Hearing is seeing
The subconscious is always alert to things whether we realise it or not. Now some science has confirmed it.
The New Scientist has this interesting article about language and images. Hidden images are more readily seen by test subjects if the name of the object is mentioned beforehand. Scientists from universities in the States say this proves that language and sight are closely entwined. Have a look at the test on the right of the article and do the test yourself. Isn't that a good fact for Sunday morning!