Search results for " EXPERIMENTAL"

Usability issues of clinical and research applications of virtual reality in older people: A systematic review

2020

Aging is a condition that may be characterized by a decline in physical, sensory, and mental capacities, while increased morbidity and multimorbidity may be associated with disability. A wide range of clinical conditions (e.g., frailty, mild cognitive impairment, metabolic syndrome) and age-related diseases (e.g., Alzheimer's and Parkinson's disease, cancer, sarcopenia, cardiovascular and respiratory diseases) affect older people. Virtual reality (VR) is a novel and promising tool for assessment and rehabilitation in older people. Usability is a crucial factor that must be considered when designing virtual systems for medicine. We conducted a systematic review with Preferred Reporting Items…

Cortical Proprioceptive Processing Is Altered by Aging

2018

Proprioceptive perception is impaired with aging, but little is known about aging-related deterioration of proprioception at the cortical level. Corticokinematic coherence (CKC) between limb kinematic and magnetoencephalographic (MEG) signals reflects cortical processing of proprioceptive afference. We, thus, compared CKC strength to ankle movements between younger and older subjects, and examined whether CKC predicts postural stability. Fifteen younger (range 18-31 years) and eight older (66-73 years) sedentary volunteers were seated in MEG, while their right and left ankle joints were moved separately at 2 Hz (for 4 min each) using a novel MEG-compatible ankle-movement actuator. Coherence…

Prostaglandin D2 regulates joint inflammation and destruction in murine collagen-induced arthritis.

2012

Item does not contain fulltext OBJECTIVE: Prostaglandin D2 (PGD2) may exert proinflammatory or antiinflammatory effects in different biologic systems. Although this prostanoid and the enzymes responsible for its synthesis are up-regulated by interleukin-1beta (IL-1beta) in human chondrocytes in vitro, the role of PGD2 in arthritis remains unclear. This study was undertaken to investigate the role of PGD2 in the inflammatory response and in joint destruction during the development of collagen-induced arthritis (CIA) in mice. METHODS: PGD2 and cytokine levels in mice with CIA were determined by enzyme-linked immunosorbent assay. Expression of hematopoietic PGD synthase (h-PGDS), lipocalin-typ…

Rasgos de personalidad, bienestar y malestar psicológico en usuarios de redes sociales que presentan conductas disruptivas online

2021

The present study focused on the analysis of online disruptive behavior that usually occurs among social network users. Individuals who perpetrate such behavior are commonly known as trolls or haters (Cheng, Danescu-Niculescu-Mitzil, & Leskovec, 2015). In general, they post comments, photos or provocative videos that do not pursue any purpose other than annoying or obtaining pleasure or fun (Brandel, 2007; Phillips, 2011). Recent studies have shown that certain personality traits are associated with the presence of such disruptive behavior. In this research, we studied normal personality traits, psychopathological traits, and dark personality traits in relation to disruptive behavior. The n…

A Meta-Analysis of the Effects of Teacher Personality on Teacher Effectiveness and Burnout

2019

The question of what makes a good teacher has been asked by practitioners, policymakers, and researchers for decades. However, there is no guiding framework about which qualities are important for teachers. Thus, it is necessary to examine these qualities using a recognized framework and to summarize the previous literature on this topic. We conducted a meta-analysis on the 25 studies (total N = 6294) reporting the relationships between teacher Big Five personality domains (openness, conscientiousness, extraversion, agreeableness, and emotional stability) and two teacher job-related outcomes (i.e., teacher effectiveness and burnout). Furthermore, the influence of three moderators was assess…

Predictors of volitional personality change in younger and older adults: Response surface analyses signify the complementary perspectives of the self…

2017

Abstract Goals to change personality traits have been linked to self-rated Big Five traits. Extending previous research, we investigated the associations between change goals and diverse personality characteristics (e.g., self-esteem), other-rated Big Five traits, and self-other agreement in an age-heterogeneous sample ( N  = 378). Results replicated previous associations of change goals with age and self-rated traits. Additionally, change goals were stronger when others rated a person’s traits as low and when self-other agreement about traits was greater for extraversion, agreeableness, and conscientiousness. Associations of additional personality characteristics with change goals diminish…

2020

Abstract Temperament and physical activity (PA) have been examined in children and adolescents, but little is known about these associations in adulthood. Personality traits, however, are known to contribute to PA in adults. This study, which examined both temperament and personality characteristics at age 42 in relation to frequency of PA at age 50 (JYLS, n = 214–261), also found associations with temperament traits. Positive associations were found between Orienting sensitivity and overall PA and between Extraversion and vigorous PA among women and between low Negative affectivity and overall and vigorous PA among men. Furthermore, Orienting sensitivity and Agreeableness were associated w…

Importance of Personality for Objective and Subjective-Physical Health in Older Men and Women

2020

Objective and subjective health generally have a positive relationship, although their association may be moderated by factors such as gender and personality. We aimed to analyze the association between personality and objective (metabolic syndrome (MetS)) and subjective-physical health in older men and women. For this purpose, in 138 participants (53.6% women, Mage = 66.85), neuroticism, conscientiousness, extraversion, openness, and agreeableness (NEO Five Factor Inventory), subjective-physical health (Short Form Health Survey, SF-36), and MetS (employing waist circumference, blood pressure, triglycerides, high-density lipoprotein cholesterol, and glycated hemoglobin) were assessed. Logis…

Integration of personality constructs: The role of traits and motivation in the willingness to exert effort in academic and social life domains

2014

There has been growing interest in recent years in exploring different types of personality constructs and the nature of inter-relationships between personality variables in predicting outcomes in different life domains. The present study explores how personality traits and autonomous goal motivation predict the willingness to invest effort in academic and social life domains. Using a sample of 4133 upper secondary school students in Germany, multilevel regression analyses yielded three main results. First, both personality traits and motivation were substantially related to the willingness to exert effort. Second, the mediation effect compared to the direct effect was relatively small. Thi…

Trait Empathy associated with Agreeableness and rhythmic entrainment in a spontaneous movement to music task: Preliminary exploratory investigations

2017

The simulation theory of empathy suggests that we use motor processing to empathise, through modelling the actions of others. Similarly, research into embodied music cognition posits that music, particularly musical rhythm, is perceived as a motor stimulus. In both cases, the human Mirror Neuron System (MNS) is put forward as a potential underlying mechanism. If this is the case, some overlap may exist between the ability to empathise with others, and the ability to perceive rhythm in music. The present study investigated this relationship indirectly, through the study of individual differences in Trait Empathy and rhythmic entrainment. Undergraduate students ( N = 237) completed a questio…