Musicians and tone-language speakers share enhanced brainstem encoding but not perceptual benefits for musical pitch

Behavioral and neurophysiological transfer effects from music experience to language processing are well-established but it is currently unclear whether or not linguistic expertise (e.g., speaking a tone language) benefits music-related processing and its perception. Here, we compare brainstem responses of English-speaking musicians/non-musicians and native speakers of Mandarin Chinese elicited by tuned and detuned musical chords, to determine if enhancements in subcortical processing translate to improvements in the perceptual discrimination of musical pitch. Relative to non-musicians, both musicians and Chinese had stronger brainstem representation of the defining pitches of musical sequences. In contrast, two behavioral pitch discrimination tasks revealed that neither Chinese nor non-musicians were able to discriminate subtle changes in musical pitch with the same accuracy as musicians. Pooled across all listeners, brainstem magnitudes predicted behavioral pitch discrimination performance but considering each group individually, only musicians showed connections between neural and behavioral measures. No brain-behavior correlations were found for tone language speakers or non-musicians. These findings point to a dissociation between subcortical neurophysiological processing and behavioral measures of pitch perception in Chinese listeners. We infer that sensory-level enhancement of musical pitch information yields cognitive-level perceptual benefits only when that information is behaviorally relevant to the listener.     

The impact of aging and hearing status on verbal short-term memory

The aim of this study is to assess the impact of hearing status on age-related decrease in verbal short-term memory (STM) performance. This was done by administering a battery of verbal STM tasks to elderly and young adult participants matched for hearing thresholds, as well as to young normal-hearing control participants. The matching procedure allowed us to assess the importance of hearing loss as an explanatory factor of age-related STM decline. We observed that elderly participants and hearing-matched young participants showed equal levels of performance in all verbal STM tasks, and performed overall lower than the normal-hearing young control participants. This study provides evidence for recent theoretical accounts considering reduced hearing level as an important explanatory factor of poor auditory-verbal STM performance in older adults.     

Presence of meaning and search for meaning as mediators between spirituality and psychological well-being in a South African sample

Spirituality and meaning in life are important pathways to well-being. Research has conceptually and empirically linked spirituality, religiousness and meaning in life. The present study was concerned with investigating presence of meaning (MLQ-P) and search for meaning (MLQ-S) as mediators between spirituality (religious and existential well-being) and hedonic and eudaimonic well-being. A multi-cultural sample of 326 South African students completed the Meaning in Life Questionnaire (MLQ), Spiritual Well-Being Scale (SWBS), Questionnaire for Eudaimonic Well-Being (QEWB) and the Mental Health Continuum Short-Form (MHC-SF). Structural equation modelling in Mplus was used to study direct and indirect effects. Findings show that the presence of meaning in life explains more paths between spirituality and psychological well-being than search for meaning. MLQ-P mediated the paths between existential well-being and four of the five indices of psychological well-being. MLQ-S did not mediate any path between spirituality (existential and religious well-being) and psychological well-being outcomes.     

词语后情绪环境对语义和感知加工的影响

词语后情绪环境对其中的事件记忆产生影响,但是事件后情绪环境如何影响记忆加工仍不清楚。不同的情绪环境理论—“唤醒偏向竞争理论”,“拓宽-建构理论”,“记忆中心的积极情绪促进理论”支持情绪促进的不同本质。已有的研究表明,注意在情绪记忆中有重要作用。实验一、实验二分别探讨词语后情绪环境对其语义加工与内源源加工和外源源加工的影响。与中性环境相比,积极与消极情绪环境阻碍了外源源特征的加工; 与中性环境和积极情绪环境相比,消极情绪环境阻碍了内源源特征的加工。实验结果支持“唤醒偏向竞争理论”,同时表明“评估”和“注意放置”在情绪环境影响中的重要作用。     

Centennial Exploration of the Chinese Road and Adapting Marxism to the Chinese Context

