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comment What makes us look into camera lens when we're being filmed?
I would say it is just that we feel being watched by it, and when something watches us, we feel more confortable looking it in the eyes (or lens). I know there is some research on this topic done with robots (which also only look through cameras), I just can't remember more details. Of course, a robot is more than just plain camera, but I think it is the same matter. We see faces in everything and we see observers in cameras, because it is important for us to not miss them. Who knows what they are up to :)
comment Do humans mentally discretize numbers?
I am not familiar with any research on this topic, but for myself I like to see my progress as often as possible. I also want to know if I got better since the previous try. So a scale of 0-100 would be much more meaningful than a scale of A-F. Even though I also have tendency to round numbers (this seems natural to me - we do use categorization in other domains so why not with numbers..), I would much rather appreciate score with finer scale. Especially in a game where I can see my score changing over time. A-F would not change that often and I wouldn't get feedback on my progress.
comment Any research on right-hand/left-hand based preferences when interacting with an interface?
I agree with Xurtio and Phoenix: we are indeed used to do lots of things like right-handed and this convence is more important than our need to have it otherwise. But I appreciate you trying to change that. If there would be considerable amount of webs and software for left-handed people, our left-handed kids could get used to hold the mouse in their left hand. It may be too late for some of us, but this is great idea anyway.
comment Why do drivers not slow down when they see signs indicating road work?
@Jeff, I believe you've said pretty much the same as I read in the interpretation. 'It's much more likely'.. hence 'I expect' I won't run him over, 'I see I can't avoid' hence 'I expect' to run over it. To green: Yes, I believe the interpretation is right. To learn more about this effect and this kind of decision making, you could browse through experiments on that, though I can not think of any particular right now. This decision seems natural to me: one may expect, that workers are aware of the risk and won't cross the road - on the other hand an object already on the road is sure hit.
comment Do action video games have an effect on spatial skills?
The graph looks like the effect is significant for women..
comment What skills are required to build simulations of the human brain?
Wow that is one big question.
comment How to explain emoticons to an autistic person?
She has access to the internet and she has access to your explanations. If she cannot search, use or remember the information for five minutes, I don't think you will be able to teach her this via IRC.
comment How to measure student activity, participation, tendency to ask questions, etc?
We've been thinking primary, but other are also possible. The effects should be visible on all levels, but are probably originated at the beginning of education.