Potential underlying mechanisms for greater weight gain in massaged preterm infants

In this paper, potential underlying mechanisms for massage therapy effects on preterm infant weight gain are reviewed. Path analyses are presented suggesting that: (1) increased vagal activity was associated with (2) increased gastric motility, which, in turn, was related to (3) greater weight gain; and (4) increased IGF-1 was related to greater weight gain. The change in vagal activity during the massage explained 49% of the variance in the change in gastric activity. And, the change in vagal activity during the massage explained 62% of the variance in the change in insulin. That the change in gastric activity was not related to the change in insulin suggests two parallel pathways via which massage therapy leads to increased weight gain: (1) insulin release via the celiac branch of the vagus; and (2) increased gastric activity via the gastric branch of the vagus.     

自闭症谱系障碍个体的社会动机缺陷

自闭症谱系障碍(ASD)是一种源于儿童期的神经发育障碍, 社会交往障碍是其核心特征, 与社会动机缺陷密切相关。社会动机是引导个体社会行为的强大动力, 主要表现为社会定向、社会奖赏和社会维持。现有研究表明, ASD个体的社会动机发展存在缺陷, 他们对社会刺激的注意偏向减少, 不能主动寻求和体会社会互动带来的快乐, 且缺乏维持社会关系的行为策略等。然而, 相关研究结果受到个体特征、环境和实验设计等因素的影响。研究者未来应综合考虑这些影响因素, 加强对ASD个体社会动机理论的整合研究, 以便全面系统地了解ASD个体的社会动机缺陷。     

Psychological Consequences of Pregnancy Loss and Infant Death in a Sample of Bereaved Parents

This study aimed to explore a broad range of psychological reactions to trauma in a sample of bereaved parents in order to assess whether the traumatic framework is adequate for describing the entire range of emotional reactions to infant death. A sample of bereaved parents (N = 455) who lost their child through perinatal or postnatal loss were compared to a control group of parents (N = 110) who gave birth to a healthy child. Multivariate regression analysis clearly demonstrated that bereaved parents scored significantly higher on the Depression, Anxiety, Dissociation, Sleep Disturbances, Somatization, Interpersonal Sensitivity, and Aggression subscales of the Trauma Symptom Checklist. Consistent with previous studies, the results showed that for up to 5 years postloss bereaved parents expressed elevated levels of trauma-specific and psychological outcomes, in particular interpersonal sensitivity and aggression.     

Malleability of weight-biased attitudes and beliefs: A meta-analysis of weight bias reduction interventions

Weight bias exists across many important life domains, necessitating interventions designed to reduce weight-biased attitudes and beliefs. Though the effectiveness of weight bias interventions has been questioned, to our knowledge no meta-analysis of these interventions has been conducted. This meta-analysis evaluated the impact of weight bias interventions on weight-biased attitudes and beliefs and explored potential moderators. Interventions were eligible if they used an adult sample and a validated measure of weight-biased attitudes, which resulted in the inclusion of 30 studies represented in 29 articles. A random effects approach using inverse weights resulted in a mean effect size estimate of g = −0.33 (lower scores indicate less weight bias) for both attitudes and beliefs. Intervention type, publication type, and population type were not significant moderators but demonstrated noteworthy trends. Results reveal a small, positive effect of weight bias interventions on weight-biased attitudes and beliefs and provide useful information for future interventions.     

Ethnic identity,thin-ideal internalization,and eating pathology in ethnically diverse college women

Although much research suggests that ethnic identity is positively correlated with psychological health for ethnic minority women, research examining ethnic identity's relationships to thin-ideal internalization, weight concerns, and eating concerns is sparse. Consequently, this study examined these relationships in European American, African American, Latina, and Asian American college women (N = 816). As expected, univariate analyses of variance indicated that European American women scored lowest on ethnic identity and highest on eating and weight concerns, whereas African American women scored lowest on thin-ideal internalization. Hierarchical regression analyses indicated that ethnic identity was negatively associated with eating and weight concerns, while body mass index and thin-ideal internalization were positively associated. Ethnic identity moderated the relationship between thin-ideal internalization and eating concerns such that the relationship was stronger for participants with lower ethnic identity. These results suggest ethnic identity may be a direct or interactive protective factor against eating concerns in ethnically diverse college women.     

