There is now compelling evidence that motor imagery (MI) promotes motor learning. While MI has been shown to influence the early stages of the learning process, recent data revealed that sleep also contributes to the consolidation of the memory trace. How such “online” and “offline” processes take place and how they interact to impact the neural underpinnings of movements has received little attention. The aim of the present review is twofold: i) providing an overview of recent applied and fundamental studies (...) investigating the effects of MI practice on motor learning, and ii) detangling applied and fundamental findings in support of a sleep contribution to motor consolidation after MI practice. We conclude with an integrative approach of online and offline learning resulting from intense MI practice in healthy participants, and underline research avenues in the motor learning/clinical domains. (shrink)

BackgroundResearch ethics and the measures deployed to ensure ethical oversight of research (e.g., informed consent forms, ethics review) are vested with extremely important ethical and practical goals. Accordingly, these measures need to function effectively in real-world research and to follow high level standards.MethodsWe examined approved consent forms for Magnetic Resonance Imaging (MRI) and functional Magnetic Resonance Imaging (fMRI) studies approved by Canadian research ethics boards (REBs).ResultsWe found evidence of variability in consent forms in matters of physical and psychological risk reporting. (...) Approaches used to tackle the emerging issue of incidental findings exposed extensive variability between and within research sites.ConclusionThe causes of variability in approved consent forms and studies need to be better understood. However, mounting evidence of administrative and practical hurdles within current ethics governance systems combined with potential sub-optimal provision of information to and protection of research subjects support other calls for more scrutiny of research ethics practices and applicable revisions. (shrink)

Issus de deux journées d’étude organisées en 2008 et 2010 dans le cadre du programme de recherche « Modèles familiaux et cultures politiques » (École française de Rome), les neuf articles de ce volume examinent la construction des liens familiaux à l’époque moderne dans des territoires (Italie, France, espace germanique, péninsule Ibérique et son empire) et des configurations politiques, juridiques, sociales et économiques variées. La première partie s’attache à la formation du lien matrimon...

Du renforcement de la « monarchie paternelle » à l’existence d’un « empire des mères », la confrontation des sources du droit civil et des archives criminelles du Châtelet, au premier XVIIIe siècle, donne une vision complexe des rapports noués entre l’expérience de la maternité et l’exercice de l’autorité. Statutairement, les mères légitimes sont associées, sur un mode mineur ou de plein droit dans le cas du veuvage et de l’institution tutélaire, à l’exercice de l’autorité paternelle. Mais en débordant ces (...) catégories juridiques admises, en les utilisant à leur avantage ou en les contournant, les mères de la société parisienne se révèlent plus autoritaires que tendres, usant des prérogatives du patriarche, tout en revendiquant l’existence d’une sphère d’autorité purement féminine, dont elles assurent d’ailleurs, avec leurs filles, la reproduction. Par le biais des statuts octroyés ou des rôles assumés, les mères jouissent ainsi de pouvoirs, qui participent de l’institution paternelle et de la culture féminine. (shrink)

Following Karni's seminal work, Walker and other researchers have recently provided gradually convincing evidence that sleep is critical for the consolidation-based enhancement (CBE) of motor sequence learning. Studies in our laboratory using a motor adaptation paradigm, however, show that CBE can also occur after the simple passage of time, suggesting that sleep effects on memory consolidation are task-related, and possibly dependent on anatomically dissociable circuits.