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Reflections In A Mirror, Damian Cox
Reflections In A Mirror, Damian Cox
Damian Cox
In this paper, I develop a solution to the puzzle of mirror perception: why do mirrors appear to reverse the image of an object along a left/right axis and not around other axes, such as the top/bottom axis? I set out the different forms the puzzle takes and argue that one form of it – arguably the key form – has not been satisfactorily solved. I offer a solution in three parts: setting out the conditions in which an apparent left/right reversal of mirror images is generated; explaining why these conditions are so often met; explaining why we are cognitively …
Dot Polarity In Dynamic Glass Patterns, Dawn Vreven, Timothy Petersik, Jim Dannemiller, Jamie Schrauth
Dot Polarity In Dynamic Glass Patterns, Dawn Vreven, Timothy Petersik, Jim Dannemiller, Jamie Schrauth
Dawn L Vreven
Each frame of a Glass pattern consists of a random placement of dots and a spatially shifted copy of this pattern. Thus, each dot has a partner, forming dot-pair dipoles. When shown in succession, motion is perceived along the axis of the spatial shift. The perception of motion in dynamic Glass patterns is believed to be a two-stage process: first, local orientation detectors respond to the orientation signal in the dot-pair dipole; and second, global detectors integrate local orientation signals. We examined the ability to detect rotation in dynamic Glass patterns whose dipoles contained a) the same polarity, b) opposite …