PRC. The SNVTA and HC showed no clear evidence of successful encoding. This behavioral and neural asymmetry may be conveyed through an anterior-temporal memory system, including the AMY and PRC, potentially in interplay with the ventromedial prefrontal cortex.

Individual differences in envy experienced through perspective-taking involves functional connectivity of the superior frontal gyrus.

Envy is the painful or resentful awareness of another's advantage combined with a desire to possess that same advantage. Recent neuroscientific research has begun to shed light on the brain regions that process the experience of envy, including regions of the prefrontal cortex involved in emotional processing and social cognition. It is still unclear, however, which regions of the brain are functionally connected during the experience of envy. We recorded functional neuroimaging data while inducing simulated envy in participants, experienced through a perspective-taking hypothetical scenario task. In this task, participants took the perspective of a protagonist portrayed in a written description and compared themselves to either i) a self-similar/superior individual, ii) a self-dissimilar/superior individual, or iii) a self-dissimilar/average individual. During each comparison, participants also reported how much envy they experienced while taking the protagonists perspective. We demonstrate an inverse relationship in the connectivity of the left superior frontal gyrus to both the right supramarginal gyrus and the precuneus with respect to self-reported envy ratings across participants. In other words, we show that the greater the functional connectivity that the left superior frontal gyrus shares with the right supramarginal gyrus and precuneus, the less reported envy a participant experiences. Overall, our results are in line with previous research implicating the superior frontal gyrus in the reappraisal of negative emotions and extend these findings by showing this region is also involved in modulating the simulated experience of the social comparative, negative emotion of envy.

Problematic Social Media Use and Perceived Social Isolation in Older Adults: A Cross-Sectional Study.

BACKGROUND: Social isolation in older adults is associated with numerous adverse health outcomes. In today's digital society, if individuals perceive themselves to be socially isolated, they can take steps to interact with others on social media platforms. Research with younger adults indicates that social media use is positively linked to social isolation. However, less is known about social media use and social isolation in older adults. OBJECTIVE: The objective of this study was to investigate the possible association between social isolation and degree of social media use in older adults. METHODS: Using Internet sources, we recruited 213 participants (79.8% female; mean age 62.6 years, SD 8.3) who responded to an online survey focusing on living situation, depression, social isolation, and 2 measures of social media use: estimated daily time on social media and problematic social media use. Next, using binary logistic regression, we assessed associations between social isolation and social media use. RESULTS: Our analyses failed to identify a relationship between perceived social isolation and estimated daily time on social media; however, higher problematic social media use was associated with higher perceived social isolation (OR 1.17). DISCUSSION AND CONCLUSION: Although no causal attribution can be made, our findings demonstrate an association between problematic social media use and perceived social isolation in older adults. Researchers conducting social media interventions in older adults should note this potential and monitor maladaptive use of these platforms. Overall, our results provide an important starting point for future studies on social media use and social isolation in older adults.

The Use of Recommendations on Physician Rating Websites: The Number of Raters Makes the Difference When Adjusting Decisions.

Physician rating websites allow users to check physicians' profiles, write reviews, or rate their performance. The opinion of other users regarding a physician can affect our decision to visit her/him. To investigate the specific role of the number of users rating a physician when choosing a physician with support of these platforms, we used a Judge-Advisor System in which participants answered their likelihood to visit a physician before and after seeing the recommendations of others. Within the experiment, three conditions were presented: high and low number of reviewers recommending a physician, and no recommendations. We found that the participants' likelihood to visit a physician varied with respect to the displayed physician characteristics on the platform. Importantly, after the recommendation of others was presented, participants' likelihood to visit the physician changed significantly. The participants' adjusted response was significantly closer to the recommendation coming from a higher number of users, which indicate that this online, social media cue influences our decision to visit physicians. Comments and ratings on physician ratings are generally positive, but we show that negative ratings have a direct negative influence in the decision to visit a physician. We suggest administrators of these platforms to pay special attention to the content that users upload.

Individual differences in social desirability are associated with white-matter microstructure of the external capsule.

