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161.
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IntroductionExercise, and in particular balance and coordination related activities such as dance, appear to have positive effects on cognitive function, as well as neurodegenerative conditions such as dementia and Parkinson’s disease. Quadrupedal gait training is a movement system requiring coordination of all four limbs that has previously been associated with cognitive development in children. There is currently little research into the effect of complex QDP movements on cognitive function in adults.PurposeTo determine the effects of a novel four-week quadrupedal gait training programme on markers of cognitive function and joint reposition sense in healthy adults.MethodsTwenty-two physically active sports science students (15 male and 7 female) were divided into two groups: a training group (TG) and a control group (CG). All participants completed the Wisconsin Card Sorting Task (WCST) and were tested for joint reposition sense before and after a four-week intervention, during which time the TG completed a series of progressive and challenging quadrupedal movement training sessions.ResultsParticipants in the TG showed significant improvements in the WCST, with improvements in perseverative errors, non-perseverative errors, and conceptual level response. This improvement was not found in the CG. Joint reposition sense also improved for the TG, but only at 20 degrees of shoulder flexion.ConclusionsPerformance of a novel, progressive, and challenging task, requiring the coordination of all 4 limbs, has a beneficial impact on cognitive flexibility, and in joint reposition sense, although only at the specific joint angle directly targeted by the training. The findings are consistent with other studies showing improvements in executive function and joint reposition sense following physical activity. 相似文献
163.
Mobility and gait limitations are major issues for people with Parkinson disease (PD). Identification of factors that contribute to these impairments may inform treatment and intervention strategies. In this study we investigated factors that predict mobility and gait impairment in PD. Participants with mild to moderate PD and without dementia (n = 114) were tested in one session ‘off’ medication. Mobility measures included the 6-Minute Walk test and Timed-Up-and-Go. Gait velocity was collected in four conditions: forward preferred speed, forward dual task, forward fast as possible and backward walking. The predictors analyzed were age, gender, disease severity, balance, balance confidence, fall history, self-reported physical activity, and executive function. Multiple regression models were used to assess the relationships between predictors and outcomes. The predictors, in different combinations for each outcome measure, explained 55.7% to 66.9% of variability for mobility and 39.5% to 52.8% for gait velocity. Balance was the most relevant factor (explaining up to 54.1% of variance in mobility and up to 45.6% in gait velocity). Balance confidence contributed to a lesser extent (2.0% to 8.2% of variance) in all models. Age explained a small percentage of variance in mobility and gait velocity (up to 2.9%). Executive function explained 3.0% of variance during forward walking only. The strong predictive relationships between balance deficits and mobility and gait impairment suggest targeting balance deficits may be particularly important for improving mobility and gait in people with PD, regardless of an individual’s age, disease severity, fall history, or other demographic features. 相似文献
164.
The Development and Testing of a New Version of the Cognitive Reflection Test Applying Item Response Theory (IRT) 下载免费PDF全文
Caterina Primi Kinga Morsanyi Francesca Chiesi Maria Anna Donati Jayne Hamilton 《决策行为杂志》2016,29(5):453-469
The cognitive reflection test (CRT) is a short measure of a person's ability to resist intuitive response tendencies and to produce a normatively correct response, which is based on effortful reasoning. Although the CRT is a very popular measure, its psychometric properties have not been extensively investigated. A major limitation of the CRT is the difficulty of the items, which can lead to floor effects in populations other than highly educated adults. The present study aimed at investigating the psychometric properties of the CRT applying item response theory analyses (a two‐parameter logistic model) and at developing a new version of the scale (the CRT‐long), which is appropriate for participants with both lower and higher levels of cognitive reflection. The results demonstrated the good psychometric properties of the original, as well as the new scale. The validity of the new scale was also assessed by measuring correlations with various indicators of intelligence, numeracy, reasoning and decision‐making skills, and thinking dispositions. Moreover, we present evidence for the suitability of the new scale to be used with developmental samples. Finally, by comparing the performance of adolescents and young adults on the CRT and CRT‐long, we report the first investigation into the development of cognitive reflection. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
165.
Brian Kavanaugh Aditya Sreenivasan Catherine Bachur Aimilia Papazoglou Anne Comi 《Child neuropsychology》2016,22(6):635-648
The present study examined the intellectual and adaptive functioning in a sample of children and young adults with Sturge-Weber Syndrome (SWS). A total of 80 research participants from a SWS study database underwent full neurological evaluation as part of their participation or concurrent medical care. Twenty-nine of the participants received neuropsychological evaluations. Analyses indicated no significant demographic or neurological differences between those who did and did not receive neuropsychological evaluations. Overall, the neuropsychological evaluation sample displayed significantly lower functioning relative to published normative data across domains of intellectual and adaptive functioning. Thirty-two percent of the sample displayed impaired performance (standard score ≤ 75) in intellectual functioning and 58% displayed impaired performance in adaptive functioning. Hemiparesis status independently predicted overall adaptive functioning while seizure frequency independently predicted overall intellectual functioning. Younger participants displayed significantly higher (more intact) ratings in adaptive functioning compared to older participants, specifically in overall adaptive functioning, motor skills, and community living skills. A composite measure of neurological status (SWS-NRS) incorporating seizure and hemiparesis status effectively distinguished between individuals with impaired or nonimpaired adaptive and intellectual functioning and showed promise as a screening method for identifying individuals with more involved intellectual and/or adaptive needs. 相似文献
166.
