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- Title
Evaluating theories of bird song learning: implications for future directions.
- Authors
Margoliash, D.
- Abstract
Studies of birdsong learning have stimulated extensive hypotheses at all levels of behavioral and physiological organization. This hypothesis building is valuable for the field and is consistent with the remarkable range of issues that can be rigorously addressed in this system. The traditional instructional (template) theory of song learning has been challenged on multiple fronts, especially at a behavioral level by evidence consistent with selectional hypotheses. In this review I highlight the caveats associated with these theories to better define the limits of our knowledge and identify important experiments for the future. The sites and representational forms of the various conceptual entities posited by the template theory are unknown. The distinction between instruction and selection in vocal learning is not well established at a mechanistic level. There is as yet insufficient neurophysiological data to choose between competing mechanisms of error-driven learning and reinforcement learning. Both may obtain for vocal learning. The possible role of sleep in acoustic or procedural memory consolidation, while supported by some physiological observations, does not yet have support in the behavioral literature. The remarkable expansion of knowledge in the past 20 years and the recent development of new technologies for physiological and behavioral experiments should permit direct tests of these theories in the coming decade.
- Subjects
BIRDSONGS; LEARNING; NEUROPHYSIOLOGY; MEMORY; HEARING; HYPOTHESIS
- Publication
Journal of Comparative Physiology A: Neuroethology, Sensory, Neural & Behavioral Physiology, 2002, Vol 188, Issue 11/12, p851
- ISSN
0340-7594
- Publication type
Article
- DOI
10.1007/s00359-002-0351-5