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71.
Changes of cognitive function in PD have been extensively documented and defined as a 'frontal' type executive dysfunction. One of the main components of this executive dysfunction is the impairment of verbal fluency. The aim of the present study was to assess semantic and phonemic fluency in a large sample of PD patients and to investigate the effect of clinical and sociodemographic variables on verbal fluency in this patient group. Three hundred patients with idiopathic Parkinson's disease who were consecutive referrals to our clinic and 50 age and education matched healthy controls completed the phonemic and semantic verbal fluency tasks. Both phonemic and semantic verbal fluency were significantly impaired in PD patients relative to matched controls. Stage of illness, presence of depression, education and age influenced verbal fluency measures. Regression analyses established that global measures of cognitive ability (MMSE) and executive function (FAB) and side of onset of motor symptoms predicted 36-37% of variance of phonemic or semantic verbal fluency measures. Thus, future studies aimed at assessing cognitive functioning in PD patients treated by deep brain stimulation (DBS) should adequately take into account several factors (stage of illness, depression, executive functioning) which may potentially influence performance on verbal fluency tasks. 相似文献
72.
Recent evidence led to the conclusion that addition problems are biased towards overestimation, regardless of whether information is conveyed by symbolic or non-symbolic stimuli (the Operational Momentum effect). The present study focuses on the role of operands in the overestimation of addition problems. Based on the tie effect, and on recent evidence that the nature of operands biases addition problems towards an underestimation when operands are repeated, but towards an overestimation when different, we aim here to further elucidate the contribution of operands to addition problems. Experiment 1 replicates the underestimation of repeated-operand additions and overestimation of different-operand additions, with large numbers (around 50), and explores whether these effects also apply to small operand additions (around 10). Experiment 2 further explores the overestimation of different-operand additions by investigating the roles of operand order and numerical distance between operands. The results show that both factors have an impact on the overestimation size, but are not crucial for overestimation to occur. The results are discussed in terms of arithmetic strategies, spatial organization of numbers and magnitude representation. 相似文献
73.
Alfredo Oliva Enrique Arranz Agueda Parra Fernando Olabarrieta 《Journal of child and family studies》2014,23(1):10-19
This paper presents the results of a study carried out in Spain with 214 families with children aged between 3 and 10, comparing the quality of family context and the internal and external adjustment of children living in six different types of family structure: traditional, single-parent, stepfamilies, adoptive, same-sex parent and multiple-birth. Members of the research team interviewed the families in their homes and administered the assessment instruments (Development History, HOME inventory, Parenting Stress Index and Behavior Assessment System for Children). The results indicate that although some significant differences were observed between families (children living in same-sex parent families scored higher for internal and external adjustment, and those from stepfamilies scored lowest in these same measures), these differences disappeared when the effects of sociodemographic and contextual variables were statistically controlled in a covariance analysis. It can therefore be concluded that it was not family structure itself that was related to children’s adjustment, but rather the sociodemographic and contextual variables associated with it. Thus, all the family structures analysed in the study are capable of promoting positive child development and adjustment, providing they meet the necessary conditions, such as good-quality care and a stimulating environment free from conflict and stress. 相似文献
74.
José-Antonio Muñoz-Reyes Carlos Gil-Burmann Enrique Turiegano 《Estudios de Psicología》2013,34(2):319-340
AbstractThis study aims to test whether two morphometric characteristics, the second to fourth finger length ratio (2D:4D index) and the facial width-to-height ratio (FWH index), which reflects the degree of facial masculinization, are related to aggression in adolescents of both sexes. Previous studies have proposed that the 2D:4D index (a trait related to prenatal testosterone) and the FWH (related to testosterone during puberty) are related to aggressiveness in adult males (although there is evidence to the contrary). In the present study we investigate the relationship of both traits with different measures of aggression in a mixed population of 296 adolescents (14–19 years old). We did not find relationships between 2D:4D and FWH with aggressiveness. Furthermore, our results suggest that the FWH index must be used only after controlling for body mass index. 相似文献
75.
Dynamic balance between grain refinement and grain growth during high-pressure torsion of Cu powders
Haiming Wen Rinat K. Islamgaliev Konstantin M. Nesterov Ruslan Z. Valiev Enrique J. Lavernia 《Philosophical Magazine Letters》2013,93(8):481-489
High-pressure torsion (HPT) was applied to unmilled coarse-grained (CG) Cu powders with low initial dislocation density and cryomilled nanocrystalline (nc) Cu powders with high initial dislocation density, with identical processing parameters. HPT of unmilled CG Cu powders resulted in exceptional grain refinement and increase in dislocation density, whereas significant grain growth and decrease in dislocation density occurred during HPT of cryomilled nc Cu powders. Equilibrium structures were achieved under both conditions, with very similar stable grain sizes and dislocation densities, suggesting dynamic balances between deformation-induced grain refinement and grain growth, and between deformation-induced dislocation accumulation and dislocation annihilation. The equilibrium structures are governed by these two dynamic balances. 相似文献
76.
