Lecture 25 Flashcards
what do birds need to do to master a song?
learn to sing song themselves and be able to hear themselves throughout the learning process
whats the process in birds to learn a song?
- internalize mental representation of song then retrieve during practice to assess own performance
can birds learn songs accurately if deaf?
if they become deaf after hearing the song of a conspecific then yes but if deaf then trying to learn to sing then unable to sing accurately
how does performance monitoring work in songbords?
create a template of the songs that are retrieved during performance and compare it to the actual signal to check whether intended and actual output are the same
what is needed to do behavioral corrections?
error signals
difficulty in songbirds to master a song without hearing themselves is parallel to ________ ___________ in deaf children
language acquisition
what are songbirds a good model of?
human speech learning which proves to be valuable bc vocal learning that is complex is rare in animal kingdom
what is the network of brain structures in songbirds referred to as?
song system
what regions are part of the song system?
planning/executing motor commands- motor control
perceptual learning sounds - processing auditory info
evaluating auditory feedback- evaluating auditory feedback
what does the motor pathway consist of?
HVc and RA
what does the HVc and RA correlate to?
song production
what do lesions in HVc/RA nuclei do?
prevent normal learning of songs and muteness
whats the purpose of HVc?
encode higher-level song structure
- separating the beginning, middle and end of a song
what does microstimulation to HVc cause?
birds to restart song
what’s the purpose of RA?
encode more local-level info
- individual notes
what does microstimulation of RA cause?
changes the way individual notes sound