The relationship of neurogenesis and growth of brain regions to song learning
| Autor: | John R. Kirn |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Linguistics and Language
animal structures Neurogenesis Cognitive Neuroscience Experimental and Cognitive Psychology Sensory system Article Language and Linguistics Songbirds Speech and Hearing Neural Pathways Biological neural network Animals Learning Brain Flexibility (personality) Motor control Canto nervous system behavior and behavior mechanisms Vocal learning Vocalization Animal Psychology Neural development Neuroscience psychological phenomena and processes |
| Zdroj: | Brain and Language. 115:29-44 |
| ISSN: | 0093-934X |
| DOI: | 10.1016/j.bandl.2009.09.006 |
| Popis: | Song learning, maintenance and production require coordinated activity across multiple auditory, sensory-motor, and neuromuscular structures. Telencephalic components of the sensory-motor circuitry are unique to avian species that engage in song learning. The song system shows protracted development that begins prior to hatching but continues well into adulthood. The staggered developmental timetable for construction of the song system provides clues of subsystems involved in specific stages of song learning and maintenance. Progressive events, including neurogenesis and song system growth, as well as regressive events such as apoptosis and synapse elimination, occur during periods of song learning and the transitions between stereotyped and variable song during both development and adulthood. There is clear evidence that gonadal steroids influence the development of song attributes and shape the underlying neural circuitry. Some aspects of song system development are influenced by sensory, motor and social experience, while other aspects of neural development appear to be experience-independent. Although there are species differences in the extent to which song learning continues into adulthood, growing evidence suggests that despite differences in learning trajectories, adult refinement of song motor control and song maintenance can require remarkable behavioral and neural flexibility reminiscent of sensory-motor learning. |
| Databáze: | OpenAIRE |
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