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1.
A social neuroscience perspective on adolescent risk-taking   总被引:7,自引:2,他引:5  
This article proposes a framework for theory and research on risk-taking that is informed by developmental neuroscience. Two fundamental questions motivate this review. First, why does risk-taking increase between childhood and adolescence? Second, why does risk-taking decline between adolescence and adulthood? Risk-taking increases between childhood and adolescence as a result of changes around the time of puberty in the brain’s socio-emotional system leading to increased reward-seeking, especially in the presence of peers, fueled mainly by a dramatic remodeling of the brain’s dopaminergic system. Risk-taking declines between adolescence and adulthood because of changes in the brain’s cognitive control system—changes which improve individuals’ capacity for self-regulation. These changes occur across adolescence and young adulthood and are seen in structural and functional changes within the prefrontal cortex and its connections to other brain regions. The differing timetables of these changes make mid-adolescence a time of heightened vulnerability to risky and reckless behavior.  相似文献   

2.
We hypothesize that people at risk of exclusion from groups will engage in actions that can socially reconnect them with others and test the hypothesis in four studies. We show that participants at risk of exclusion reciprocated the behavior of an unknown person (Study 1a) and a potential excluder (Study 1b) more compared to two control groups (people who received a non-social negative feedback and people who were actually excluded). Study 2 replicated the results of Study 1a with trust as the dependent variable. Study 3 showed that people who were at risk of exclusion took less general risk compared with both control groups. These results demonstrate socially adaptive responses of people who are at risk of social exclusion.  相似文献   

3.
Previous research highlighted gaps between socio-cognitive factors (e.g., intentions, social norms) and physical activity (PA) participation. Recently, researchers have asserted that considering affective processes may help bridge this gap. Leveraging the affective-reflective theory of physical inactivity and exercise, this study examined whether individuals’ attraction toward PA moderated the relationship between PA intentions and behaviors, and the relationship between social norms and PA intentions. Analysis of online survey data (NT1 = 582; NT2 = 327) provided evidence that social norms more strongly predicted PA intentions under conditions of lower attraction to PA. However, the results differed depending on how intentions were measured: Moderation was found for intention strength as the outcome, but no moderation was found for decisional intention as the outcome. The intentions-behavior relationship, despite nonsignificant interaction terms, showed patterns of positive moderation based on changes in simple slopes: Intentions more strongly predicted PA behavior at time 2 under conditions of higher attraction to PA. The findings align with recent theorizing that emphasizes the role of affect-related determinants when understanding and promoting PA. Practically, these results suggest that intervention strategies should differ according to the individuals’ current levels of attraction toward PA.  相似文献   

4.
Handwashing is widely considered the most effective method of preventing the spread of infectious illness. Exploring the determinants of handwashing is vital to the development of interventions to increase this behaviour. A survey based on Social Norms Theory assessed handwashing frequency and perceptions of peer handwashing in 255 university students. Participants reported their own handwashing frequency, and how often they thought their peers washed their hands in particular circumstances, to determine whether misperceptions around handwashing exist, and whether these influence the behaviour of individuals. Gender was found to be a significant determinant of handwashing frequency as females reported washing their hands significantly more often than males. Participants also believed they washed their hands significantly more frequently than their peers. Perceived peer handwashing frequency was significantly correlated with participants’ own behaviour. This effect was seen in overall handwashing and in food, waste and illness-related hand washing. These results suggest perceived social norms around hand washing have a clear association with individual behaviour. Future research might test the effectiveness of a social norms intervention in other settings which carry an increased risk of infection spread.  相似文献   

