Echo Chamber? What Echo Chamber? Reviewing the Evidence

Echo Chamber? What Echo Chamber? Reviewing the Evidence. Axel Bruns. Future of Journalism 2017 Conference. http://www.cardiff.ac.uk/conferences/future-of-journalism-conference-2017, http://snurb.info/node/2263

Abstract: The success of political movements that appear to be immune to any factual evidence that contradicts their claims --  from the Brexiteers to the .alt-right., neo-fascist groups supporting Donald Trump --  has reinvigorated claims that social media spaces constitute so-called "filter bubbles" or "echo chambers".  But while such claims may appear intuitively true to politicians and journalists --  who have themselves been accused of living in filter bubbles (Bradshaw 2016) --, the evidence that ordinary users experience their everyday social media environments as echo chambers is far more limited.

For instance, a 2016 Pew Center study has shown that only 23% of U.S. users on Facebook and 17% on Twitter now say with confidence that most of their contacts' views are similar to their own.  20% have changed their minds about a political or social issue because of interactions on social media (Duggan and Smith 2016). Similarly, large-scale studies of follower and interaction networks on Twitter (e.g. Bruns et al ., 2014) show that national Twitterspheres are often thoroughly interconnected and facilitate the flow of information across boundaries of personal ideology and interest, except for a few especially hardcore partisan communities.

Building on new, comprehensive data from a project that maps and tracks interactions between 4 million accounts in the Australian Twittersphere, this paper explores in detail the evidence for the existence of echo chambers in that country. It thereby moves the present debate beyond a merely anecdotal footing, and offers a more reliable assessment of the "echo chamber"  threat.

Keywords: echo chamber, filter bubble, social media, Twitter, Australia, network analysis

Check also: Polarized Mass or Polarized Few? Assessing the Parallel Rise of Survey Nonresponse and Measures of Polarization. Amnon Cavari and Guy Freedman. The Journal of Politics,
https://www.bipartisanalliance.com/2018/03/polarized-mass-or-polarized-few.html

Restrictive policies engender more support from stakeholders if to be implemented in the distant vs near future

It’s about time: Divergent evaluations of restrictive policies in the near and distant future. Nathaniel Nakashima, David Daniels and Kristin Laurin. Organizational Behavior and Human Decision Processes, Volume 142, September 2017, Pages 12-27, https://doi.org/10.1016/j.obhdp.2017.07.005

Abstract: When should leaders announce policies that create net benefits for organizations, but also restrict individual member choices? We find that restrictive policies engender more support from stakeholders when they are to be implemented in the distant versus near future (Studies 1 and 2). We find similar results when manipulating construal level instead of temporal distance (Study 3). The effect of temporal distance on attitudes toward a policy is mediated by people’s attention to different aspects of the policy (desirability vs. feasibility, pros vs. cons, self vs. other) (Study 4). Furthermore, temporal distance enhances support for policies that are high, but not low, in desirability for the collective (Study 5). The evidence is consistent with Construal Level Theory; we also consider Rational Choice Theory as an alternative perspective. Our findings suggest that leaders who wish to maximize member support for restrictive policies should consider announcing them well in advance of their implementation date.

A beluga whale socialized with bottlenose dolphins imitates their whistles

A beluga whale socialized with bottlenose dolphins imitates their whistles. Elena M. Panova, and Alexandr V. Agafonov. Animal Cognition, https://doi.org/10.1007/s10071-017-1132-4

Abstract: The research on imitation in the animal kingdom has more than a century-long history. A specific kind of imitation, auditory–vocal imitation, is well known in birds, especially among songbirds and parrots, but data for mammals are limited to elephants, marine mammals, and humans. Cetaceans are reported to imitate various signals, including species–specific calls, artificial sounds, and even vocalizations from other species if they share the same habitat. Here we describe the changes in the vocal repertoire of a beluga whale that was housed with a group of bottlenose dolphins. Two months after the beluga’s introduction into a new facility, we found that it began to imitate whistles of the dolphins, whereas one type of its own calls seemed to disappear. The case reported here may be considered as an interesting phenomenon of vocal accommodation to new social companions and cross-species socialization in cetaceans.