Humans tend to present themselves in a positive light to gain social approval. This behavioral trait, termed social desirability, is important for various types of social success. Surprisingly, investigation into the neural underpinnings of social desirability has been limited and focused only on interindividual differences in dopamine receptor binding. These studies revealed reduced dopamine receptor binding in the striatum of individuals who are high in trait social desirability. Interestingly, high dopamine signaling has been associated with low white-matter integrity, irrespective of social desirability. Based on these findings, we hypothesized that a positive association exists between trait social desirability and the white-matter microstructure of the external capsule, which carries fibers to the striatum from the prefrontal cortex. To test this hypothesis, we collected diffusion tensor imaging data and examined the relationship between fractional anisotropy of the external capsule and participants' social desirability-our analysis revealed a positive association. As a second exploratory step, we examined the association between social desirability and white-matter microstructure throughout the whole brain. Our whole-brain analysis revealed associations within multiple major white-matter tracts, demonstrating that socially desirable behavior relies on connectivity between distributed brain regions.

Observed Instagram use and satisfaction with life: Associations with received communications and exploration of others' content after posting a selfie.

Over 70% of Americans use social media platforms, like Instagram. With this high prevalence, researchers have investigated the relationship between social media use and psychological well-being. Extant research has yielded mixed results, however, as most measures of social media use are self-reported and focus on amount of use. Even when studies account for type of social media use, such as active or passive use, there remains much to be captured. To address this, we asked participants to report their satisfaction with life and then recorded their actual Instagram activity for 10 minutes after posting a "selfie" portrait to their account. We coded the observed Instagram activity into the following four clusters of experiences: communications received, communications sent, monitoring self-related content, and exploring other-related content. We found that greater life satisfaction was associated with higher frequency of receiving communications and viewing other-related content. Life satisfaction was not associated with frequency of sending communications and self-monitoring. Surprisingly, none of the clusters of Instagram experiences were negatively associated with life satisfaction. Our findings highlight the importance of objective data and moving beyond the active/passive dichotomy of social media use to consider additional experiences.

Behavioral Addictive Disorders in Children and Adolescents.

Behavioral addictive disorders (BADs) are syndromes similar to substance use disorders (SUDs) but with a focus on behaviors rather than on use of psychoactive substances. These non-substance-related disorders occur when typical, rewarding behaviors, such as gambling, playing video games, and using social media, are done in excess, affecting daily functioning and/or inducing severe psychological distress. BADs are chronic and relapsing, and characterized by a failure to resist an impulse, drive, or temptation to perform an act despite adverse consequences. They are common among youth and linked to poor mental health outcomes and negative social consequences. Given the high prevalence of BADs and their potential serious outcomes, the burden on the youth population's mental health can be consequential.1.

Established Adults, Who Self-Identify as Smartphone and/or Social Media Overusers, Struggle to Balance Smartphone Use for Personal and Work Purposes.

Smartphone ownership and use continues to proliferate, allowing people to easily access online communication, entertainment, and information. Importantly, individuals can perceive that they overuse their smartphone and/or the social media applications (apps) they access on their devices. Much of the research on smartphone overuse has focused on youth and emerging adults, with little research focusing on individuals in the established adulthood stage of life. This study examines smartphone use among established adults who perceive that they overuse their smartphone and/or social media. As part of a larger study, we conducted in-depth interviews with 21 individuals (30-45 years old) who self-identified as smartphone and/or social media overusers. Data were collected through a pre-survey, 1-hour interview, and smartphone use screenshots. Audio-recorded interviews were transcribed and then coded using NVivo software. Participants' average age was 35.9 years (SD = 4.1). The majority of the sample were female (67%), White (76%), and had a master's degree or higher (76%). Participants spent an average of 215 min on their smartphone daily, primarily using social media, video conferencing, and texting apps. Issues with smartphone use occurred when there was an unclear separation between work and personal use. Participants felt pressure to always respond quickly to work emails. An effort was made to limit smartphone use for work and during family time to be present for their family. Established adults strive to balance smartphone use for personal and work purposes. Creating boundaries for how and when established adults use their smartphone may help them find this balance.

Eye movements reset visual perception.