The centennial exploration of the Chinese road started with the founding of the Communist Party of China (CPC). This road is essentially characterized by modernization and adapting Marxism to the Chinese context. The fundamental correlation between China’s modernization and Marxism lies in the fact that China must go through a thorough social revolution to lay the foundation for its modernization cause, which charted a historical course from new democracy to socialism. However, only adapting Marxism to the Chinese context can help China’s modernization, because it is this philosophy that is intrinsically related to China’s practice in revolution, construction and reform. The contemporary form of adapting Marxism to the Chinese context is socialism with Chinese characteristics, which holds great significance for both the Chinese nation and international socialism and the overall development of human society in the new historical phase. This is a kind of “significance for world history” because the great rejuvenation of the Chinese nation lies not only in its own development into a modern power, but also in the fact that it is actively opening up the possibility of a new type of civilization besides completing the modernization mission and obtaining achievements from modern civilization.     

Maternally administered interventions for preterm infants in the NICU: Effects on maternal psychological distress and mother–infant relationship

Although studies have examined the effects of interventions focused on preterm infants, few studies have examined the effects on maternal distress (anxiety, depressive symptoms, post-traumatic stress symptoms, parenting stress) or parenting. This study examined the effects of the auditory–tactile–visual–vestibular (ATVV) intervention and kangaroo care (KC) on maternal distress and the mother–infant relationship compared to an attention control group.240 mothers from four hospitals were randomly assigned to the three groups. Maternal characteristics in the three groups were similar: 64.1% of ATVV mothers, 64.2% of KC mothers, and 76.5% of control mothers were African American; maternal age averaged 26.3 years for ATVV mothers, 28.1 for KC mothers, and 26.6 for control mothers; and years of education averaged 13.6 for ATVV and KC mothers, and 13.1 for control mothers. Mothers only differed on parity: 68.4% of ATVV and 54.7% of KC mothers were first-time mothers as compared to 43.6% of control mothers. Their infants had a similar mean gestational ages (27.0 weeks for ATVV, 27.2 for KC, and 27.4 for control) and mean birthweights (993 g for ATVV, 1022 for KC, and 1023 for control).Mothers completed questionnaires during hospitalization, and at 2, 6 and 12 months corrected age on demographic characteristics, depressive symptoms, state anxiety, post-traumatic stress symptoms, parenting stress, worry about child health, and child vulnerability (only at 12 months). At 2 and 6 months, 45-min videotapes of mother–infant interactions were made, and the HOME Inventory was scored. Behaviors coded from the videotapes and a HOME subscale were combined into five interactive dimensions: maternal positive involvement and developmental stimulation and child social behaviors, developmental maturity, and irritability.Intervention effects were examined using general linear mixed models controlling for parity and recruitment site. The groups did not differ on any maternal distress variable. Kangaroo care mothers showed a more rapid decline in worry than the other mothers. The only interactive dimensions that differed between the groups were child social behaviors and developmental maturity, which were both higher for kangaroo care infants. Change over time in several individual infant behaviors was affected by the interventions. When mothers reported on the interventions they performed, regardless of group assignment, massage (any form including ATVV) was associated with a more rapid decline in depressive symptoms and higher HOME scores. Performing either intervention was associated with lower parenting stress. These findings suggest that as short-term interventions, KC and ATVV have important effects on mothers and their preterm infants, especially in the first half of the first year.     

Expert athletes activate somatosensory and motor planning regions of the brain when passively listening to familiar sports sounds