Carol Opdebeeck Anthony Martyr 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2016,23(1):40-60
The associations between proxy measures of cognitive reserve (CR) and cognition vary across studies and cognitive domains. This meta-analysis aimed to assess the relationship between CR and cognition in multiple domains (memory, executive function, visuospatial ability, and language). CR was considered in terms of three key proxy measures – educational level, occupational status, and engagement in cognitively stimulating activities – individually and in combination. One-hundred and thirty-five studies representing 128,328 participants were included. Of these, 109 used a measure of education, 19 used a measure of occupation, 31 used a measure of participation in cognitively stimulating activities, and 6 used a combination of these. All three proxy measures had a modest positive association with cognition; occupational status and cognitive activities showed the most variation across cognitive domains. This supports the view that the commonly used proxy measures of CR share an underlying process but that each additionally provides a unique contribution to CR. 相似文献
167.
组织中的人际冲突是组织成员在分歧、负面情绪与干扰的相互作用下,通过意义建构导致互动双方在认知、情感与行为方面产生的一系列反应过程。现有研究将组织中的人际冲突分为单特征型和多特征型,集中探讨作用模型,并基于表达层面解析冲突的维度和作用模式。本文尝试将冲突类型、表达方式以及作用模型进行嵌入式整合,提出组织中人际冲突的具体应对策略。未来研究可将认知差异嵌入过程框架,探求冲突显现的临界点,验证应对方式的有效性,探究组织权力的影响,开展基于多元亚文化下组织中人际冲突的本土化研究。 相似文献
168.
近年来,男性身体意象失调越来越普遍,大众媒体被认为是一种重要的影响因素。大量研究证实了媒体对男性身体意象的消极影响,主要表现在对身体意象的认知、情绪情感和行为调控等方面。研究者基于社会文化理论提出三重影响模型(Thompson,Heinberg,Altabe,Tantleff-Dunn,1999),用以解释媒体影响男性身体意象的作用机制。该模型假设社会文化因素,即家庭、同伴、媒体是身体意象失调的三个最初影响源;外貌比较和"瘦理想"或"肌肉理想"内化是社会文化和身体意象失调之间的中介变量。未来研究应关注被试群体的多样化,将实验室研究和纵向研究相结合,并考虑其他变量的影响作用,对三重影响模型进行丰富和拓展,同时运用脑科学技术探究其神经机制。此外,还应从干预的角度展开研究。 相似文献
169.
Tool use in left brain damage and Alzheimer's disease: What about function and manipulation knowledge? 下载免费PDF全文
Christophe Jarry François Osiurak Jérémy Besnard Josselin Baumard Mathieu Lesourd Bernard Croisile Frédérique Etcharry‐Bouyx Valérie Chauviré Didier Le Gall 《Journal of Neuropsychology》2016,10(1):154-159
Tool use disorders are usually associated with difficulties in retrieving function and manipulation knowledge. Here, we investigate tool use (Real Tool Use, RTU), function (Functional Association, FA) and manipulation knowledge (Gesture Recognition, GR) in 17 left‐brain‐damaged (LBD) patients and 14 AD patients (Alzheimer disease). LBD group exhibited predicted deficit on RTU but not on FA and GR while AD patients showed deficits on GR and FA with preserved tool use skills. These findings question the role played by function and manipulation knowledge in actual tool use. 相似文献
170.
Simon D. Holzapfel Shannon D. R. Ringenbach Genna M. Mulvey Amber M. Sandoval-Menendez Natasha Birchfield Shreja R. Tahiliani 《Journal of Cognitive Psychology》2016,28(8):990-1003
Persons with Down syndrome (DS) suffer from prefrontal cortex dysfunction and deficits in executive functions. The current study examined the effects assisted cycling therapy (ACT) on short-term (STM) and working memory (WM) in adolescents with DS. During ACT, the cadence of participants on a stationary bicycle was augmented with an electrical motor to 180% of the voluntary cadence. Participants completed eight weeks of ACT (n?=?17), eight weeks of voluntary cycling (VC) at their own preferred cadence (n?=?16), or eight weeks of no cycling (np?≥?.149) and working memory improved only in the ACT group (Hedge’s g?=?1.66; p?=?.003). The results indicate that assisted high-cadence cycling (i.e. ACT) produces superior neural benefits in the dorsolateral prefrontal cortex compared to VC. 相似文献