Human vision uses saccadic eye movements to rapidly shift the sensitive foveal portion of our retina to objects of interest. For vision to function properly amidst these ballistic eye movements, a mechanism is needed to extract discrete percepts on each fixation from the continuous stream of neural activity that spans fixations. The speed of visual parsing is crucial because human behaviors ranging from reading to driving to sports rely on rapid visual analysis. We find that a brain signal associated with moving the eyes appears to play a role in resetting visual analysis on each fixation, a process that may aid in parsing the neural signal. We quantified the degree to which the perception of tilt is influenced by the tilt of a stimulus on a preceding fixation. Two key conditions were compared, one in which a saccade moved the eyes from one stimulus to the next and a second simulated saccade condition in which the stimuli moved in the same manner but the subjects did not move their eyes. We find that there is a brief period of time at the start of each fixation during which the tilt of the previous stimulus influences perception (in a direction opposite to the tilt aftereffect)--perception is not instantaneously reset when a fixation starts. Importantly, the results show that this perceptual bias is much greater, with nearly identical visual input, when saccades are simulated. This finding suggests that, in real-saccade conditions, some signal related to the eye movement may be involved in the reset phenomenon. While proprioceptive information from the extraocular muscles is conceivably a factor, the fast speed of the effect we observe suggests that a more likely mechanism is a corollary discharge signal associated with eye movement.

Problematic social media use and social support received in real-life versus on social media: Associations with depression, anxiety and social isolation.

Social media platforms allow people to connect with each other and obtain social rewards. In some individuals, these reinforcing rewards can induce maladaptive, problematic social media use, with symptoms similar to substance use disorders. This problematic social media use has been associated with poorer mental health. Previous studies have demonstrated that social support can protect against poor mental health. People can receive social support both in real-life and on social media, however, so we investigated whether these two types of social support mediate the relationship between problematic social media use and poor mental health. We conducted an online survey, collecting measures of problematic social media use and mental health (depression, anxiety, and social isolation), as well as measures of real-life social support and social support received on social media. We then performed a path analysis on these data. Our analysis revealed that problematic social media use was significantly associated with decreased real-life social support and increased social support on social media. Importantly, real-life social support was then associated with reduced depression, anxiety, and social isolation, while social support on social media was not associated with these mental health measures. Our findings reveal the value of real-life social support when considering the relationship between problematic social media use and mental health. Implications for further research and practice are discussed.

Problematic social media use is associated with the evaluation of both risk and ambiguity during decision making.

BACKGROUND AND AIMS: People can engage in excessive, maladaptive use of social media platforms. This problematic social media use mirrors substance use disorders with regard to symptoms and certain behavioral situations. For example, individuals with substance use disorders demonstrate aberrations in risk evaluations during decision making, and initial research on problematic social media use has revealed similar findings. However, these results concerning problematic social media use have been clouded by tasks that involve learning and that lack a clear demarcation between risky and ambiguous decision making. Therefore, we set out to specifically determine the relationship between problematic social media use and decision making under both risk and ambiguity, in the absence of learning. METHODS: We assessed each participant's (N = 90) self-reported level of problematic social media use. We then had them perform the wheel of fortune task, which has participants make choices between a sure option or either a risky or ambiguous gamble. In this way, the task isolates decisions made under risk and ambiguity, and avoids trial-to-trial learning. Results: We found that the greater an individual's problematic social media use, the more often that individual choses high-risk gambles or ambiguous gambles, regardless of the degree of ambiguity. DISCUSSION AND CONCLUSIONS: Our findings indicate that greater problematic social media use is related to a greater affinity for high-risk situations and overall ambiguity. These findings have implications for the field, specifically clarifying and extending the extant literature, as well as providing future avenues for research.

Searching for Social Media Addiction: A Content Analysis of Top Websites Found through Online Search Engines.

