Visuospatial working memory and attention control make the difference between experts, regulars and non-players of the videogame League of Legends.

Video games have been postulated as an emerging field for studying the cognition-expertise relationship. Despite this, some methodological practices hinder scientific advance (e.g.

The Relationship between Motivation and Burnout in Athletes and the Mediating Role of Engagement.

The purpose of our research was to analyze the relationship among motivation, burnout, and engagement in sports. Five hundred athletes of both sexes from multiple sports modalities took part, with a mean age of 17.39 years (SD = 4.

Basic Psychological Needs, Burnout and Engagement in Sport: The Mediating Role of Motivation Regulation.

The purpose of the present research was to analyze the mediating role of motivational regulation between the satisfaction of basic psychological needs and burnout and engagement in athletes. From different sports 1011 young Spanish athletes participated in the study. Participants completed several measurement instruments concerning: the Basic Needs Satisfaction in Sport Scale, Behavioral Regulation in Sport Questionnaire, Athlete Burnout Questionnaire and Athlete Engagement Questionnaire.

The mediating role of sport self-motivation between basic psychological needs satisfaction and athlete engagement.

Background: Engagement could constitute a frame of reference for promoting positive experiences in sport, hence the importance of learning about what precedes it in order to promote its development. This study was conducted to examine the role of self-motivation as a mediator between basic psychological needs satisfaction and athlete engagement.

Method: A sample of 426 male and female athletes from different sports were asked to complete three questionnaires measuring each of the study variables: The Basic Needs Satisfaction in Sport Scale, the Behavioral Regulation in Sport Questionnaire and the Athlete Engagement Questionnaire.

Attitude Toward Organ and Tissue Xenotransplantation Questionnaire (PCID-XENOTx-Ríos): Characteristics and Psychometric Properties of the Validation in Spanish-Speaking Populations.

Introduction: Making xenotransplantation socially acceptable is the first step in working toward the promotion of this potential therapy option for providing transplant organs. However, most of the questionnaires used for this task are not validated.

Objective: To analyze the psychometric characteristics of the questionnaire of attitud toward xenotransplantation PCID-XENOTx-Ríos (Questionnaire of Proyecto Colaborativo Internacional Donante about Xenotransplantation developed by Dr.

Validation of the Attitude Toward Living Liver Donation Questionnaire (PCID-DVH-Ríos) in Spanish-Speaking Populations: Characteristics and Psychometric Properties.

Introduction: Given the lack of a sufficient number of livers available for transplantation, living liver donation (LLD) is being developed in the Spanish-speaking world. Knowing the population's attitude toward this donation will help in designing more effective campaigns to increase the number of such donations. However, there are few validated questionnaires.

Preliminary Empirical Validation of the "Basic Needs Satisfaction in Sport Scale" With a Sample of Spanish Athletes.

The theory of self-determination establishes the existence of three basic psychological needs (autonomy, competence, and relationship). If these needs are satisfied, optimal personal well-being will be achieved. The (BNSSS) is a measurement developed to evaluate these needs within the sporting context.

Living Kidney Donation Questionnaire (PCID-DVR-Ríos): Validation and Psychometric Characteristics in a Spanish-Speaking Population.

Background: The attitude toward living kidney donation is important for certain promotion campaigns, however, there are few validated questionnaires in this regard. The aim of this work was to analyze the psychometric characteristics of the attitudes questionnaire about living renal donation, PCID-DVR-Ríos (Cuestionario del Proyecto Colaborativo Internacional Donante sobre Donación de Vivo Renal [Questionnaire of the International Collaborative Donor Project on Living Kidney Donation] developed by Dr Ríos) for the validation of the questionnaire in population of Spanish speakers.

Methods: The sample studied represented the population >18 years of age, native and resident of Spain, stratified by age and sex.

Psychometric Characteristics of the Attitude Questionnaire Toward the Donation of Organs for Transplant (PCID-DTO-RIOS).

Introduction: Most psychosocial attitude studies for donors are not evaluated and are not valid. Validated questionnaires are necessary to compare results and guarantee that they measure what they are intended to measure.

Objective: To analyze the psychometric characteristics of the attitude questionnaire toward the donation of one's own organs after death.

