Bodies in action: Do contractive and expansive postures facilitate adaptive behavior?

The present study investigated the effects of expansive and contractive body displays on adaptive behavior and affective outcomes. Addressing limitations in past research, the effects were investigated in two different contexts (i.e., fear context and sadness context), compared with two types of control conditions and the moderating effects of motivational traits and symptoms of psychopathology were accounted for. A sample of 186 adults completed a fear experiment involving a mock job interview and a sadness experiment involving sad mood induction. For each experiment, participants were randomly assigned to one of four body manipulations: (1) expansive; (2) contractive; (3) active control (i.e., running in place); or 4) passive control (i.e., doing nothing). The primary outcome was adaptive behavior (i.e., appropriate job-interview behavior and positive recall bias). Secondary affective outcomes were emotions, action tendencies, and appraisals. Results revealed small, non-significant effects of body displays on primary outcomes (ds = 0.19-0.28). For secondary outcomes, significant effects were identified for positive emotions (ds = 0.33). Across secondary outcomes, pairwise comparisons revealed that expansive displays led to more favorable outcomes than contractive displays. For participants with the highest levels of depression, body display conditions led to less favorable affective outcomes than control conditions. The results suggest that body displays do not influence adaptive behavior within the investigated contexts. When compared to contractive displays, expansive displays were found to yield more favorable affective changes. Lastly, the findings indicate that further investigations into body manipulations in the context of psychopathology are warranted.

"Show Me What You Got": The Nomological Network of the Ability to Pose Facial Emotion Expressions.

Just as receptive emotional abilities, productive emotional abilities are essential for social communication. Although individual differences in receptive emotional abilities, such as perceiving and recognizing emotions, are well-investigated, individual differences in productive emotional abilities, such as the ability to express emotions in the face, are largely neglected. Consequently, little is known about how emotion expression abilities fit in a nomological network of related abilities and typical behavior. We developed a multitask battery for measuring the ability to pose emotional expressions scored with facial expression recognition software. With three multivariate studies (n1 = 237; n2 = 141; n3 = 123), we test competing measurement models of emotion posing and relate this construct with other socio-emotional traits and cognitive abilities. We replicate the measurement model that includes a general factor of emotion posing, a nested task-specific factor, and emotion-specific factors. The emotion-posing ability factor is moderately to strongly related to receptive socio-emotional abilities, weakly related to general cognitive abilities, and weakly related to extraversion. This is strong evidence that emotion posing is a cognitive interpersonal ability. This new understanding of abilities in emotion communication opens a gateway for studying individual differences in social interaction.

Personalizing real-world problems: Posing own problems increases self-efficacy expectations, intrinsic value, attainment value, and utility value.

BACKGROUND: Real-world problems are important in math instruction, but they do not necessarily trigger students' task motivation. Personalizing real-world problems by (1) matching problems to students' shared living environment (context personalization) and (2) asking students to pose their own problems (active personalization) might be two interventions to increase students' task motivation. AIM: In the current study, we investigated the effects of context personalization and active personalization on students' self-efficacy expectations, intrinsic value, attainment value, utility value, and cost. SAMPLE: The participants were 28 fifth- and sixth-grade students who voluntarily took part in a six-month afterschool program in which they posed problems with the aim of creating a math walk in their hometown. METHOD: Using a within-subjects design, at the end of the afterschool program, the students rated their self-efficacy expectations and task values for four self-developed problems associated with their hometown, four peer-developed problems associated with their hometown, and four instructor-provided problems associated with unfamiliar locations. RESULTS: Students reported higher self-efficacy expectations, intrinsic value, attainment value, and utility value for active-personalized than non-personalized problems. To a lesser extent, context personalization promoted intrinsic value and attainment value. No effect was found for cost. CONCLUSIONS: Active personalization (i.e. asking students to pose their own real-world problems) is suited to enhance students' task motivation, specifically their self-efficacy expectations, intrinsic value, attainment value, and utility value. Context personalization still boosts students' intrinsic value and attainment value. Implementation in classroom instruction is discussed.

No Miracles in Two Minutes: A Randomized Controlled Study on the Impact of Preparatory Expansive Posing on Anesthesiology Residents' Performance in Mock Structured Oral Examinations.