Holding fat stereotypes is associated with lower body dissatisfaction in normal weight Caucasian women who engage in body surveillance

This study examined the moderating effect of body surveillance on the relationship between fat stereotype endorsement and body dissatisfaction in normal weight women. Participants (N = 225) completed online measures of fat stereotyping, body surveillance, body dissatisfaction, and internalized thin ideals. After accounting for thin ideals, body surveillance moderated the relationship between fat stereotypes and body dissatisfaction. Contrary to hypotheses, higher fat stereotype endorsement predicted lower body dissatisfaction in women with higher body surveillance. Conversely, higher fat stereotype endorsement predicted greater body dissatisfaction in women with lower body surveillance. Thus, endorsing fat stereotypes appears protective against body dissatisfaction in normal weight women who extensively engage in body surveillance. For women who hold fat stereotypes and report high body surveillance, we propose that downward appearance comparison may create a contrast between themselves and the people with overweight whom they denigrate, thus improving body dissatisfaction.     

Emotional responses to behavioral economic incentives for health behavior change

Many people aim to change their lifestyle, but have trouble acting on their intentions. Behavioral economic incentives and related emotions can support commitment to personal health goals, but the related emotions remain unexplored. In a regret lottery, winners who do not attain their health goals do not get their prize but receive feedback on what their forgone earnings would have been. This counterfactual feedback should provoke anticipated regret and increase commitment to health goals. We explored which emotions were actually expected upon missing out on a prize due to unsuccessful weight loss and which incentive-characteristics influence their likelihood and intensity. Participants reported their expected emotional response after missing out on a prize in one of 12 randomly presented incentive-scenarios, which varied in incentive type, incentive size and deadline distance. Participants primarily reported feeling disappointment, followed by regret. Regret was expected most when losing a lottery prize (vs. a fixed incentive) and intensified with prize size. Multiple features of the participant and the lottery incentive increase the occurrence and intensity of regret. As such, our findings can be helpful in designing behavioral economic incentives that leverage emotions to support health behavior change.     

Driving manoeuvre during lane maintenance in older adults: Associations with neuropsychological scores

Older drivers experience difficulties in lane maintenance under challenging driving sections due to age-related cognitive declines, yet there is little comprehensive evidence on associations between cognitive functions and the lane maintenance in this population. In this study, fifty older drivers completed an on-road driving assessment and a battery of standard neuropsychological tests. Mean Lane Position (MLP), Standard Deviation of Lane Position (SDLP) and manoeuvre time calculated from precise vehicle movement trajectories were used as the lane maintenance parameters. The GNSS tracking vehicle movement presents comprehensive and reliable vehicle position data, which is more sensitive for detecting subtle variations of lane maintenance in older drivers. Statistical analysis results showed that lower visual attention (selective and divided attention) was associated with higher MLP and SDLP; MLP was also correlated to spatial abilities, executive function, and motor speed; manoeuvre time was negatively correlated with drivers’ risk-taking personality (all p < .01). Selective attention was found to be the best predictor of MLP in lane maintenance. A combined eight variables from three neuropsychological tests, UFOV 2 and 3, BD and BJLO, D-KEFS TMT 1, 2, 3, and 4, correctly classified 80.4% of participants with good versus low-performing lane maintenance.     

ATTACKS ON LINKING OR A DRIVE TO COMMUNICATE? TOLERATING THE PARADOX

The notion of attacks on linking, as described by Bion, may depict a patient's drive to communicate the internalization of a destructive relationship between a primary object and an infant. This may be enacted between patient and analyst in the here and now of the analysis, whereby fragmentation and numbing of thinking may point to a primitive catastrophe relived in the psychoanalytic setting. The patient's material may seem incoherent, but incoherence might be the communication the patient is unconsciously trying to convey. Thus, the notion of attacks on linking depicts a paradoxical, caesural experience in which the attack on linking is itself a link.