Magnetoencephalography adaptation reveals depth-cue-invariant object representations in the visual cortex.

Independent of edges and 2-D shape that can be highly informative of object identity, depth cues alone can also give rise to vivid and effective object percepts. The processing of different depth cues engages segregated cortical areas, and an efficient object representation would be one that is invariant to depth cues. Here, we investigated depth-cue invariance of object representations by measuring the category-specific response to faces-the M170 response measured with magnetoencephalography.

Impact of public dental care spending and insurance coverage on utilization disparities among Canadian jurisdictions.

Objective: To investigate the role of public dental care spending and insurance coverage on dental services utilization disparities among different Canadian jurisdictions.

Methods: We utilized Canadian Institute for Health Information provincial/territorial per capita estimates for public dental care expenditure, public information on legislated dental care programs, and oral health data from the 2007-2008 Canadian Community Health Survey to make inferences regarding the relationship between dentist visits in the past 12 months and self-perceived oral health. We performed descriptive statistics and binary logistic regression analysis to determine the relationship between dentist visits and self-perceived oral health status at the provincial/territorial level and on stratified data based on three age groups - children (12-17 years), adults (18-64 years), and seniors (65 years and older).

Investigating the "inverse care law" in dental care: A comparative analysis of Canadian jurisdictions.

Objectives: To compare physician and dentist visits nationally and at the provincial/territorial level and to assess the extent of the "inverse care law" in dental care among different age groups in the same way.

Methods: Publicly available data from the 2007 to 2008 Canadian Community Health Survey were utilized to investigate physician and dentist visits in the past 12 months in relation to self-perceived general and oral health by performing descriptive statistics and binary logistic regression, controlling for age, sex, education, income, and physician/dentist population ratios. Analysis was conducted for all participants and stratified by age groups - children (12-17 years), adults (18-64 years) and seniors (65 years and over).

Are face representations depth cue invariant?

The visual system can process three-dimensional depth cues defining surfaces of objects, but it is unclear whether such information contributes to complex object recognition, including face recognition. The processing of different depth cues involves both dorsal and ventral visual pathways. We investigated whether facial surfaces defined by individual depth cues resulted in meaningful face representations-representations that maintain the relationship between the population of faces as defined in a multidimensional face space.