Background: The objective of this study was to evaluate the impact of engaging in preparatory expansive posing on the performance of anesthesiology trainees during a mock structured oral examination. Methods: A total of 38 clinical residents at a single institution participated in this prospective randomized controlled study. Participants were stratified by clinical anesthesia year and randomly assigned to 1 of 2 orientation rooms to prepare for the examination. The preparatory expansive posing participants stood for 2 minutes with their hands and arms above their heads and with their feet approximately 1 ft apart. Conversely, the control participants sat quietly in a chair for 2 minutes. All participants then received the same orientation and examination. Faculty evaluation of resident performance, residents' self-assessment of performance, and anxiety score were collected. Results: There was no evidence to support our primary hypothesis that residents who engaged in preparatory expansive posing for 2 minutes prior to a mock structured oral examination would score higher than their control counterparts (P = .68). There was no evidence to support our secondary hypotheses that preparatory expansive posing increases self-assessment of one's performance (P = .31) or reduces perceived anxiety during a mock structured oral examination (P = .85). Conclusions: Preparatory expansive posing did not improve anesthesiology residents' mock structured oral examination performance or self-assessment of their performance, nor did it reduce their perceived anxiety. Preparatory expansive posing is likely not a useful technique in improving the performance of residents in structured oral examinations.

Paving the cowpath in research within pure mathematics: A medium level model based on text driven variations.

In this paper we show how simple text-driven variations of given statements in mathematics can lead to interesting new problems and push forward a whole theory around simple initial questions. We exemplify this in two cases. Case 1 deals with problem-posing activities suitable for pupils and case 2 is a rational reconstruction of the organisation of mathematical knowledge within problems of graph colorings. Mathematicians learn to systematically look for subsequent problems around a given problem. We argue that this toy-model captures a nontrivial part of professional mathematical research within the pure fields and conjecture that it even grasps high level developments in mathematics. By doing this, we implicitly encourage a very simplistic view on criteria, so to speak a "cowpath" approach to progress in mathematics. The term "cowpath" is borrowed from architecture and software design, where it is commonly used. While we can contemplate which pathways are ideal, we may also just plant grass and see where people choose to walk. Those pathways are also self-enforcing, since we are less hesitant to walk on those rather than criss-cross the landscape.

Investigating problem-posing during math walks in informal learning spaces.

Informal mathematics learning has been far less studied than informal science learning - but youth can experience and learn about mathematics in their homes and communities. "Math walks" where students learn about how mathematics appears in the world around them, and have the opportunity to create their own math walk stops in their communities, can be a particularly powerful approach to informal mathematics learning. This study implemented an explanatory sequential mixed-method research design to investigate the impact of problem-posing activities in the math walks program on high school students' mathematical outcomes. The program was implemented during the pandemic and was modified to an online program where students met with instructors via online meetings. The researchers analyzed students' problem-posing work, surveyed students' interest in mathematics before and after the program, and compared the complexity of self-generated problems in pre- and post-assessments and different learning activities in the program. The results of the study suggest that students posed more complex problems in free problem-posing activities than in semi-structured problem-posing. Students also posed more complex problems in the post-survey than in the pre-survey. Students' mathematical dispositions did not significantly change from the pre-survey to post-survey, but the qualitative analysis showed that they began thinking more deeply, asking questions, and connecting school content to real-world scenarios. This study provides evidence that the math walks program is an effective approach to informal mathematics learning. The program was successful in helping students develop problem-posing skills and connect mathematical concepts to the world around them. Overall, "math walks" provide a powerful opportunity for informal mathematics learning.

Creativity of Creativity Researchers: Invention of Problems and Experimental Objects to Study Thinking.

Invention of problem situations and experimental objects to study others' thinking is a special kind of creativity worthy of scientific interest. The objects are considered in terms of Latour's actor network theory (as nonhuman actants), cultural psychology (as cultural tools), and Gibson's theory of affordances (as meta-affordances). A fundamental problem of validity in studies of curiosity and exploration is discussed. The author's experience of inventions of exploratory objects to be experimented with is analyzed. An inter(trans)-disciplinary insight penetrating and integrating all levels of the work on an exploratory object is described. An example of participants' revealing of an object's unexpected faculties ("serendipities") undesirable from the experimenter's point of view is given. It is shown that an object designed to study thinking in one sample can be used in another sample with unexpected results. It is argued that automatic generation of problem posing-and-solving situations and exploratory objects, beginning from some levels of their novelty and complexity, is hardly possible because of fundamental limitations of "standard means to generate or score non-standard ends".

