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Are you trying to measure something specific to the stimulus you are presenting or is it just a matter of displaying text on a screen where what you are measuring is unrelated to the text per se? For instance, experiments I run depend on the stimulus presentation. We are targeting a certain visual pathway, so for example one stimulus is red/green and high ...


Well for one, the first neurons to decode this symbol are orientation neurons, in V1 of the primary visual cortex. So some neurons have enhanced firing for say a 45 degree angle, and neighboring neurons for a 46 degree angle, and so on. Higher up the processing stream groups of neurons respond to shapes, that are a conglomerate of the orientation lines. Then ...


This is not about the physics of time at all, It's about the psychology of feeling time!


You say you are "aware that all tasks that a person undertakes involve both halves of the brain". Then, On what kind of patients would this hypothetical test be suitable as healthy people use both hemisphere and split brain use just one hemisphere depending on the drawing hand ? If you refer to healthy patients I don't think such a test is possible. For ...


It is relevant because we see it often. New "stuff" is created with golden ratio, so we will see it even more, and it will be even more familiar. People accept and "like" familiar things easier than unfamiliar. Perhaps, for very open minded people, effect would not be so strong.


other answers are helpful but what is missing from them so far is that there seems to be basic golden ratios built into the natural human body proportions eg relative dimensions of body parts, including esp in the face dimensions, which is highly oriented with perception of beauty (but dont have an immediate authoritative/scientific ref for this). not sure ...


My problem with explaining the illusion in terms of complementary colours using the opponent process theory is that the two alternating colours, red and blue, in the illusion aren't actually complementary, at least not according to the colour chart in Keegan's answer where red complements green and blue complements yellow. The theory might well account for ...

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