21. This automatic processing occurs in the secondary auditory cortex . 22. The auditory cortex is the most highly organized processing unit of sound in the brain. 23. The neurons of the auditory cortex of the brain are able to respond to pitch. 24. Within this, her research covers the roles of streams of processing in auditory cortex , cochlear implants. 25. From there they enter the primary auditory cortex , which contains cells that specialize in particular frequencies. 26. The P1 neural generators are thought to originate from the thalamo-cortical portion of the auditory cortex . 27. This implies that within the secondary auditory cortex , processes underlie the phenomenological impression of imagined sounds. 28. While the new work implicates the auditory cortex , " it doesn't say the problem begins there," 29. Dr . Zador's research has focused on understanding the circuits of the auditory cortex in rodents. 30. Bilateral neural activity in the secondary auditory cortex was associated with both perceiving and imagining songs.