asynchrony vs dyssynchrony

asynchrony

noun
  • The state of being asynchronous, or out of synchronization 

dyssynchrony

noun
  • A neurological condition wherein auditory stimuli are not processed synchronously. 

  • A medical condition wherein the activation of different parts of the heart is improperly synchronized. 

How often have the words asynchrony and dyssynchrony occurred in a corpus of books? (source: Google Ngram Viewer )