A synaesthete often see's a colour projected outside their "minds
eye". A non-synaesthete would merely perceive a colour or object or
taste within their "minds eye".
A synaesthete's perceptions are normally only one way. I get tastes from
words but I cannot automatically perceive a word when given a taste. There
have however been a few rare cases where the synaesthetic perceptions have
A synaesthete's perceptions are often thought to cause fairly strong
emotional reactions, usually pleasurable but they have been known to be
unpleasant in some cases.
A synaesthetic perception is quite often far more memorable than
the initial "normal" perception. For me, asked to remember a person called Sarah, I
more readily associate the taste of warm Cream Soda to the person than I
would her given name!