A Competition-Based Problem-Posing Approach for Nursing Training.

Conventional nursing teaching usually adopts one-way teaching approaches. As such, students cannot think deeply and engage in learning, which results in lower learning motivation and learning achievement. Several studies have indicated that problem-posing is a learning process that has students think about problems and actively construct knowledge, which helps their in-depth thinking and promotes their learning achievement. However, problem-posing is a task with a higher difficulty level; in particular, with insufficient learning motivation, it is not easy for students to pose in-depth questions. Therefore, the present study introduced competition to a problem-posing activity to facilitate students' motivation. This study adopted a quasi-experimental design and conducted an experiment in the unit of Care of Critically Ill Patients. The results showed that the proposed competition-based problem-posing mobile learning approach could significantly enhance students' learning achievement and learning motivation and would not cause an excessive cognitive load. Moreover, competition increased students' learning motivation, and fostered them to actively reflect on and revise their questions, thereby increasing their problem-posing quality and learning achievement. This study can serve as a reference for future clinical practice to enhance the quality and sustainability of apprenticeships.

Paulo Freire: Review of "The Pedagogy of the Oppressed" : 1st Edition, Penguin Random House UK, London, 2017.

Book review of "The Pedagogy of the Oppressed" by Paulo Freire.

Do you know your best side? Awareness of lateral posing asymmetries.

People tend to show the left cheek to broadly express emotions while they tend to show the right cheek to hide emotions because emotions were expressed more on the left than on the right side of the face. The present study investigated the level of awareness on the left- and right-cheek poses using the method of structural knowledge attributions. When asked to broadly express emotions for a family portrait, right-handed participants were more likely to show the left cheek than the right. On the other hand, when asked to conceal emotions to show a calm and reassuring attitude as a scientist, they were more likely to show the right cheek. After the posing session, participants selected the conscious level of their knowledge about posing from five categories: Random, intuition, familiarity, recollection, and rules. Most participants rated their knowledge as unconscious (i.e., either as random, intuition, or familiarity). The choice of the conscious level did not differ across posing orientations and posing instructions. These results suggest that although people do not have an acute awareness of their lateral posing preference, they reliably show one side of their faces to express or hide emotions.

Commentary on Elkjær et al.'s (2020) Meta-Analysis on Expansive Versus Contractive Nonverbal Displays.

We offer a critical perspective on the meta-analysis by Elkjær et al. (2020) by pointing out three constraints: The first refers to open-science practices, the second addresses the selection of studies, and the third offers a broader theoretical perspective. We argue that preregistration and adherence to the highest standards of conducting meta-analyses is important. Further, we identified several missing studies. Regarding the theoretical perspective, we suggest that it may be useful to tie body positions into the dominance-prestige framework and, on that basis, to distinguish two types of body positions. Such an approach has the potential to account for discrepancies in previous meta-analytical evidence regarding the effects of expansive versus contractive nonverbal displays. Future research may thus be able to provide not only methodological but also theoretical innovations to the field of body positions.

Inspecting the Mechanism of Fragment Hits Binding on SARS-CoV-2 Mpro by Using Supervised Molecular Dynamics (SuMD) Simulations.

Computational approaches supporting the early characterization of fragment molecular recognition mechanism represent a valuable complement to more expansive and low-throughput experimental techniques. In this retrospective study, we have investigated the geometric accuracy with which high-throughput supervised molecular dynamics simulations (HT-SuMD) can anticipate the experimental bound state for a set of 23 fragments targeting the SARS-CoV-2 main protease. Despite the encouraging results herein reported, in line with those previously described for other MD-based posing approaches, a high number of incorrect binding modes still complicate HT-SuMD routine application. To overcome this limitation, fragment pose stability has been investigated and integrated as part of our in-silico pipeline, allowing us to prioritize only the more reliable predictions.

Using bodily postures in the treatment of anorexia nervosa: Effects of power posing on interoception and affective states.

