all of us can may have had the memory of, and taste a favourite food conjured up by the mentioning of the food.
Synaethesia is a rare condition involving the crossing of the senses , some people will have synaesthetic tastes produced by words the names of a food, lexical- gustatory synaesthesia. They taste the taste even before the word is said. That is on the tip of the tongue.
This is a genuine neurological phenomenon , and is one component of the complex reresentation of the meaning of words.
Everyone has this phenomenon but those with true synaesthesia have a more exagerated response.
Simner J and Ward J Nature 2006 , 444, 438
- Martin Eastwood