Publication Date:
2000-10-29
Description:
Songbirds learn a correspondence between vocal-motor output and auditory feedback during development. For neurons in a motor cortex analog of adult zebra finches, we show that the timing and structure of activity elicited by the playback of song during sleep matches activity during daytime singing. The motor activity leads syllables, and the matching sensory response depends on a sequence of typically up to three of the preceding syllables. Thus, sensorimotor correspondence is reflected in temporally precise activity patterns of single neurons that use long sensory memories to predict syllable sequences. Additionally, "spontaneous" activity of these neurons during sleep matches their sensorimotor activity, a form of song "replay." These data suggest a model whereby sensorimotor correspondences are stored during singing but do not modify behavior, and off-line comparison (e.g., during sleep) of rehearsed motor output and predicted sensory feedback is used to adaptively shape motor output.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dave, A S -- Margoliash, D -- MH11615/MH/NIMH NIH HHS/ -- MH59831/MH/NIMH NIH HHS/ -- MH60276/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2000 Oct 27;290(5492):812-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Organismal Biology and Anatomy, University of Chicago, 1027 East 57 Street, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11052946" target="_blank"〉PubMed〈/a〉
Keywords:
*Acoustic Stimulation
;
Action Potentials
;
Animals
;
Feedback
;
Learning/*physiology
;
Male
;
Motor Neurons/physiology
;
Neurons/*physiology
;
Neurons, Afferent/physiology
;
Prosencephalon/*physiology
;
Sleep/physiology
;
Songbirds/*physiology
;
Vocalization, Animal/*physiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
