dyssynchronization vs dyssynchrony

dyssynchronization

noun
  • incorrect 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 dyssynchronization and dyssynchrony occurred in a corpus of books? (source: Google Ngram Viewer )