5.
The structural approach on social representations is known for the development of central core theory and its similarity with cognition-oriented sociopsychological perspectives, which has been a target of criticism. The approach has difficulty in dealing with the social dimension of knowledge and adopts a static notion of structure. Acknowledging those shortcomings, we present a revised structural conceptual model of social knowledge and social representations based on the consideration of normative and social identity processes, compatible with contributions of authors external to the classical structural approach, such as Wagner (holomorphy) and Lahlou (propagation model). After redefining the concepts of cognem and structure, we tackle thinking processes and the differences between personal and social representations, conceiving the latter as conventional codes linked to groups. Limitations of the perspective are discussed and research directions are indicated based on an understanding of structure that is broader than the one adopted by the classical approach.  相似文献   

6.
Growing evidence in the field of child labour has identified social norms among the key antecedents. Social norms regulate actions of people within the social order. Where social norms are institutionalized and legitimized, people conform to them out of a sense of duty. It is argued that legitimate, deep-rooted, and institutionalized social norms are difficult to change. Yet, there have been some significant improvements in research suggesting that normative change programs can effectively shift deep-rooted social norms. In this study, we explored a pathway to change social norms that underpin child labour practices in four major hubs of cocoa and sea fishing. We employed a bottom-up practice research approach to co-design the study, and implemented it through narrative vignette interviews. Using vignette stimulus, we interviewed parents (n = 40), with 20 of them perceived to have engaged their children in child labour, and stakeholders in the communities (n = 10). Findings from the narrative interviews revealed norms on informal apprenticeship, inheriting family business, and hard work, among the core child labour norms. We unraveled the constitutive procedural norms that legitimize and justify the child labour norms in the communities. Based on this, a normative change framework has been designed and supported with suggested intervention programs to shift the social norms.  相似文献   

7.
Dual-processing theories of reasoning have gained renewed attention in recent years, particularly in the fields of decision-making under uncertainty, learning, and social judgment. Although the various accounts differ, the common thread is the distinction between two qualitatively different reasoning processes, such as automatic/controlled, fast/slow, and unconscious/conscious. Accordingly, much research is focused on elucidating the nature of the two processes in terms of the kinds of information they process and respond to. Less extensive are attempts to identify mediators that underlie changes between the two reasoning strategies. We argue that nonlinear dynamical systems theory may be able to provide a fresh perspective on reasoning. Nonlinear dynamical systems theory allows us to shift the perspective to the dynamic interactions and transitions among continuous yet qualitatively different reasoning processes. We apply the approach to reasoning in decision-making and judgment under uncertainty. Our primary claim is that using different reasoning strategies is better understood as phase transitions among a landscape of continuous reasoning capacities.  相似文献   

8.
Objective: The purpose of this study was to explore the associations between meaning making and psychological adjustment in 127 women who experienced a miscarriage.

Design: A longitudinal and controlled study design was employed.

Main outcome measures: Meaning-making variables and distress outcomes were examined at four, seven and 16?weeks after miscarriage, in two groups of women, one who had medical investigations of the cause of their loss, and a control group receiving standard care.

Results: Search for meaning was very common and it declined with time after miscarriage. By seven weeks post-loss, more than half the women reported that they had found meaning/understood why the miscarriage happened. Providing information about the cause of the loss was associated with finding meaning. A decline in the search for meaning and finding meaning at seven weeks post-miscarriage, predicted levels of distress at 16?weeks, whilst controlling for the initial distress and for significant background factors.

Conclusions: This study provides support for the notion that search for meaning is very common following negative life events, such as miscarriage, and that finding meaning is important in many peoples’ process of adjustment. Providing information about the cause of the loss facilitates finding meaning.  相似文献   

9.
Four studies (N = 643) supported the hypothesis that social exclusion would reduce the global perception of life as meaningful. Social exclusion was manipulated experimentally by having a confederate refuse to meet participants after seeing their videotaped introduction (Study 1) and by ostracizing participants in a computerized ball-tossing game (Study 2). Compared to control condition and acceptance conditions, social exclusion led to perceiving life as less meaningful. Exclusion was also operationalized as self-reported loneliness, which was a better predictor of low meaning than other potent variables (Study 3). Study 4 found support for Baumeister’s model of meaning (1991), by demonstrating that the effect of exclusion on meaning was mediated by purpose, value, and positive self-worth.  相似文献   