Check also: Spontaneous cross-species imitation in interactions between chimpanzees and zoo visitors. Tomas Persson, Gabriela-Alina Sauciuc, and Elainie Alenkær Madsen. Primates, https://link.springer.com/article/10.1007/s10329-017-0624-9

It’s not as bad as you think: menopausal representations are more positive in postmenopausal women

It’s not as bad as you think: menopausal representations are more positive in postmenopausal women. Lydia Brown, Valerie Brown, Fiona Judd & Christina Bryant. Journal of Psychosomatic Obstetrics & Gynecology, http://dx.doi.org/10.1080/0167482X.2017.1368486

Abstract

Introduction: The menopausal transition is associated with underlying hormonal changes that can contribute to a range of physical and emotional symptoms. Psycho-social factors including attitudes and internal representations play a central role in women’s experience of the menopause, but very little is known about how representations might differ across menopausal stages.

Methods: A sample of 387 women aged 40–60 completed a postal questionnaire that included the menopausal representations questionnaire, the emotional representation subscale adapted from the illness perception questionnaire, and data on menopausal status.

Results: Significant differences across menopausal stages were found for both cognitive [F(2, 381) = 4.32, p < .05, η2 = 0.022], and emotional [F(2, 381) = 9.70, p < .01, η2 = 0.048] menopausal representations. Postmenopausal women had a significantly more positive cognitive representations of the menopause relative to perimenopausal women (standardised mean difference = 0.25, p > .05). Postmenopausal women held a significantly more positive emotional representation of the menopause than both premenopausal (standardised mean difference = 0.56, p < .05) and perimenopausal (standardised mean difference = 0.43, p < .05) women.

Discussion: Women’s emotional and cognitive representations of the menopause are more positive among postmenopausal women, compared to women in the late premenopausal stage. This is consistent with the affective forecasting theory, which proposes the tendency to overestimate the intensity and duration of emotional reactions to future events. Given the association between representations and bothersomeness of menopausal symptoms, clinicians should educate women about their expectations, and challenge their negative beliefs about the menopause.

Keywords: Climacterium, menopause, perimenopause, psychological wellbeing, cognitions

Taking Facebook at face value: why the use of social media may cause mental disorder

Østergaard, S. D. (2017), Taking Facebook at face value: why the use of social media may cause mental disorder. Acta Psychiatr Scand. doi:10.1111/acps.12819

Facebook, the largest social media network, currently has approximately 2 billion monthly users [1], corresponding to more than 25% of the world's population. While the existence of an online social network may seem harmless or even beneficial, a series of recent studies have suggested that use of Facebook and other social media platforms may have a negative influence on mental health [2-5].

In a recent longitudinal study based on three ‘waves’ of data (2013, 2014, and 2015) from more than 5000 participants in the nationally representative Gallup Panel Social Network Study, Shakya and Christakis found that the use of Facebook (which was measured objectively) was negatively associated with self-reported mental well-being [3]. Both clicking ‘like’ on the content of others’ Facebook pages and posting ‘status updates’ on one's own Facebook page were negatively associated with mental well-being. Importantly, these results were robust to two-wave prospective analyses suggesting that the direction of the effect goes from Facebook use to lower mental well-being and not the other way around [3]. However, due to the observational nature of the analyzed data, these results do not represent causal evidence of a harmful effect of Facebook, but probably—due to the longitudinal nature of the study—represent the best available estimate of the effect of Facebook on mental well-being to date [3]. Another recent study supporting that Facebook use could have a negative effect on well-being is that of Tromholt [5] in which the 1095 participants were randomly assigned (or rather randomly urged) to follow one of two instructions: (i) ‘Keep using Facebook as usual in the following week’, or (ii) ‘Do not use Facebook in the following week’ [5]. After this week, those assigned to the Facebook abstinence group reported significantly higher life satisfaction and more positive emotions than those assigned to the ‘Facebook as usual’ group [5]. However, due to the unblinded design of this study, its results do not represent causal evidence of the effect of Facebook either—an effect, which will be difficult to establish.