Gordillo León F Arana Martínez JM Mestas Hernández L Salvador Cruz J García Meilán JJ Carro Ramos J Pérez Sáez E 《Psicothema》2010,22(4):765-771
We studied the effect of emotion generated by IAPS (International Affective Picture System) pictures on incidental recognition of these pictures for short retention periods (15 min). Memorization distraction tasks and reaction time tasks were used together with short exposure times (2 seconds per picture) in order to prevent a high recognition rate that would impede testing for the effect of emotion on discrimination parameters (A′) and response bias (B′′D) (ceiling effect). We used 80 pictures representing the medium and high levels of two-dimensional emotional space. The results showed greater discrimination and a more conservative response style to unpleasant and medium arousal level pictures. These pictures produced higher confidence and lower response times in the recognition phase. The results can be explained by the negative content of the pictures and activation level effects on attentional processing and memory, and can be interpreted as a phenomenon that is evolutionarily adaptive. 相似文献
77.
Dolores Luna Angel Villarino Maria Rosa Elosúa Jose Maria Merino Enrique Moreno 《Visual cognition》2013,21(2):241-259
The effects of perceptual grouping/segregation of targets and distractors by means of colour on positive and negative priming were examined in two experiments. In Experiments 1 and 2 we examined whether grouping of target and distractors by means of common colour in the prime display affected positive and negative priming, or whether these effects depend on prime–probe contextual similarity in colour. In addition, we examined the effects of the predictability of target colour in the prime and the probe displays across the experiments using mixed (Experiment 1) or blocked procedures (Experiment 2). The pattern of results was similar in both experiments, indicating that the positive priming effect was determined by target repetition and enhanced by perceptual segregation of target from distractors in the prime display. The negative priming effect was determined by grouping the target and distractors by common colour in the prime display. The results of the present experiments are consistent with inhibition-based models of negative priming. 相似文献
78.
Fernández-Abascal EG Guerra P Martínez F Domínguez FJ Muñoz MA Egea DA Martín MD Mata JL Rodríguez S Vila J 《Psicothema》2008,20(1):104-113
The International Affective Digitized Sounds (IADS): Spanish Norms. The Spanish norms for the International Affective Digitized Sounds (IADS) are reported. The IADS is a standardized set of 110 digitalized sounds which are both reliable and valid for the experimental study of emotional processes. The construction of the IADS is based on Peter J. Lang's dimensional model of emotions. Participants were 1.716 university students (1.136 women) who assessed the sounds using the three scales of the Self-Assessment Manikin: affective valence, arousal, and dominance. The results show a distribution of the sounds, within the bidimensional plot defined by valence and arousal, similar to the North-American student population with a typical boomerang shape. No significant differences were found when comparing men and women nor when comparing the Spanish and North-American samples in the total set of sounds. The results are discussed in relation to the International Affective Picture System (IAPS). The norms for each of the 110 sounds are presented in an annexed table. 相似文献
79.
Diverse works on health sciences emphasise the importance of burnout in specific jobs. However, there is a lack of research about the presence of this syndrome in Spanish physiotherapists. The aims of this study were to determine the prevalence of burnout among physiotherapists and the relationship with work-related factors. 462 questionnaires were sent to health-centres. The questionnaire of work-related factors was administered, as well as the Maslach burnout inventory (MBI). 258 responses were received (55.8% response rate) from Murcia and Valencia. Regarding results 10 (4%) physiotherapists showed severe burnout. In relation to work-related factors, significant differences were observed. Although the percentage of physiotherapists with severe burnout was relatively low, it is important take into account that the syndrome requires the combined presence of three dimensions, which implies a very relevant situation of mental deterioration. 相似文献
80.
This article aims to explore the effects of personal, interpersonal, and situational variables on social integration in the community. Structural equation analyses from two‐wave panel data (N = 536) of adult participants living in an urban area showed that personal determinants (perceived stress and depressive mood), and situational determinants (undesirable life events) were statistically related to a decrease in social integration in the community. Interpersonal determinants (emotional, guidance, and instrumental support) were positively associated with an increase in social integration in the community. Implications of these and other findings are discussed. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献