Reduced Spanish Version of Participation Motives Questionnaire for Exercise and Sport: Psychometric Properties, Social/Sport Differences.

Understanding the motives that influence physical activity participation is important in order to orientate physical activity promotion and increase physical activity levels of practice of the population. Although many instruments been created and validated to measure motives to perform physical activity, one of the most frequently used scales during years is the Participation of Motives Questionnaire (PMQ) by Gill et al. (1983).

Antecedents and consequences of burnout in athletes: Perceived stress and depression.

: The aim of this study was to investigate the relationship among perceived stress, burnout and depression in a sample of athletes. It was hypothesized that stress is an antecedent of burnout and depression a possible consequence of both stress and burnout. : A sample of 453 athletes participated in the study.

Adaptation of the Athlete Burnout Questionnaire in a Spanish sample of athletes.

In this paper, we offer a general version of the Spanish adaptation of Athlete Burnout Questionnaire (ABQ) designed to measure the syndrome of burnout in athletes of different sports. In previous works, the Spanish version of ABQ was administered to different samples of soccer players. Its psychometric properties were appropriate and similar to the findings in original ABQ.

Factor structure and invariance of the POMS Mood State Questionnaire in Spanish.

The purpose of this study was to examine the extent to which the Spanish POMS assesses the same factors as the original form of the questionnaire. We started from a version with 63 items, representing seven conceptual dimensions. This version was administered to a sample of 364 adult athletes.

[Spanish version of Athlete Burnout Questionnaire (ABQ) for the measurement of burnout in soccer players].

The Athlete Burnout Questionnaire (ABQ) is a 15-item questionnaire that comprises three subscales: emotional/physical exhaustion, reduced sense of accomplishment, and sport devaluation. In a preliminary work, the ABQ was translated into Spanish and administered to 140 male soccer players. In the present study, we include alternative statements for weaker items.

[Development of a scale to measure leadership capacity of players in sports teams].

This study describes the process of developing a scale to measure the leadership capacity of players in sports teams. Research into sports leadership has focused almost exclusively on the formal leadership of the coach, in which the studies by Chelladurai, with his five-factor model, have become an essential point of reference. Nevertheless, hardly any research has been carried out into the leadership that certain players exercise over the other team members.

[Mood state indicators for adolescent athletes based on POMS multidimensional model].

In this paper, we offer a short version of the POMS, with only 33 items, designed to apply to young Spanish athletes. One hundred and six male soccer players, aged 14 and 15 years, participated in the study. In order to select the proposed items, we tried to maximize three criteria: (1) items should be understood by subjects, (2) items should be perceived as conceptually similar as possible to the meaning of their respective factors, and (3) every factor should contain at least 4 items.

Simultaneous administration of G-CSF and GM-CSF for re-mobilization in patients with inadequate initial progenitor cell collections for autologous transplantation.

Background: A proportion of candidates for high-dose chemotherapy with autologous PBPC support (HDC-PBPCS) will not provide an adequate PBPC yield from their first mobilization. The value of re-mobilization and the best regimen for re-mobilization in these patients is unclear.

Methods: In 23 patients who failed to provide > or = 3 x 10(6) CD34+ cells/kg after their first mobilization, PBPC were re-mobilized using a regimen of simultaneous administration of G-CSF and GM-CSF (10 microg/kg/day each) with leukaphereses (LP) starting Day 4 or 5 of CSF administration.

Pharmacopsychiatry and iatrogenic Parkinsonism.

Through the study of the pharmacological and clinical actions of chlozapine, a new drug used in psychiatry, we are questioning one of the traditional statements on the therapeutic action of antipsychotics: the affirmation that those must have, concomitantly, antipsychotic action and intense extrapyramidal effects (drug-induced parkinsonism). Combining our own investigations and those of other authors, the generally accepted concepts on the possible biochemical mechanisms involved in the etiology of endogenous psychosis are criticized. Although there is evidence of alterations of the dopaminergic system in schizophrenia and also changes due to the action of neuroleptics, we cannot reject, given the dissociation of effects obtained with chlozapine, the possibility that the repercussion on the nigrostriatal dopaminergic system be only one of the many probably mechanisms of action of psychotropic drugs.