If we nevertheless assume that Facebook use indeed has a harmful effect on mental well-being, what is then the mechanism underlying it? This aspect remains unclear, but an intuitively logical explanation—with some empirical support—is that people predominantly display the most positive aspects of their lives on social media [6] and that other people—who tend to take these positively biased projections at face value—therefore get the impression that their own life compares negatively to that of other Facebook users [7]. As indicated by the recent findings by Hanna et al., such upward social comparison is very likely to mediate the negative effect of Facebook use on mental well-being [4].

Seeing live theater yields higher levels of tolerance, social perspective taking, & stronger command of the plot & vocabulary of those plays

Greene, Jay P. and Holmes Erickson, Heidi and Watson, Angela and Beck, Molly, The Play's the Thing: Experimentally Examining the Social and Cognitive Effects of School Field Trips to Live Theater Performances (August 31, 2017). EDRE Working Paper No. 2017-13. Available at SSRN: https://ssrn.com/abstract=3030928

Abstract: Field trips to see theater performances are a long-standing educational practice, however, there is little systematic evidence demonstrating educational benefits. This article describes the results of five random assignment experiments spanning two years where school groups were assigned by lottery to attend a live theater performance, or for some groups, watch a movie-version of the same story. We find significant educational benefits from seeing live theater, including higher levels of tolerance, social perspective taking, and stronger command of the plot and vocabulary of those plays. Students randomly assigned to watch a movie did not experience these benefits. Our findings also suggest that theater field trips may cultivate the desire among students to frequent the theater in the future.

More modesty, less trust -- The law of Jante

The Law of Jante and generalized trust. Cornelius Cappelen & Stefan Dahlberg. Acta Sociologica, https://doi.org/10.1177/0001699317717319

Abstract: A widespread cultural phenomenon – and/or individual disposition – is the idea that one should never try to be more, try to be different, or consider oneself more valuable than other people. In Scandinavia this code of modesty is referred to as the ‘Jante mentality’, in Anglo-Saxon societies the ‘tall puppy syndrome’, and in Asian cultures ‘the nail that stands out gets hammered down’. The study reported here examines how this modesty code relates to generalized trust. We argue, prima facie, that a positive and a negative relationship are equally plausible. Representative samples of the Norwegian population were asked about their agreement with the Jante mentality and the extent to which they have trust in other people. Two population surveys were conducted; one measuring individual level associations and another measuring aggregate level associations. It was found that the relationship between having a Jante mentality and trust is negative, at both levels of analysis and, furthermore, that the Jante mentality – this modesty code assumed to be instilled in Scandinavians from early childhood – is a powerful predictor of generalized trust.

Low relational mobility leads to greater motivation to understand enemies but not friends and acquaintances

Low relational mobility leads to greater motivation to understand enemies but not friends and acquaintances. Liman Man Wai Li, Takahiko Masuda & Hajin Lee. British Journal of Social Psychology, onlinelibrary.wiley.com/doi/10.1111/bjso.12216/abstract

Abstract: Enemyship occurs across societies, but it has not received as much attention as other types of relationships such as friendship in previous research. This research examined the influence of relational mobility on people's motivation to understand their personal enemies by measuring different dependent variables across three studies. First, a cross-cultural comparison study found that Hong Kong Chinese, from a low-relational-mobility society, reported a stronger desire to seek proximity to enemies relative to European Canadians, from a high-relational-mobility society (Study 1). To test causality, two manipulation studies were conducted. Participants were presented with images of co-workers, including enemies, friends, and acquaintances, in a hypothetical company. The results showed that the participants who perceived lower relational mobility paid more attention to their enemies in an eye-tracking task (Study 2) and had a higher accuracy rate for recognizing the faces of the enemies in an incidental memory test (Study 3). In contrast, the influence of relational mobility on motivation to understand friends and acquaintances was minimal. Implications for research on interpersonal relationships and relational mobility are discussed.

The Split-Brain Phenomenon Revisited: A Single Conscious Agent with Split Perception

The Split-Brain Phenomenon Revisited: A Single Conscious Agent with Split Perception. Yair Pinto, Edward H.F de Haan, and Victor A.F. Lamme. Trends in Cognitive Sciences, https://doi.org/10.1016/j.tics.2017.09.003

Abstract: The split-brain phenomenon is caused by the surgical severing of the corpus callosum, the main route of communication between the cerebral hemispheres. The classical view of this syndrome asserts that conscious unity is abolished. The left hemisphere consciously experiences and functions independently of the right hemisphere. This view is a cornerstone of current consciousness research. In this review, we first discuss the evidence for the classical view. We then propose an alternative, the ‘conscious unity, split perception’ model. This model asserts that a split brain produces one conscious agent who experiences two parallel, unintegrated streams of information. In addition to changing our view of the split-brain phenomenon, this new model also poses a serious challenge for current dominant theories of consciousness.

