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There are some examples of this.

What makes us:

  • Feel we just HAVE TO watch that video or an image again, it's common with comedy videos
  • Feel we need to stare at a such a beautiful sight, a person or an image

It's not that something is particularly interesting to the conscious mind, but yet we still can't resist but watch.

What's the science behind this process?

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Could you provide some of those examples? – Nick Stauner Apr 1 '14 at 20:33
Posting a comedy video or a beautiful woman's picture wouldn't be appropriate. I think the description was clear. – Ivan Ivković Apr 1 '14 at 20:49
You don't have to post them to describe them more specifically, but I don't think it would be inappropriate to offer links as far as the site is concerned. It's only unclear how you intend to exclude conscious interest (and what initial research you've done, if any). Otherwise as is, this is a very broad question, so it's hard to imagine where an answer should begin, let alone end...Nonetheless, I've got a simple idea I can offer in case you're not looking for an especially deep answer. – Nick Stauner Apr 1 '14 at 23:07
up vote 1 down vote accepted

Setting aside the encyclopedic issue of what might make an unspecified stimulus funny, beautiful, or otherwise pleasing for its , it's at least evident that you're asking about reinforcing stimuli that provide incentives via al reward(s). It's not clear how you expect to rule out conscious interest, but reinforcement learning may not necessitate consideration of conscious control, so I suppose we can disregard the whole issue of at this level of generality (or ambiguity/vagueness). That is essentially the approach of radical , after all.

Aside from the tags and links included so far, there's plenty of science available on psychological reward:

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