10.
This study examined the relationship between meaning and sources of meaning among a sample of South African university students (N = 139; female = 44 0.6%; mean age = 19.76, SD = 1.82). The students completed the Purpose in Life (PIL), the Sources of Meaning Profile-Revised (SOMP-R) measures, and naïve sketches. Results from the data analysis using correlational and regression analyses indicate the students’ purpose of life scores are accounted for by sources of meaning related to self-transcendence, collectivism, and individualism. The findings from the qualitative analysis highlights the importance of an individualist and collectivist focus during academic studies as a source of meaning. Students who report a more extensive network of meaningful sources are also more likely to indicate higher scores on purpose in life.  相似文献   

11.
12.
This article introduces a new qualitative–quantitative approach to assess meaning of life. The participants described their sources of meaning and how they were interconnected. Four quantitative measures for (1) the accessibility of meaning-related knowledge, the degree of (2) differentiation and (3) elaboration of personal meaning systems, and (4) their coherence were calculated. The sample consisted of 59 theology and science students. The study tested (a) whether the structural properties of personal meaning systems predicted health and well-being, and (b) reflected different degrees of expertise in constructing meaning. Differentiation, elaboration, and coherence measures correlated with health and well-being and predicted life satisfaction. Theology students presented more differentiated, elaborated, and coherent personal meaning systems than science students. Both results indicate that assessing structural properties of personal meaning systems can be a promising new approach to measure meaning of life.  相似文献   

13.
This study explored the effects of group norms, intra-group position, and age on the direct and indirect aggressive intentions of 247 children (aged 5.50 to 11.83 years). Participants were assigned to a team, with team norms (aggression vs. helping) and the child's position within the team (prototypical vs. peripheral–prototypical vs. peripheral) manipulated. Results showed that children in the aggressive norm condition reported greater aggressive intentions than those in the helping norm condition, although, when age was considered, this effect remained evident for younger, but not older, children. Similarly, intra-group position influenced the aggressive intentions of younger children only. For these children, when group norms supported aggression, prototypical members and peripheral members who anticipated a future prototypical position reported greater aggressive intentions than peripheral members who were given no information about their future position. The implications of these findings for understanding childhood aggression, and for intervention, are discussed.  相似文献   

14.
Nostalgia increases meaning in life (MIL), but how so? In four experiments—using varied operationalizations of nostalgia, diverse populations, and complementary methodologies—we identified a serial process. We hypothesized and found, in Experiment 1, that self-continuity boosts MIL. We hypothesized and found, in Experiment 2, that nostalgia increases MIL through self-continuity. Finally, we hypothesized and found, in Experiments 3–4, that nostalgia fosters social connectedness, which plausibly heightens self-continuity, which in turn strengthens MIL. The findings clarify an intricate pathway through which nostalgia renders life more meaningful.  相似文献   

15.
Prenatal testosterone has important effects on brain organization and future behavior. The second-to-fourth digit length ratio (2D:4D), a proxy of prenatal testosterone exposure, has been linked to a wide variety of sexually differentiated dispositions and behaviors. We examine the relationship between digit length ratios (2D:4D and rel2, the length of the second finger relative to the sum of the lengths of all four fingers) and risk-taking behaviors across five domains: financial, social, recreational, ethical, and health. In a sub-sample of male Caucasians (ethnically homogeneous), lower rel2 was predictive of greater financial, social, and recreational risk-taking, whereas lower 2D:4D was predictive of greater risk-taking in two domains (social and recreational). In the full male sub-sample (ethnically heterogeneous), the only significant correlation was a negative association between 2D:4D and financial risk. A composite measure of risk-taking across all five domains revealed that both rel2 and 2D:4D were negatively correlated with overall risk-taking in both male sub-samples. No significant correlations were found in the female sub-samples. Finally, men were more risk-seeking than women across all five contexts.  相似文献   

