The effects of frequency of encouragement on performance during maximal exercise testing

The aim of this study was to determine the effects of frequency of verbal encouragement during maximal exercise testing. Twenty-eight participants (12 males, 16 females) aged 20.9 - 1.5 years (mean - s ) performed a maximal exercise test ( V O 2max ) on a treadmill without any verbal encouragement. The participants were matched according to their pre-test V O 2max and placed into either a control group or one of three experimental groups. They performed a second exercise test (post-test) 1 week later. During the second test, the control group received no verbal encouragement; the 20 s (20E), 60 s (60E) and 180 s (180E) encouragement groups received verbal encouragement every 20, 60 and 180 s, respectively, beginning with stage 3 of the exercise test. Relative V O 2max , exercise time, blood lactate concentration, respiratory exchange ratio (RER) and ratings of perceived exertion (RPE) were not significantly different from the first test to the second test for the control group without verbal encouragement and the 180E group that received infrequent encouragement. Post-test values were significantly higher than pre-test values for the 20E and 60E groups. The post-test values of the 20E group were significantly higher than their pre-test values for relative V O 2max ( P ? 0.001), exercise time ( P ? 0.0001), blood lactate concentr . ation ( P ? 0.05), RER ( P ? 0.01) and RPE ( P ? 0.0001); this was also the case for the 60E group for relative V O 2max ( P ? 0.01), blood lactate concentration ( P ? 0.05), RER ( P ? 0.05) and RPE ( P ? 0.05). The results suggest that frequent verbal encouragement (every 20 s and 60 s in the present study) leads to significantly greater maximum effort in a treadmill test than when no encouragement is given or when the encouragement is infrequent (i.e. every 180 s).     

Moderate-to-vigorous physical activity,executive functions and prefrontal brain oxygenation in children: A functional near-infrared spectroscopy study

Despite accumulating evidence that regular exercise improves executive functioning, the underlying neurophysiological mechanisms have rarely been investigated. The present study aimed to compare cognitive performance as well as task-specific concentration changes in oxygenated haemoglobin in the prefrontal cortex between children with higher and lower moderate-to-vigorous physical activity (MVPA). Physical activity was measured over 7 consecutive days using actigraphy. Afterwards, participants (N = 50) completed verbal fluency tests (VFTs) and mental arithmetic (MA) for the assessment of cognitive flexibility and working memory capacity. During the tasks, changes of oxygenated haemoglobin were measured with functional near-infrared spectroscopy. Using average MVPA of 11-year-old children as cut-point, the sample was divided into children with lower and higher MVPA. Analyses of variance revealed no significant differences in correct and false responses on the cognitive tests between groups. With regard to oxygenated haemoglobin, no group differences were found for concentration changes in response to the cognitive tasks. In conclusion, VFTs and MA increased children’s activation in prefrontal regions associated with cognitive flexibility and working memory, respectively. However, these executive functions and cortical activation were not different between children with lower and higher MVPA.     

Sexual, physical, verbal/emotional abuse and unexplained chest pain

Objectives

Approximately one third of patients with non cardiac chest pain (NCCP) report a history of abuse, however no data exists on the prevalence of abuse among people with unexplained chest pain in the general population. We aimed to determine if there is a relationship between childhood sexual, physical, emotional abuse and unexplained chest pain, and to identify whether any potential relationship is being driven by an association with psychological distress.

Methods

Subjects were identified from 2 previous random population surveys that included people with irritable bowel syndrome (IBS) and/or functional dyspepsia (FD) and healthy controls. People in the unexplained chest pain group (n = 27) had chest pain in the past 12 months that was not heartburn or heart disease. People in the comparison group (n = 60) did not have chest pain for more than 12 months. Self-reported abuse and psychological variables were assessed using validated measures.

Results

Emotional/verbal abuse (20.8% versus 4.4%, P = 0.032) and physical abuse (16.7% versus 2.2%, P = 0.028) were significantly more common in people with unexplained chest pain versus the comparison group. Only a history of emotional/verbal abuse was a significant independent predictor of meeting criteria for unexplained chest pain (OR = 5.66; 95%CI 1.01–31.80, P = 0.049) even after controlling for IBS and/or FD (OR = 5.45; 95%CI 0.96–30.83, P = .05), but not when depression was controlled for (OR = 4.70; 95%CI 0.90–27.61), P = 0.08.