Trends

Five hallmarks characterize the split-brain syndrome: a response × visual field interaction, strong hemispheric specialization, confabulations after left-hand actions, split attention, and the inability to compare stimuli across the midline.

These hallmarks underlie the classical notion that split brain implies split consciousness. This notion suggests that massive interhemispheric communication is necessary for conscious unity.

Closer examination challenges the classical notion. Either the hallmark also occurs in healthy adults or the hallmark does not hold up for all split-brain patients.

A re-evaluation of the split-brain data suggests a new model that might better account for the data. This model asserts that a split-brain patient is one conscious agent with unintegrated visual perception.

This new model challenges prominent theories of consciousness, since it implies that massive communication is not needed for conscious unity.

Keywords: global workspace; information integration theory; recurrent processing; split brain; unified consciousness

Fewer adolescents engaged in adult activities such as having sex, dating, drinking alcohol, working for pay, going out without their parents, & driving

Twenge, J. M. and Park, H. (2017), The Decline in Adult Activities Among U.S. Adolescents, 1976–2016. Child Dev. doi:10.1111/cdev.12930

Abstract: The social and historical contexts may influence the speed of development. In seven large, nationally representative surveys of U.S. adolescents 1976–2016 (N = 8.44 million, ages 13–19), fewer adolescents in recent years engaged in adult activities such as having sex, dating, drinking alcohol, working for pay, going out without their parents, and driving, suggesting a slow life strategy. Adult activities were less common when median income, life expectancy, college enrollment, and age at first birth were higher and family size and pathogen prevalence were lower, consistent with life history theory. The trends are unlikely to be due to homework and extracurricular time, which stayed steady or declined, and may or may not be linked to increased Internet use.

Contradicting effects of self-insight: Self-insight can conditionally contribute to increased depressive symptoms

Contradicting effects of self-insight: Self-insight can conditionally contribute to increased depressive symptoms. Miho Nakajima, Keisuke Takano, and Yoshihiko Tanno. Personality and Individual Differences, Volume 120, 1 January 2018, Pages 127–132, https://doi.org/10.1016/j.paid.2017.08.033

Highlights
•    Self-insight has been considered as a factor that enhances psychological adjustment.
•    However, we found that the adaptive effect of self-insight was conditional.
•    Self-insight with high negative self-complexity was related to increased depression.

Abstract: Past research has suggested that self-insight functions as a genuine factor to enhance psychological adjustment. However, because most of the previous studies had used a cross-sectional design, a prospective study was warranted to establish the temporal and causal relationship between self-insight and depressive symptoms. Another important issue was that there seems to be a moderator that influences the adaptive function of self-insight. Stein and Grant (2014) suggested that positive self-evaluation mediates the association between self-insight and well-being. This result could imply that self-insight does not lead to well-being with negative self-evaluation. In this study, therefore, we conducted a longitudinal questionnaire survey to examine the prospective effect of self-insight on future depressive symptoms with self-complexity as a putative moderator. A complete dataset of 93 Japanese undergraduates was analyzed. The prospective analysis showed a significant moderating role of negative self-complexity in the associations among self-insight, depressive symptoms, and stress; people with high self-insight and low negative self-complexity were less likely to be influenced by stressors, whereas those with high self-insight and high negative self-complexity showed significant increases in depressive symptoms after stressful experiences. These findings implicate that the adaptive effect of self-insight can be conditional depending on the extent of negative self-complexity.

Keywords: Self-insight; Self-complexity; Depressive symptoms

Sleep pressure after sleep deprivation in flies can be counteracted by raising their sexual arousal

Regulation of sleep homeostasis by sexual arousal. Esteban J Beckwith et al. eLife 2017;6:e27445 doi: 10.7554/eLife.27445

Abstract: In all animals, sleep pressure is under continuous tight regulation. It is universally accepted that this regulation arises from a two-process model, integrating both a circadian and a homeostatic controller. Here we explore the role of environmental social signals as a third, parallel controller of sleep homeostasis and sleep pressure. We show that, in Drosophila melanogaster males, sleep pressure after sleep deprivation can be counteracted by raising their sexual arousal, either by engaging the flies with prolonged courtship activity or merely by exposing them to female pheromones.

