Understanding sentences

That semantic context can affect word processing before recognition

there is a delay of activation for words that are semantically inappropriate

• negative polarity peaks at 400ms after onset of a stimulus. 
• Incongruous words will increase activity.

context effects that occur after recognition

words that frequently occur together may be connected in the lexicon (eg. doctor-nurse) so we get faster recognition in the context of the other word

Where the context of a whole paragraph drives priming rather than word-word connections

It's easier to select a high frequency meaning (eg. writing pen vs pig pen)

analysing the grammatical structure of a sentence