This test has proved to be sensitive to mild cognitive deficits and to predict future cognitive decline in several cognitively impaired states, including Alzheimer's disease and dementias (see Davis et al., 2015 for complete review), Parkinson's disease ( Gill, Freshman, Blender & Ravina, 2008), chronic obstructive pulmonary disease ( Villeneuve et al., 2012), rapid eye movement sleep behavior disorder ( Gagnon, Postuma, Joncas, Desjardins & Latreille, 2010), Huntington's disease ( Mickes et al., 2010 Videnovic et al., 2010), cerebrovascular diseases ( Cameron, Ski & Thompson, 2012 Cumming, Bernhardt & Linden, 2011 Pendlebury, Cuthbertson, Welch, Mehta & Rothwell, 2010 Popovic, Seric & Demarin, 2007 Schweizer, Al-Khindi & Macdonald, 2012), human immunodeficiency virus ( Overton et al., 2013), traumatic brain injury ( de Guise et al., 2013), and cancer ( Olson et al., 2011). The Montreal Cognitive Assessment (MoCA Nasreddine et al., 2005) is a widely used cognitive screening tool that was originally designed for detection of mild cognitive impairment (MCI), a clinical state generally defined as the prodromal stage of several dementias depending on the cognitive impairment observed ( Petersen, 2004), and more specifically a prodromal stage of Alzheimer's Disease when mild amnesia is observed ( Albert et al., 2011). Moreover, early identification of prodromal dementia is essential in order to detect individuals in which further cognitive decline can be prevented or postponed using early interventions or treatments ( Alzheimer's Disease International, 2009). Given that aging is the most important risk factor for cognitive decline, detection of cognitive impairment in at-risk middle-aged and elderly individuals has become a research and clinical priority. In particular, the number of individuals with dementia worldwide is estimated to double every 20 years, from 35.6 million in 2010, to 65.7 million in 2030, to 115.4 million in 2,050 ( Prince et al., 2013).

This demographic trend has important economic, political, and societal implications. The number of individuals aged 60 years or over is expected to at least double by 2,050, reaching approximately 2 billion older individuals worldwide ( United Nations, 2013). Cognitive screening, Cognition, Neuropsychology, Montreal Cognitive Assessment, Aging, Norms Introduction

Moca score of 20