Due to the work of the past, we have already identified the brain structure that controls the activity of the key vocal organs, sarnix, located in the throat of the birds. This new research by New York University’s Zetian Yang and Michael Long managed to keep the electrode in the brain area and track the activity of neurons while the birds were awake and were going into routine activities. Because of this, they can connect neurological activity with any sound done by birds. Badrigers’ L, they had more than a thousand calls from each of the four birds, which contained electrodes.
For zebra Finch, nerve activity showed a pattern that was time -consuming during the preparation of the songs. The same neurons were the most dynamic at the same place of the song. You can think of it as a player like a Pano Central Organizing Rule, when different notes are played. “Different structures [of neurons] Yang and longer, describing this style, are dynamic at different moments, representing a developing population ‘barcode’.
It is not at all that was seen with Budragers. Here, instead, they saw samples where the same population of neurons was active when the bird was producing a similar sound. They broke the Warballs into parts that have a scale from a scale from harmonic to noise. They found that whenever the warble was compatible, the groups of neurons were more vibrant, and when their noise was raised, different groups increased. These observations caused them to identify the third population, which was active, whenever the Budragers created less frequency.
In addition, Yang and Long analyzed the sound pitch. Only half of the neurons in the respective region of the brain were linked to the pitch. However, half that were connected were small groups of neurons who fired during the preparation of a relatively tight range. They can use at least five individual neurons activity and at the moment they can predict sound pitch.