Mentalese
Links
The Language of Thought
http://www.uniroma3.it/kant/field/lot.html
Essay on Fodor's Mentalese by Lawrence Kaye. From the Field Guide to the Philosophy of Mind.
The Language of Thought Hypothesis
http://plato.stanford.edu/entries/language-thought/
Entry in the Stanford Encyclopaedia by Murat Aydede, surveying the arguments for and against the proposition that thoughts are expressed in a mental language.