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The paper examines how digital technology mediates the behaviour of consumers in three online systems that facilitate offline gift giving and sharing (Freecycle, Couchsurfing, and Landshare). Findings derived from a netnography and depth interviews reveal how technology is used to enact and influence the management of identity, partner selection, ritual normalisation, and negotiation of property rights. The findings have significant implications for the design and management of systems that encourage non‐monetary forms of collaborative consumption. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
103.
Harvey Peskin 《The International journal of psycho-analysis》2017,98(2):473-489
It is likely that under the impact of impending Nazism, aggression theory in late Freud, as presented in Civilization and its Discontents (1930), left the entirety of guilt to self‐punishment, thus retracting his view that love functions in the superego as remorse and restitution. This change however, essentially withdraws provision for treating victims of abuse, violence and terror. This paper proposes a paradigm shift that reframes Freud's late instinct theory into a theory of dehumanization by recovering reparative and relational components of guilt. This reframe has major implications for the position taken with regard to the role of witnessing and the moral imperative in recovery from dehumanizing experience, which orthodox psychoanalytic theory has essentially bypassed. It is propose that victim treatment, as case examples illustrate, reformulates guilt as drawing on the life instincts to revivify victims’ humanity through analytic witnessing and acknowledgment. Indeed, unless breaches of humanity are confronted by a witness, the life instincts stay merely rhetorical, if not contradictory, by leaving the death instincts to grow unseen and, thus, unopposed. A two‐fold formulation of guilt may better address and redress disorders of dehumanization, whereby ‘death guilt’ (under the sway of aggression) signifies the orthodox, irrevocable guilt of self‐reproach for the bad we may have done, and ‘life guilt’ (under the sway of a moral imperative) the redeemable guilt for the good we have still to do. 相似文献
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In the current research, we sought to examine the role of spatial frequency on the detection of threat using a speeded visual search paradigm. Participants searched for threat-relevant (snakes or spiders) or non-threat-relevant (frogs or cockroaches) targets in an array of neutral (flowers or mushrooms) distracters, and we measured search performance with images filtered to contain different levels (high and low) of spatial frequency information. The results replicate previous work demonstrating more rapid detection of threatening versus non-threatening stimuli [e.g. LoBue, V. & DeLoache, J. S. (2008). Detecting the snake in the grass: Attention to fear-relevant stimuli by adults and young children. Psychological Science, 19, 284–289. doi:10.1111/j.1467-9280.2008.02081.x]. Most importantly, the results suggest that low spatial frequency or relatively coarse levels of visual information is sufficient for the rapid and accurate detection of threatening stimuli. Furthermore, the results also suggest that visual similarity between the stimuli used in the search tasks plays a significant role in speeded detection. The results are discussed in terms of the theoretical implications for the rapid detection of threat and methodological implications for properly accounting for similarity between the stimuli in visual search studies. 相似文献
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The present study investigated the impact of sleep deprivation on several aspects of affective functioning in healthy participants selected from three different developmental periods: early adolescence (ages 10-13), midadolescence (ages 13-16), and adulthood (ages 30-60). Participants completed an affective functioning battery under conditions of sleep deprivation (a maximum of 6.5 hours total sleep time on the first night followed by a maximum of 2 hours total sleep time on the second night) and rest (approximately 7-8 hours total sleep time each night for two consecutive nights). Less positive affect was observed in the sleep-deprived, compared to rested, condition. This effect held for 9 of the 12 positive affect items on the PANAS-C. Participants also reported a greater increase in anxiety during a catastrophizing task and rated the likelihood of potential catastrophes as higher when sleep deprived, relative to when rested. Early adolescents appraised their main worry as more threatening when sleep deprived, relative to when rested. These results support and extend previous research underscoring the adverse affective consequences of sleep deprivation. 相似文献
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McClure MM Barch DM Flory JD Harvey PD Siever LJ 《Journal of abnormal psychology》2008,117(2):342-354
Working memory abnormalities, which are particularly pronounced on context processing tasks, appear relatively specific to schizophrenia spectrum illnesses compared with other psychotic disorders. However, the specificity of context processing deficits to schizotypal personality disorder (SPD), a prototype of schizophrenia, has not been studied. The authors administered 3 versions of the modified AX Continuous Performance Test and an N-back working memory test to 63 individuals with SPD and 25 with other personality disorders, as well as 42 healthy controls. For the AX Continuous Performance Test standard and degraded versions, there was a significant Trial Type x Delay x Group interaction, as SPDs made significantly more errors reflecting poor maintenance of context and fewer errors reflecting good maintenance of context. SPDs also demonstrated poor performance on the N-back, especially at the 2-back condition. Context processing errors and N-back accuracy scores were related to disorganization symptoms. These findings, which are quite similar to those previously reported in patients with schizophrenia, suggest that context processing deficits are specific to the schizophrenia spectrum and are not a reflection of overall psychopathology. 相似文献
109.
Research and treatment have traditionally adopted a 'disorder-focused' approach by targeting one specific disorder, aiming to understanding its cause, maintenance and treatment. The aim of the present study was to contribute to the burgeoning interest in examining common, or 'transdiagnostic,' processes across disorders. Three candidate transdiagnostic processes involved in emotion regulation - rumination, worry, and automatic negative thoughts - were examined in euthymic bipolar I disorder (n=21) and insomnia (n=19), and a non-clinical control group (n=20). Rumination and worry were endorsed to a larger degree by the bipolar and insomnia groups compared to the control group. However, while the bipolar group had more negative automatic thoughts than the control group, there were no significant differences in negative automatic thoughts between the bipolar and insomnia groups or the insomnia and control groups. These results suggested that rumination and worry, but not negative automatic thoughts, might be common across bipolar disorder and insomnia. However, these findings no longer remained significant when current symptoms of anxiety and depression were controlled for. Prospective and experimental studies are needed to test the extent to which these processes contribute to the etiology or maintenance of insomnia and bipolar disorder. 相似文献
110.