Does a Tired Mind Help Avoid a Decision Bias? The Effect of Ego Depletion on Escalation of Commitment

In this research, we investigated the effect of ego depletion on escalation of commitment. Specifically, we conducted two laboratory experiments and obtained evidence that ego depletion decreases escalation of commitment. In Study 1, we found that individuals were less susceptible to escalation of commitment after completing an ego depletion task. In Study 2, we confirmed the effect observed in Study 1 using a different manipulation of ego depletion and a different subject pool. Contrary to the fundamental assumption of bounded rationality that people have a tendency to make decision errors when mental resources are scarce, the findings of this research show that a tired mind can help reduce escalation bias.     

The Role of Hope in Preventive Interventions

Preventive interventions have historically focused on reducing risk factors for psychological difficulties. Recent research has found that prevention programs are more effective when they enhance strengths, rather than merely reduce risk factors. An increased focus on strengths is consistent with a positive psychology perspective. In fact, hope has been found to be a central human strength in the positive psychology literature. Hope is associated with better adjustment, lower anxiety, lower depression, greater academic performance, and greater athletic achievement. In addition, individuals with high hope are able to respond more adaptively after traumatic events and physical illnesses. Intervention studies have shown that hope can be increased in individuals, and hope has been shown to predict more positive outcomes in psychotherapy. Future directions for research are outlined, including investigating hope as a preventive intervention for members of stigmatized groups, including ethnic minorities and lesbian, gay, and bisexual individuals.     

Diversity and unity of modularity

Since the publication of Fodor's (1983) The Modularity of Mind, there have been quite a few discussions of cognitive modularity among cognitive scientists. Generally, in those discussions, modularity means a property of specialized cognitive processes or a domain-specific body of information. In actuality, scholars understand modularity in many different ways. Different characterizations of modularity and modules were proposed and discussed, but they created misunderstanding and confusion. In this article, I classified and analyzed different approaches to modularity and argued for the unity of modularity. Modularity is a multidimensional property consisting of features from several dimensions specifying different aspects of cognition. Among those, there are core features of modularity, and these core features form a cross-dimensional unity. Despite the diverse and liberal characterizations, modularity contributes to cognitive science because of the unity of the core features.     

Electromechanical behavior of single-walled carbon nanotube thin films

Carbon nanotubes have been intensively studied owing to their great potential in nanoelectronics and nanomechanical devices. Recently, experimental results have shown that single-walled carbon nanotubes (SWCNTs) change their electronic properties when subjected to strain. In this study, the electromechanical characteristics of SWCNT networks were investigated for the application of printable strain sensors on flexible substrates. SWCNT films were formed on plastic substrates of poly(ethylene terephthalate) using a spray process. In this manner, we were able to control the transparency and obtain uniform electrical properties of the films. The films are isotropic on account of the random orientation of bundles of SWCNTs. Experimental results showed a nearly linear change in the resistance across a film when it was subjected to tensile strain, even in the inelastic range of the flexible substrate. The results demonstrate the potential use of SWCNT films for highly sensitive printable strain sensors on a macroscale.     

Nostalgia's fulfillment of agentic and communal needs: How different types of self‐concepts shape consumer attitudes toward nostalgia

This research investigates how consumers' different types of self‐concepts (agentic vs. communal) shape their attitudes toward nostalgia. Experiment 1, using a two (self‐concept: agentic vs. communal) by two (nostalgia: nostalgic vs. non‐nostalgic) between‐subjects design and a series of multivariate analysis of variance and Hayes's PROCESS Model 8, showed that agentic and communal participants' preference was not increased in the non‐nostalgic condition but was increased in the nostalgic condition. Self‐concept indirectly influenced participants' preference for the nostalgic product through different functions of nostalgia; Agentic participants' likelihood of buying a nostalgic product and recommending it to others increased through enhanced self‐positivity, whereas communal participants' likelihood of buying a nostalgic product and recommending it to others increased through enhanced social connectedness. In Experiment 2, these results were replicated in the context of a public education campaign, and participants' chronic self‐concepts were measured. Participants with different chronic self‐concept tendencies were randomly assigned to nostalgic or non‐nostalgic conditions and were asked to indicate their attitudes toward the campaign. As in Experiment 1, a series of regression and Hayes' PROCESS Model 8 revealed that agentic and communal participants' attitudes were not enhanced in the non‐nostalgic condition but were enhanced in the nostalgic condition. Agentic (communal) individuals' favorability toward the nostalgic message about advocacy increased through enhanced self‐positivity (social connectedness). It appears that consumers with different self‐concepts (agentic vs. communal) experience enhanced feelings relevant to their self‐concepts (self‐positivity vs. social connectedness) when presented with nostalgic appeals for an object, and these heightened feelings drive an increased preference for it. Copyright © 2016 John Wiley & Sons, Ltd.     