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Finally, to investigate whether mere sexual arousal is responsible for this effect, we used flies mutant in the TDC2 gene, that possess lower levels of tyramine and octopamine (Crocker and Sehgal, 2008) and were previously shown to court male as well as female flies (Huang et al., 2016). We hypothesised that if these flies are sexually aroused by both male and female partners, they should then respond with a suppression of sleep rebound to both conditions of social interaction. This was what we observed indeed (Figure 8D,E). In flies with a bi-sexual orientation, both MF and MM interaction lead to a strong suppression of sleep rebound.

[...] migratory birds and cetaceans were reported to have the ability to suppress sleep at certain important periods of their lives, namely during migration or immediately after giving birth (Fuchs et al., 2009; Lyamin et al., 2005; Rattenborg et al., 2004); flies, similarly, were shown to lack sleep rebound after starvation-induced sleep deprivation (Thimgan et al., 2010) or after induction of sleep deprivation through specific neuronal clusters (Seidner et al., 2015). Perhaps even more fitting with our findings is the observation that male pectoral sandpipers, a type of Arctic bird, can forego sleep in favour of courtship during the three weeks time window of female fertility (Lesku et al., 2012). It appears, therefore, that animals are able to balance sleep needs with other, various, biological drives. It would be interesting to see whether these drives act to suppress sleep through a common regulatory circuit. Rebound sleep has always been considered one of the most important features of sleep itself. Together with the reported death by sleep deprivation, it is frequently used in support of the hypothesis that sleep is not an accessory phenomenon but a basic need of the organism (Cirelli and Tononi, 2008). Understanding the regulation of rebound sleep, therefore, may be crucial to understanding the very function of sleep. Interestingly, in our paradigm rebound sleep is not postponed, but rather eliminated. Moreover, on rebound day, the sleep architecture of sexually aroused male flies does not seem to be affected: the sleep bout numbers appear to be similar to their mock control counterparts, while the length of sleep bouts is, if anything, slightly reduced (Figure 1 – figure supplement 1).

Do casual gaming environments evoke stereotype threat? Examining the effects of explicit priming and avatar gender

Do casual gaming environments evoke stereotype threat? Examining the effects of explicit priming and avatar gender. Linda K. Kaye. Charlotte R. Pennington, and Joseph J. McCann. Computers in Human Behavior, https://doi.org/10.1016/j.chb.2017.09.031

Highlights
•    Assessing stereotype threat in an under-explored domain.
•    Operationalising avatar gender as a subtle threat on gaming outcomes.
•    No evidence of stereotype threat effects on gaming performance.

Abstract: Despite relatively equal participation rates between females and males in casual gaming, females often report stigmatisation and prejudice towards their gaming competency within this sub-domain. Applying the theoretical framework of “stereotype threat”, this research examined the influence of explicit stereotype priming on females' casual gameplay performance and related attitudes. It also investigated whether the gender of the game avatar heightens susceptibility to stereotype threat. One hundred and twenty females were allocated randomly to one of four experimental conditions in a 2 (Condition: Stereotype threat, Control) x 2 (Avatar gender: Feminine, Masculine) between-subjects design. They completed a short gaming task and measures of social identity, competence beliefs, gameplay self-efficacy and self-esteem. Findings indicate that priming explicitly a negative gender-related stereotype did not appear to have a significant detrimental impact on gameplay performance or gameplay-related attitudes. Additionally, gameplay performance was not affected significantly by manipulating the gender of the gaming avatar. These findings suggest that, although females appear to be knowledgeable about negative gender-gaming stereotypes, these might not impact performance. Moreover, females tend not to endorse these beliefs as a true reflection of their gaming ability, representing a positive finding in view of the prevailing negative attitudes they face in gaming domains.

Keywords: Stereotype threat; Digital gaming; Competence; Self-concept; Gender; Avatars