Interlimb Coordination During Step-to-Step Transition and Gait Performance

Most energy spent in walking is due to step-to-step transitions. During this phase, the interlimb coordination assumes a crucial role to meet the demands of postural and movement control. The authors review studies that have been carried out regarding the interlimb coordination during gait, as well as the basic biomechanical and neurophysiological principles of interlimb coordination. The knowledge gathered from these studies is useful for understanding step-to-step transition during gait from a motor control perspective and for interpreting walking impairments and inefficiency related to pathologies, such as stroke. This review shows that unimpaired walking is characterized by a consistent and reciprocal interlimb influence that is supported by biomechanical models, and spinal and supraspinal mechanisms. This interlimb coordination is perturbed in subjects with stroke.     

The Gettier Intuition from South America to Asia

Journal of Indian Council of Philosophical Research - This article examines whether people share the Gettier intuition (viz. that someone who has a true justified belief that p may nonetheless fail...     

Parenting Styles and Suicidal Ideation in Adolescents: Mediating Effect of Attachment

The present study aims to analyze the role of parenting styles in the development of suicidal ideation in adolescents, as well as test the mediating role of attachment to parents in the association between authoritative, authoritarian and permissive parenting style and suicidal ideation. The sample was made up of 604 individuals, aged between 15 and 18. In order to gather data, the Styles & Dimensions Questionnaire: Short Version, the Father/Mother Attachment Questionnaire and the Suicidal Ideation Questionnaire were used. The results suggest that the relations with parents, which are characterized by inhibition of exploration and of individuality, contribute to an emotional maladjustment being positively associated with suicidal ideation (r?=?.26 to r?=?.28). This confirmed the mediating role of parental attachment in the association between authoritative and permissive parenting styles from father and mother to suicidal ideation. It was also verified also a partial mediation, through the attachment to parents, in the association between the parent’s authoritarian style and the mother’s permissive styles and suicidal ideation. Furthermore, it was found the presence of total mediation, by throughout to attachment to the father, in the association between the father’s permissive style and suicidal ideation. The results suggest the importance of adopting authoritative parenting styles, since they seem to facilitate the development of the quality of attachment with parents. The results were analyzed in light of the attachment theory, taking into consideration the importance of parenting styles in understanding the processes inherent to suicidal ideation in adolescence.     

Effects of delay on episodic memory retrieval by children with autism spectrum disorder

Twenty‐seven 6‐ to 15‐year‐old children with autism spectrum disorder (ASD) and 32 typically developing (TD) children were questioned about their participation in a set of activities after a 2‐week delay and again after a 2‐month delay using a best practice interview protocol. Interviews were coded for completeness with respect to the gist of the event, the number of narrative details provided, and accuracy. Results indicated that children with ASD did not differ from TD peers on any dimensions of memory after both delays. Specifically, both groups of children provided equivalently complete accounts on both occasions. However, children in both groups provided significantly fewer narrative details about the event in the second interview, and the accuracy rates were lower. The findings indicate that, like TD children, children with ASD can provide meaningful and reliable testimony about an event they personally experienced, but several aspects of their memory reports deteriorate over time.     

Motivational climate and coaches' communication style predict young soccer players' commitment

The purpose of this research was to study the role of coaches' communication style and coach-created motivational climate in young soccer players' enjoyment and commitment. Four hundred and fifteen young soccer players of high competitive level in the age range from 14 to 16 completed the following questionnaires: a) coach-induced perceived motivational climate (PMCSQ-2), b) coaches' behaviour perception (CBAS-PBS), and c) sport commitment (SCQ). Results showed that coach-created motivational climate correlated highly with the perception of coaches' communication style. Moreover, coach-created motivational climate and communication style significantly determines players' sport commitment and enjoyment. Discussion focuses on the importance of seeking and training credible coaches that favours athletes' commitment.     

Body-image and obesity in adolescence: a comparative study of social-demographic, psychological, and behavioral aspects

In current society, body and beauty's cult emerge as one of the main factors of adolescence. That leads adolescents to be dissatisfied with their own appearance, to psychological maladjustment, and nutritional disorders. This quantitative, exploratory, and cross-sectional research evaluates how adolescents perceive their weight and the prevalence of obesity in a sample of adolescents from the district of Viseu (Portugal). It also attempted to compare the relation of body-image and obesity with sociodemographic (school, sex, age, socioeconomic status, family functioning), psychological (self-concept, depression, school success) and behavioral aspects (physical inactivity). After data analyses, it was verified that the prevalence of obesity was 8.8% but 12.7% considered themselves obese. These adolescents had higher physical inactivity, poorer family functioning, a lower self-concept, and a higher depression index. The really obese adolescents were older and had poorer academic results. Obesity was higher in boys, but girls perceived themselves more as being obese. In conclusion, it is essential to evaluate weight perception in addition to body mass index (BMI), because the main problem could be related not only to being obese, but also to the perception of having a higher than ideal weight.     

Does the eye know calculus? The threshold of representation in classical and connectionist models

The notion of representation lies at the crossroads of questions about the nature of belief and knowledge, meaning, and intentionality. But there is some hope that it might be simpler than all those. If we could understand it clearly, it might then help to explicate those more difficult notions. In this paper, my central aim is to find a principled criterion, along lines that make biological sense, for deciding just when it becomes theoretically plausible to ascribe to some process or state a representational role. I shall be especially concerned with some differences, in this regard, between classical and connectionist models. The relation between ‘standard’ artificial intelligence and connectionism turns out to illustrate a ‘first in, last out’ principle: What we most easily understand (and so can program) is what we have most recently invented; tasks we ourselves perform best, by contrast, are a lot harder to understand. Classical AI has modelled the former; connectionism tries to tackle the latter. I end with some speculations about the possible implications of these considerations for our understanding of understanding.     

Structural environmental enrichment and the way it is offered influence cognitive judgement bias and anxiety-like behaviours in zebrafish

Animal Cognition - Environmental enrichment in zebrafish generally reduces anxiety-related behaviours, improves learning in maze trials and increases health and biological fitness. However, certain...