Reaching Across the DMZ: Identity Uncertainty and Reunification on the Korean Peninsula

Drawing on uncertainty‐identity theory (Hogg, 2012), we explore the effects of uncertainty concerning a specific social identity on group identification and attitudes toward subgroup integration and separation in South Koreans' nested identity context (N = 148). All variables were measured. Path analysis revealed, as predicted, that superordinate identity uncertainty weakened superordinate identification and subgroup identity uncertainty weakened subgroup identification. We also found that subgroup identity uncertainty strengthened superordinate identification. This effect was stronger for those who perceived their superordinate group prototype and subgroup prototype to be distinct and nonoverlapping. Furthermore, superordinate identity uncertainty decreased reunification intentions by weakening superordinate identification. Subgroup identity uncertainty increased reunification intentions by strengthening superordinate identification only for those who perceived their superordinate group prototype and subgroup prototype to be distinct and nonoverlapping. Implications for uncertainty identity theory and intergroup relations are discussed.     

Music's Effect on Exercise Participants by Exercise Session

We identified exercise participants’ music preferences in three exercise sessions and clarified how preferred or randomly assigned music affects perceived psychological helpfulness of exercise. There were 292 fitness center members in Korea who were selected as participants. Participants’ preferred music was assessed using frequency analysis and participants were grouped by preferences. Similar percentages were observed for sedative (45.2%) and stimulative (54.8%) music during warm-up, whereas participants preferred stimulative (91.4%) and sedative (75.7%) music during workout and cooldown, respectively. During the warm-up session, sedative music was found to be more psychologically helpful for the sedative music preferred group (t = 4.86, p <.001), whereas stimulative music was found to be significantly more psychologically helpful than sedative music for the stimulative music–preferred group (t = –6.47, p <.001). During the workout sessions, the sedative music was found to be more helpful for the sedative music–preferred group, albeit with no statistical difference from stimulative music, whereas the stimulative music had similar effects to the warm-up session (t = ?18.37, p <.001). Finally, during the cool-down sessions, sedative music was found to be more psychologically helpful for the sedative music­–preferred group (t = 7.97, p <.001), whereas stimulative music was found to be more psychologically helpful to the stimulative music–preferred group (t = ?2.10, p <.05). The results of this study provide basic information for music usage in health management centers and other interested organizations to improve physical activity.     

Rumination and dysphoria: The buffering role of adaptive forms of humor

The current study examines the effects of rumination and humor on individuals’ dysphoria level. Measures of humor (affiliative and self-enhancing), rumination, and depressive symptoms were completed by 303 undergraduate students. Consistent with our hypothesis, both affiliative humor and rumination independently accounted for variance in dysphoria levels. In addition, self-enhancing humor and rumination were independently associated with dysphoria. Moreover, significant interactions between affiliative humor and rumination, and self-enhancing humor and rumination, on dysphoria also emerged. Results indicated that among individuals with high rumination, those with high affiliative and/or self-enhancing humor had significantly lower levels of dysphoria than individuals with low affiliative and/or self-enhancing humor. The combination of low affiliative and/or self-enhancing humor and high rumination led to substantially higher levels of dysphoria than any other combination. Implications for psychotherapy and research in this area are discussed.