Disordered social media use, often referred to as "social media addiction", has not been officially recognized by medical bodies such as the American Psychiatric Association or the World Health Organization. However, websites still present information to laypeople on how to treat and manage social media addiction, which can pose the risk of spreading low quality or incorrect information. As such, we aimed to assess how the most popular social media addiction websites present information across multiple metrics. We conducted an in-depth online search to identify the top social media addiction websites in November 2019 (N = 23). Websites were separated into four distinct classifications: (1) treatment/therapy/medical; (2) informational; (3) news article; and (4) blog/essay. Based on previous website analysis research, three trained coders evaluated these websites on six metrics: (1) design; (2) credibility; (3) accessibility; (4) literacy; (5) engagement; and (6) social media addiction content. Design features were the top-rated metric across all websites, followed by credibility. Websites scored the lowest for the engagement and social media addiction content metrics. Across website classifications, scores for social media addiction content varied greatly, with blog/essay websites ranking the lowest and informational websites ranking the highest. Our findings provide necessary information for both patients and healthcare providers, apprising these individuals and the field about the current online health information landscape for disordered social media use.

Hippocampal neurogenesis is not required for behavioral effects of environmental enrichment.

Environmental enrichment increases adult hippocampal neurogenesis and alters hippocampal-dependent behavior in rodents. To investigate a causal link between these two observations, we analyzed the effect of enrichment on spatial learning and anxiety-like behavior while blocking adult hippocampal neurogenesis. We report that environmental enrichment alters behavior in mice regardless of their hippocampal neurogenic capability, providing evidence that the newborn cells do not mediate these effects of enrichment.

Snapchat vs. Facebook: Differences in problematic use, behavior change attempts, and trait social reward preferences.

INTRODUCTION: Facebook and Snapchat employ different features for encouraging repeated, reinforced use of their platforms. Importantly, this repeated use can become maladaptive and problematic. We sought to understand differences between these platforms in regard to problematic use, and its motivations and outcomes. We specifically focused on trait social reward preferences as important yet overlooked motivations. We also focused on quit and use reduction attempts as important yet overlooked outcomes. METHODS: Participants (N = 472) responded to an online survey that assessed their Snapchat and Facebook use, as well as trait social reward preferences. RESULTS: Our findings, with individuals who used both Snapchat and Facebook, revealed that (a) participants reported more time on Snapchat than Facebook, as well as more problematic use of Snapchat than Facebook, nevertheless (b) they reported more attempts to quit Facebook than Snapchat, with no difference in use reduction attempts between platforms, and (c) trait social reward dimensions - admiration, negative social potency, and sociability - were positively associated with problematic Snapchat use, and only negative social potency was positively associated with problematic Facebook use. CONCLUSIONS: These findings demonstrate the relevance of social media platform features and social reward preferences in problematic social media use. Implications for further research and practice are discussed.

Real-world social support but not in-game social support is related to reduced depression and anxiety associated with problematic gaming.

Playing video games can become problematic, interfering with gamers' daily functioning. This problematic gaming is associated with negative mental health outcomes, such as depression and anxiety. Social support, provided in the real-world, can protect against mental health disorders such as depression and anxiety. However, previous research on gaming has found that real-world social support for gamers often decreases, while within-game social support increases. Importantly, it is currently unknown whether in-game social support can replace real-world social support in protecting problematic gamers from symptoms of depression and anxiety. To address this, we conducted an online survey (n = 361), recruiting participants from both a general university population and an online campus gaming (E-sports) group. We collected measures of problematic gaming, depression, anxiety, and both real-world and in-game social support, and then conducted a path analysis. In line with previous research, problematic gaming was significantly associated with decreased real-world social support and increased in-game social support. However, only real-world social support was then associated with reduced depression and anxiety, while in-game social support was unrelated to both. Problematic gaming also retained a significant direct effect on depression and anxiety. Maintaining real-world social support should be encouraged in the face of problematic gaming behaviors.

Fear-induced increases in loss aversion are linked to increased neural negative-value coding.

