I had a discussion with my friend recently about slip-ups in speech - the ones where you intented a gramatically correct sentence but somewhere between the conscious mind and your mouth a (usually small but often times a rather unexpected) mistake occurs.
My question is whether this phenomenon arises in the same way in the brain (what happens?) as a analogous mistake in writing, where one might for example mistype a letter, or put one too many bellies on a 'B' etc. Or in an even broader view, how does this compare to mistakes in a well trained movement, e.g. while playing a guitar a finger escapes its well-intentioned, and many times practised passage to an unexpected fret?