16.
The memory-strengthening manipulations of increased presentation duration and increased number of times items were presented were manipulated in the memory conjunction paradigm. Participants viewed parent words once or three times during the study portion of the experiment for 250 ms, 1000 ms, or 3000 ms. After an old/new recognition test participants were asked to give explanations for their answers from the recognition test. The results of true and false recognition as well as recall-to-reject responses (e.g., I know I did not see blackbird since I saw blackmail) indicated that both familiarity and recollection were influenced by the memory-strengthening manipulations. The results provide evidence for dual-process theories of recognition memory and the opposing processes of familiarity and recollection.  相似文献   

17.
In the memory conjunction paradigm, the number of times that constituents of conjunction lures were studied and the method of presentation were varied. In two experiments, participants were presented with eight parent items that could be recombined at test to form a conjunction lure. The constituents that were shared between the parent items and the conjunction lures were either presented in the same words (e.g., blackmail and jailbird presented four times each for the conjunction lure blackbird) or in different words (e.g., the targets footstool, footlocker, foothill, footbridge, baseball, softball, basketball, and golfball for the conjunction lure football). In both experiments, rates of false recognition were higher in the Different condition as opposed to the Same condition. These results provide evidence that participants in the Same condition were able to utilise a recall-to-reject strategy by remembering the repeatedly presented parent word. In the Different condition, participants were not able to utilise that strategy and instead relied on the familiarity of the repeatedly presented constituents which led to higher rates of false recognition.  相似文献   

18.
Theory and research suggests that cultural norms for appearance present unrealistic standards of beauty which may contribute to women's body dissatisfaction. In Study 1, women described their appearance more negatively than men and made more upward social comparisons about their bodies, but not about other domains. Women also compared more than men with unrealistic targets (e.g., models). In Study 2, we explored the role of cultural norms for appearance in social comparisons with relevant (peer) or irrelevant (model) superior targets. When cultural norms were not salient, participants judged a peer to be more relevant, compared more with the peer, and were more negatively affected by the peer. However, when cultural norms were salient, participants judged a professional model to be equally relevant, compared more with the model and felt worse after exposure to the model. We discuss the powerful role of cultural norms in determining social comparison processes and self-appraisals.  相似文献   

19.
Authenticity predicts greater presence of meaning in life, in general (between-persons) and in the moment (within-persons). However, little is known about whether authenticity predicts negative aspects of life meaning, such as struggles with ultimate meaning. Across three studies (total N = 719), two of which used daily diaries (daily reports = 1,980), correlations, confirmatory factor analyses, and multilevel path models together showed that higher levels of authenticity related positively to presence of meaning and negatively to struggle with ultimate meaning at the between- and within-person levels. These findings are consistent with humanistic, existential, and positive psychology theories of authenticity and meaning and raise the possibility that increasing authenticity states over time may predict sustained improvement in multiple aspects of meaning.  相似文献   

20.
Abstract: This paper points to the problem caused by the fact that numerous academic ‘Jung studies’ are conducted on the basis of the English translation of Jung's works without any knowledge of his original texts and illustrates it with the misconstrual that Jung's concept of synchronicity suffered in the studies of many recent authors, as exemplified by two articles in the September 2011 issue of the JAP. The translation of ‘sinngemäße Koinzidenz’ as ‘meaningful coincidence’ seduced those writers to take synchronistic ‘meaning’ as meaning the meaningfulness of life or even as ‘transcendent meaning’, which is incompatible with Jung's synchronicity concept, and to replace Jung's strictly intellectual project of establishing an explanatory principle for synchronistic events (in addition to the principle of causality for all other events) by the fundamentally different project of focusing on the impact that such events may have for the experiencing subjective mind, on ‘human meaning‐making’, and, with a decidedly anti‐intellectual bias, of hoping for ‘shifts into non‐rational states of mind’.  相似文献   

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