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The Role of Visual Cues in Body Size Estimation
Our body is central to what we define as our self. The mental representation of our physical appearance, often called body image, can have a great influence on our psychological health. Given the increase in body mass index worldwide and the societal pressure to conform to body ideals, it is important to gain a better understanding of the nature of body representations and factors that play a role in body size estimation tasks. This doctoral thesis takes a multifaceted approach for investigating the role of different visual cues in the estimation of own body size and shape by using a variety of experimental methods and novel state-of-the-art computer graphics methods. Two visual cues were considered: visual perspective and identity cues in the visual appearance of a body (shape, and color-information), as well as their interactions with own body size and gender. High ecological validity was achieved by testing body size estimation in natural settings, when looking into a mirror, and by generating biometrically plausible virtual bodies based on 3D body scans and statistical body models, and simulating real-world scenarios in immersive virtual reality.
Where are you? Self- and body part localization using virtual reality setups
This volume presents a line of original experimental studies on the bodily self, investigating where people locate themselves in their bodies and how accurate they are at localizing their body parts. So far, it was not well known whether people locate themselves in one or more specific regions of their bodies. On the other hand, some systematic distortions in indicating bodily locations were already documented. In the present studies, participants were therefore asked to indicate their self-locations, as well as the locations of several of their body parts, using a self-directed, first-person perspective pointing paradigm in various virtual reality (VR) setups (different head-mounted display...
Measuring, modelling and minimizing perceived motion incongruence for vehicle motion simulation
Humans always wanted to go faster and higher than their own legs could carry them. This led them to invent numerous types of vehicles to move fast over land, water and air. As training how to handle such vehicles and testing new developments can be dangerous and costly, vehicle motion simulators were invented. Motion-based simulators in particular, combine visual and physical motion cues to provide occupants with a feeling of being in the real vehicle. While visual cues are generally not limited in amplitude, physical cues certainly are, due to the limited simulator motion space. A motion cueing algorithm (MCA) is used to map the vehicle motions onto the simulator motion space. This mapping ...
In Defense of the Bush Doctrine
The terrorist attacks of September 11, 2001, shattered the prevalent optimism in the United States that had blossomed during the tranquil and prosperous 1990s, when democracy seemed triumphant and catastrophic wars were a relic of the past. President George W. Bush responded with a bold and controversial grand strategy for waging a preemptive Global War on Terror, which has ignited passionate debate about the purposes of American power and the nation's proper role in the world. In Defense of the Bush Doctrine offers a vigorous argument for the principles of moral democratic realism that inspired the Bush administration's policy of regime change in Iraq. The Bush Doctrine rests on two main pi...
Some Descendants of François Demers Dit Chedville (1773-1861) and Charlotte Davignon Dit Beauregard (1781-1832)
Andre Dumay/Dumetz/DeMers (1628-1711), son of Jean Dumay and Barbe Mauger of St. Jacques, Dieppe, Rouen, France, immigrated to Quebec where he married Marie Chefville/Chedville in Montreal in 1654. One descendant, Francois DeMers (1773-1861), was born in Chambly, Quebec. He married Marie Charlotte Davignon dit Beauregard in 1797 in St. Antoine de Longueuil, Quebec. Descendants lived in Canada, Minnesota, Illinois, New York, California, Nebraska, and elsewhere.
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