Conclusions

A history of childhood emotional/verbal abuse is a risk factor for having unexplained chest pain but the association may be moderated by psychological distress, specifically depression.     

The Role of Family Verbal Aggression and Taking Conflict Personally in Romantic Relationship Complaint Avoidance

This study examined complaint avoidance in adult romantic relationships as a function of both exposure to family verbal aggression in childhood and taking conflict personally. Four hundred thirty-seven college students completed measures assessing their histories of family verbal aggression, complaint avoidance behaviors, and tendencies to take conflict personally. Results indicated that a history of family verbal aggression and three components of taking conflict personally, namely positive relational effects, negative relational effects, and like/dislike valence, were negatively associated with complaint avoidance. In addition, a history of family verbal aggression was positively associated with positive relational effects, negative relational effects, and like/dislike valence. The relationship between a history of family verbal aggression and complaint avoidance, however, was not mediated by taking conflict personally.     

言语交际容错阈与语言文字规范化

言语交际中存在编码语义所指错误而解码无误的现象,是因为编码错误在容错阈之内;容错阈的大小既与解码者的语言素质高与低有关,也与编码错误的显与隐、广与狭有关;当一种编码错误非常广泛,已进入"全民容错阈"时,应该就是被语言文字规范化"容错"的对象。     

言语交际中模糊语浅议

模糊语作为交际的一种常见现象,是交际者在交际活动的示意和释义过程中出现的种种不确定性的总称。既然在言语交际中说话人很少有言谈追求刻意,那么基于语用学的角度,从说话人表达和受话者理解层面分析言语交际中的模糊语现象,指出模糊语可以使言语交际中的话语更加得体、合适,有其积极作用。     

传统反语语用观与回应理论的对比研究

作为言语交际中一种普遍的语言现象 ,言语反语已引起语言学家和认知心理学家的关注。本文首先阐述早期语用学对反语的语用分析 ,继而探讨了Sperber和Wilson在关联理论框架下提出的反语回应理论。本文试图通过对比分析说明反语回应理论对反语更具解释力。     

The consistency effect in word problem solving is effectively reduced through verbal instruction

In mathematical word problem solving, a relatively well-established finding is that more errors are made on word problems in which the relational keyword is inconsistent instead of consistent with the required arithmetic operation. This study aimed at reducing this consistency effect. Children solved a set of compare word problems before and after receiving a verbal instruction focusing on the consistency effect (or a control verbal instruction). Additionally, we explored potential transfer of the verbal instruction to word problems containing other relational keywords (e.g., larger/smaller than) than those in the verbal instruction (e.g., more/less than). Results showed a significant pretest-to posttest reduction of the consistency effect (but also an unexpected decrement on marked consistent problems) after the experimental verbal instruction but not after the control verbal instruction. No significant effects were found regarding transfer. It is concluded that our verbal instruction was useful for reducing the consistency effect, but future research should address how this benefit can be maintained without hampering performance on marked consistent problems.     

英语口语交际中冗余的语用功能

文章从语用学的角度,探讨了英语口语交际中冗余的语用功能,旨在帮助读者提高运用冗余的能力,使冗余能够更好地为日常交际服务。     

Communication Channel,Sex, and the Immediate and Longitudinal Outcomes of Verbal Person-centered Support

This study extended research on verbal person-centered (VPC) support by studying VPC in conversations, examining perceptions of support providers and receivers, testing the influence of different communication channels, and evaluating longitudinal outcomes. Two hundred fifty-five dyads composed either of two men, two women, or one man and one woman interacted in a laboratory wherein channel and level of VPC were manipulated. Evaluations of support were gathered from support providers and recipients, and recipients also reported outcomes three weeks later. Perceptions of support differed between channels, such that men providing high VPC support were evaluated more positively when using CMC, and women communicating low VPC support were evaluated more negatively online. Effects of level of VPC, channel, and provider's sex on receivers' outcomes persisted three weeks later.