OBJECTIVE: Power posing involves the adoption of an expansive bodily posture. This study examined whether power posing could benefit individuals with anorexia nervosa (AN) and women with normal weight in regards to interoceptive ability and affective states. METHOD: Participants included 50 inpatients and outpatients with AN as well as 51 normal-weight women. Interoceptive accuracy (IAcc), measured by the heartbeat tracking task and interoceptive sensibility (IS), measured by confidence ratings, were assessed at baseline, after a single power posing session and after 1 week of daily training. Also, the short-term effects of power posing on subjective feelings of dominance, pleasantness, and arousal were investigated. RESULTS: Both groups increased in their IAcc after one power posing session. Also, there was a significant main effect of time on feelings of dominance and pleasantness in the short-term. Women with AN displayed lower levels of IS, dominance, and pleasantness as well as higher levels of arousal than women without AN. DISCUSSION: These findings suggest that power posing has the potential to increase IAcc, subjective feelings of power and pleasant affect in the short-term. Further research should investigate which mechanisms foster the effectiveness of this intervention to tailor it to the needs of women with AN.

Power posing for paranoia: A double-blind randomised controlled experimental test using virtual reality.

Paranoia is theorised to build upon feelings of inferior social rank. Power posing has been shown to increase feelings of power, and hence could reduce paranoia. One hundred participants with current paranoia and 50 individuals without paranoia were recruited. Using a double-blind randomised controlled experimental design, participants twice held powerful or neutral postures before entering neutral virtual reality social environments. In the paranoid sample, those who held a powerful pose did not significantly increase in feelings of power by the end of testing in comparison to controls (group difference = 0.67, C.I. = -1.12; 1.46; p = 0.098), or decrease in paranoia (group difference = -0.23, C.I. = -1.17; 0.72; p = 0.634). In the non-paranoid sample, there was a small significant increase in powerful feelings by the end of testing in the powerful group (group difference = 1.13, C.I. = 0.23; 2.02; p = 0.013), but no significant decrease in paranoia (group difference = -0.71, C.I. = -2.16; 0.74; p = 0.338). Paranoia status was not a modifier on the relationship between condition and feelings of power. We conclude that power posing results in only very small changes in self-reported feelings of power and has no subsequent effect on paranoia.

Spatial profiles of perfluoroalkyl substances and mercury in fish from northern Lake Victoria, East Africa.

There is an acute deficit of data on per- and polyfluoroalkyl substances (PFASs) and mercury (Hg) in the open waters of Lake Victoria, East Africa, relative to nearshore areas. We analyzed stable isotopes (δ15N and δ13C), PFASs and Hg in Nile Perch and Nile Tilapia muscle and liver samples from nearshore and open lake locations from the Ugandan part of the lake. The δ15N values of Nile Perch muscle indicated a higher trophic level for samples from the open lake than from nearshore locations. Averages of ∑PFAS concentrations in Nile Perch muscle and liver (0.44 and 1.75 ng/g ww, respectively) were significantly higher than in Nile Tilapia (0.24 and 0.50 ng/g ww, respectively). ∑PFAS concentrations in muscle of open lake Nile Perch were significantly higher than for nearshore samples. A similar observation was made for total mercury concentrations in muscle (THg_Muscle) of Nile Perch. THg was dominated by methyl mercury (MeHg+, 22-124 ng/g ww) and mercuric mercury (Hg2+,

The influence of power posing on cardiac vagal activity.

The effects of power posing on hormonal reactions such as testosterone and cortisol have been widely investigated, however, its effects on the autonomic nervous system are rather unknown. Consequently, the aim of this study was to investigate the influence of power posing on cardiac vagal activity (CVA), as indexed by heart rate variability. It was hypothesized that high power poses (HPP) would increase CVA, whereas low power poses (LPP) would decrease CVA, given power posing is expected to decrease stress. Participants (N = 56) performed a total of four power poses, a combination of two power conditions (high vs. low) and two body positions (sitting vs. standing) for 1 min each, in a randomized order. In addition, for each power pose participants were given a role description. Contrary to our hypothesis, CVA decreased significantly during HPP in comparison to the resting measures before and after HPP, and CVA did not change during LPP. Moreover, while holding the power pose, CVA was higher in the LPP than in the HPP condition. Regarding subjective measures our hypotheses were confirmed, felt power was significantly higher after HPP than after LPP. Additionally, perceived stress was higher after LPP than after HPP. Taken together, these results suggest that the immediate impact of PP on the autonomic nervous system is more likely to influence a higher state of activation within the body instead of increasing resources to cope with stress as indexed by CVA, which may be seen only on a more long-term basis.