Human decisions are often influenced by emotions. An economically relevant example is the role of fear in generating loss aversion. Previous research implicates the amygdala as a key brain structure in the experience of fear and loss aversion. The neural mechanism behind emotional influences on loss aversion is, however, unclear. To address this, we measured brain activation with functional magnetic resonance imaging (fMRI) while participants made decisions about monetary gambles after viewing fearful or neutral faces. We observed that loss aversion following the presentation of neutral faces was mainly predicted by greater deactivations for prospective losses (relative to activations for prospective gains) in several brain regions, including the amygdala. By contrast, increases in loss aversion following the presentation of fearful faces were mainly predicted by greater activations for prospective losses. These findings suggest a fear-induced shift from positive to negative value coding that reflects a context-dependent involvement of distinct valuation processes.

Problematic social media use is associated with increased risk-aversion after negative outcomes in the Balloon Analogue Risk Task.

Around the world, people display maladaptive, problematic use of online social networking sites (SNSs), like Facebook, Snapchat, and Instagram. The symptoms of this problematic SNS use are similar to symptoms of substance use and behavioral addictive disorders, such as relapse when attempting to quit. Individuals with substance use and behavioral addictive disorders also display increased risk-taking when making decisions, but little research has investigated decision making with respect to problematic SNS use. We therefore assessed risky decision making and problematic SNS use by utilizing the Balloon Analogue Risk Task (BART). In line with previous research on behavioral addictive disorders, we hypothesized that greater problematic SNS use would be linked with greater risk-taking. To address our hypothesis, we conducted three studies in which we administered the Bergen Social Media Addiction Scale to assess problematic SNS use and related scores to BART performance. Collectively, and counter to our initial hypothesis, we found a negative association between problematic SNS use and risk-taking. Specifically, the more problematic one's SNS use, the less risk they took, but this risk aversion only occurred after receiving negative feedback on previous decisions and then encountering a situation with less actual risk. Implications of this novel finding are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Excessive social media users demonstrate impaired decision making in the Iowa Gambling Task.

BACKGROUND AND AIMS: Online social networking sites (SNSs) like Facebook provide users with myriad social rewards. These social rewards bring users back to SNSs repeatedly, with some users displaying maladaptive, excessive SNS use. Symptoms of this excessive SNS use are similar to symptoms of substance use and behavioral addictive disorders. Importantly, individuals with substance use and behavioral addictive disorders have difficulty making value-based decisions, as demonstrated with paradigms like the Iowa Gambling Task (IGT); however, it is currently unknown if excessive SNS users display the same decision-making deficits. Therefore, in this study, we aimed to investigate the relationship between excessive SNS use and IGT performance. METHODS: We administered the Bergen Facebook Addiction Scale (BFAS) to 71 participants to assess their maladaptive use of the Facebook SNS. We next had them perform 100 trials of the IGT to assess their value-based decision making. RESULTS: We found a negative correlation between BFAS score and performance in the IGT across participants, specifically over the last block of 20 trials. There were no correlations between BFAS score and IGT performance in earlier blocks of trials. DISCUSSION: Our results demonstrate that more severe, excessive SNS use is associated with more deficient value-based decision making. In particular, our results indicate that excessive SNS users may make more risky decisions during the IGT task. CONCLUSION: This result further supports a parallel between individuals with problematic, excessive SNS use, and individuals with substance use and behavioral addictive disorders.

Short abstinence from online social networking sites reduces perceived stress, especially in excessive users.

Online social networking sites (SNSs), such as Facebook, provide frequent and copious social reinforcers (e.g., "likes") delivered at variable time intervals. As a result, some SNS users display excessive, maladaptive behaviors on these platforms. Excessive SNS users, and typical users alike, are often aware of their intense use and psychological dependence on these sites, which may lead to elevated stress. In fact, research has demonstrated that use of SNSs alone induces elevated stress. Other research has begun to investigate the effects of short periods of SNS abstinence, revealing beneficial effects on subjective wellbeing. We aligned these two lines of research and hypothesized that a short period of SNS abstinence would induce a reduction in perceived stress, especially in excessive users. The results confirmed our hypothesis and revealed that both typical and excessive SNS users experienced reduction in perceived stress following SNS abstinence of several days. The effects were particularly pronounced in excessive SNS users. The reduction in stress was not associated with academic performance increases. These results indicate a benefit-at least temporarily-of abstinence from SNSs and provide important information for therapists treating patients who struggle with excessive SNS use.