Well, a simple answer would be 'no', but there's more to it.
The human species seek answers to everything. Instinctively, we dislike the thought of being ignorant, and with good reason. The problem is that we do not seek 'truth', we seek answers, solutions. All kinds of prejudice, discrimination and their sub-types originate from our instinctual tendency to draw conlusions based on incomplete information.
When you see a person, you subconsciously draw conclusions based on their outside appearance and your state of mind.
The fact is that your senses do not send you unadulterated data. That monster in your closet? The man whispering? The woman giving you the 'come hither' attitude? It doesn't have to be true. Interpretation and perception, those are the essential tools for understanding, but also for misunderstanding.
Basically, when you see the potential candidate for the 'love at first sight'-experiment, you can think of it as a blank template. You have no information so you draw conclusions out of what you do have. Love at first sight is an occurence where we fill the template with the answers we find most attractive. Remember though, it could be done in the complete oppisite way, simply by filling all the blanks with things we hate and/or despise.
That's my take on it anyway.