The big warm smile of cheaters: lateral posing biases and emotional expressions in displaying facial trustworthiness.

Cheater detection, which is a prerequisite for the evolution of social cooperation, has been successfully simulated in laboratory settings. However, the process has not been perfect because the detection rate has usually been just above chance. The present study investigated the role of lateral posing biases and emotional expressions in displaying trustworthiness, which plays a crucial role in cheater detection. Participants (N = 30 and 28 in Experiments 1 and 2, respectively) observed facial photographs of cheaters and cooperators in an economic game and evaluated their facial expressions in terms of emotional valence and arousal. The models in the photographs had turned their left or right cheek to the camera to display their trustworthiness in the economic game. The results indicated that cheaters showing their left cheek were rated as more emotionally positive than cheaters showing their right cheek. This lateral difference was not observed for cooperators. A left cheek advantage in emotional arousal was found for both cheaters and cooperators. These results suggest that cheaters use a fake smile on the emotional side of their face (i.e., the left) to conceal their uncooperative attitude.

Faces of glory: the left-cheek posing bias for medallists of Brazilian jiu-jitsu competitions.

Laboratory studies have shown that people tend to show the left side of their face when asked to broadly express emotions, while they tend to show the right side when asked to hide emotions. Because emotions are expressed more intensely in the left side of the face, it is hypothesized that an individual's intention to express or hide emotions biases the direction of lateral facial poses. The present study tested this hypothesis using photographic portraits of individuals experiencing emotional events in a naturalistic setting: the reception of medals in Brazilian jiu-jitsu competitions. Portrait photographs of Brazilian jiu-jitsu competitors were sourced online (N = 460) and were rated by two independent raters in terms of posing direction, emotional expression, and medal colour. Gold and silver medallists showed their left cheeks to the camera for commemorative photographs taken immediately after the medal ceremony. Positive emotions were expressed more often for gold medallists than silver ones. The left-cheek posing bias observed in the present study supports the hypothesis that the intended purpose of expressing or hiding emotions determines the direction of lateral posing biases, and extends the laboratory findings to situations in the real world.

Left wings to the left: Posing and perceived political orientation.

Images of individuals posing with the left cheek toward the camera are rated as more emotionally expressive than images with the right cheek toward the camera, which is theorized to be due to right hemisphere specialization for emotion processing. Liberals are stereotyped as being more emotional than conservatives. In the present study, we presented images of people displaying either leftward or rightward posing biases in an online task, and asked participants to rate people's perceived political orientation. Participants rated individuals portrayed with a leftward posing bias as significantly more liberal than those presented with a rightward bias. These findings support the idea that posing direction is related to perceived emotionality of an individual, and that liberals are stereotyped as more emotional than conservatives. Our results differ from those of a previous study, which found conservative politicians are more often portrayed with a leftward posing bias, suggesting differences between posing output for political parties and perceived political orientation. Future research should investigate this effect in other countries, and the effect of posing bias on perceptions of politicians.

Presenting Your Best Self(ie): The Influence of Gender on Vertical Orientation of Selfies on Tinder.

When taking a self-portrait or "selfie" to display in an online dating profile, individuals may intuitively manipulate the vertical camera angle to embody how they want to be perceived by the opposite sex. Concepts from evolutionary psychology and grounded cognition suggest that this manipulation can provide cues of physical height and impressions of power to the viewer which are qualities found to influence mate-selection. We predicted that men would orient selfies more often from below to appear taller (i.e., more powerful) than the viewer, and women, from an above perspective to appear shorter (i.e., less powerful). A content analysis was conducted which coded the vertical orientation of 557 selfies from profile pictures on the popular mobile dating application, Tinder. In general, selfies were commonly used by both men (54%) and women (90%). Consistent with our predictions, a gender difference emerged; men's selfies were angled significantly more often from below, whereas women's were angled more often from above. Our findings suggest that selfies presented in a mate-attraction context are intuitively or perhaps consciously selected to adhere to ideal mate qualities. Further discussion proposes that biological or individual differences may also facilitate vertical compositions of selfies.