The present functional magnetic resonance imaging study examined the neural response to familiar and unfamiliar, sport and non-sport environmental sounds in expert and novice athletes. Results revealed differential neural responses dependent on sports expertise. Experts had greater neural activation than novices in focal sensorimotor areas such as the supplementary motor area, and pre- and postcentral gyri. Novices showed greater activation than experts in widespread areas involved in perception (i.e. supramarginal, middle occipital, and calcarine gyri; precuneus; inferior and superior parietal lobules), and motor planning and processing (i.e. inferior frontal, middle frontal, and middle temporal gyri). These between-group neural differences also appeared as an expertise effect within specific conditions. Experts showed greater activation than novices during the sport familiar condition in regions responsible for auditory and motor planning, including the inferior frontal gyrus and the parietal operculum. Novices only showed greater activation than experts in the supramarginal gyrus and pons during the non-sport unfamiliar condition, and in the middle frontal gyrus during the sport unfamiliar condition. These results are consistent with the view that expert athletes are attuned to only the most familiar, highly relevant sounds and tune out unfamiliar, irrelevant sounds. Furthermore, these findings that athletes show activation in areas known to be involved in action planning when passively listening to sounds suggests that auditory perception of action can lead to the re-instantiation of neural areas involved in producing these actions, especially if someone has expertise performing the actions.     

The Selfish Side of Self‐Control

Self‐control is a powerful tool that promotes goal pursuit by helping individuals curb personal desires, follow norms, and adopt rational thinking. In interdependent social contexts, the socially acceptable (i.e. normative) and rational approach to secure long‐term goals is prosocial behaviour. Consistent with that, much research associates self‐control with prosociality. The present research demonstrates that when norm salience is reduced (i.e. social relations are no longer interdependent), high self‐control leads to more selfish behaviour when it is economically rational. In three studies, participants were asked to allocate an endowment between themselves and another person (one‐round, zero‐sum version of the dictator game), facing a conflict between a socially normative and an economically rational approach. Across the studies, norm salience was manipulated [through manipulation of social context (private/public; Studies 1 and 2), measurement of social desirability (Studies 1 and 3), and measurement (Study 2) and manipulation (Study 3) of social power] such that some participants experienced low normative pressure. Findings showed that among individuals in a low normative pressure context, self‐control led to economically rational, yet selfish, behaviour. The findings highlight the role of self‐control in regulating behaviour so as to maximize situational adaptation. Copyright © 2014 European Association of Personality Psychology     

Extreme Outcomes Sway Risky Decisions from Experience

Whether buying stocks or playing the slots, people making real‐world risky decisions often rely on their experiences with the risks and rewards. These decisions, however, do not occur in isolation but are embedded in a rich context of other decisions, outcomes, and experiences. In this paper, we systematically evaluate how the local context of other rewarding outcomes alters risk preferences. Through a series of four experiments on decisions from experience, we provide evidence for an extreme‐outcome rule, whereby people overweight the most extreme outcomes (highest and lowest) in a given context. As a result, people should be more risk seeking for gains than losses, even with equally likely outcomes. Across the experiments, the decision context was varied so that the same outcomes served as the high extreme, low extreme, or neither. As predicted, people were more risk seeking for relative gains, but only when the risky option potentially led to the high‐extreme outcome. Similarly, people were more risk averse for relative losses, but only when the risky option potentially led to the low‐extreme outcome. We conclude that in risky decisions from experience, the biggest wins and the biggest losses seem to matter more than they should. Copyright © 2013 John Wiley & Sons, Ltd.     

Exploring diversity effects: nationality composition and nationality context in workgroups

The types of conflict that emerge in nationally diverse teams may depend on the number and types of nationalities present in the team. We investigate the possibility that when teams have individuals from multiple different nationalities (i.e., Dutch, Swiss and Indonesian), rather than just two different nationalities (Dutch and Indonesian), performance and task conflict will be higher while process and relationship conflicts will be comparatively lower. A scenario-based study was conducted in two countries in which we examined how nationality composition (size of national diversity or number of nationalities) and context (nature of national diversity or types of nationalities) affected perceived conflict and expected performance. We hypothesized and found that task conflict and performance are higher in nationally diverse workgroups that included multiple dissimilar nationalities compared to workgroups with just two nationalities. Results also showed that relationship and process conflicts are lower in groups that are diverse in size and nature of national diversity. We observed that social distances among nationalities varied in such a way that a distant nationality became more distanced and a close nationality became even closer in a nationally diverse group. Social distance, in that way, moderated the effect of national diversity. We discuss implications for diversity and conflict management.