CELL-DEATH AND NEURONAL RECRUITMENT IN THE HIGH VOCAL CENTER OF ADULT MALE CANARIES ARE TEMPORALLY RELATED TO CHANGES IN SONG

被引:145
作者
KIRN, J [1 ]
OLOUGHLIN, B [1 ]
KASPARIAN, S [1 ]
NOTTEBOHM, F [1 ]
机构
[1] ROCKEFELLER UNIV,FIELD RES CTR,MILLBROOK,NY 12545
关键词
NEUROGENESIS; NEURONAL REPLACEMENT; SONG LEARNING; REJUVENATION SEASONALITY;
D O I
10.1073/pnas.91.17.7844
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Adult male canaries modify their song every year. Most of these changes occur during late summer and early fall, after the end of the breeding season, and in late winter, immediately before the onset of the next breeding season. The high vocal center (WC) is an important nucleus in the brain pathway that controls this learned behavior. New neurons continue to be added to the HVC of adult male canaries, where they replace older neurons that have died. The present report describes the monthly incidence of cell death and neuronal addition in the HVC of such birds. Different groups of 1- to 2-year-old male canaries were treated with [H-3]thymidine, a marker of cell birth, during each month of the year and killed 27 days later. The ratio of H-3-labeled neurons to all neurons in the HVC showed seasonal peeks and troughs. This ratio was highest in October and March. Peaks in the ratio of pycnotic (dying) HVC cells to all neurons in HVC preceded the peaks in the ratio of H-3-labeled neurons. We suggest that seasonal peaks in cell loss and neuronal recruitment in HVC are related to endocrine changes and that all three play a role in the seasonality of song modification.
引用
收藏
页码:7844 / 7848
页数:5
相关论文
共 25 条
[1]   MIGRATION OF YOUNG NEURONS IN ADULT AVIAN BRAIN [J].
ALVAREZBUYLLA, A ;
NOTTEBOHM, F .
NATURE, 1988, 335 (6188) :353-354
[2]   BIRTH OF PROJECTION NEURONS IN ADULT AVIAN BRAIN MAY BE RELATED TO PERCEPTUAL OR MOTOR LEARNING [J].
ALVAREZBUYLLA, A ;
KIRN, JR ;
NOTTEBOHM, F .
SCIENCE, 1990, 249 (4975) :1444-1446
[3]   HIGH VOCAL CENTER GROWTH AND ITS RELATION TO NEUROGENESIS, NEURONAL REPLACEMENT AND SONG ACQUISITION IN JUVENILE CANARIES [J].
ALVAREZBUYLLA, A ;
LING, CY ;
NOTTEBOHM, F .
JOURNAL OF NEUROBIOLOGY, 1992, 23 (04) :396-406
[4]   BIRTH OF PROJECTION NEURONS IN THE HIGHER VOCAL CENTER OF THE CANARY FOREBRAIN BEFORE, DURING, AND AFTER SONG LEARNING [J].
ALVAREZBUYLLA, A ;
THEELEN, M ;
NOTTEBOHM, F .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1988, 85 (22) :8722-8726
[5]  
ALVAREZBUYLLA A, 1994, IN PRESS J COMP NEUR
[6]   ULTRASTRUCTURAL CHARACTERIZATION OF SYNAPTIC TERMINALS FORMED ON NEWLY GENERATED NEURONS IN A SONG CONTROL NUCLEUS OF THE ADULT CANARY FOREBRAIN [J].
BURD, GD ;
NOTTEBOHM, F .
JOURNAL OF COMPARATIVE NEUROLOGY, 1985, 240 (02) :143-152
[7]   CELL-DEATH OF MOTONEURONS IN CHICK-EMBRYO SPINAL-CORD .1. LIGHT AND ELECTRON-MICROSCOPIC STUDY OF NATURALLY OCCURRING AND INDUCED CELL LOSS DURING DEVELOPMENT [J].
CHUWANG, IW ;
OPPENHEIM, RW .
JOURNAL OF COMPARATIVE NEUROLOGY, 1978, 177 (01) :33-57
[8]   DELINEATION OF A BRAIN NUCLEUS - COMPARISONS OF CYTOCHEMICAL, HODOLOGICAL, AND CYTOARCHITECTURAL VIEWS OF THE SONG CONTROL NUCLEUS HVC OF THE ADULT CANARY [J].
GAHR, M .
JOURNAL OF COMPARATIVE NEUROLOGY, 1990, 294 (01) :30-36
[9]   NEURONAL PRODUCTION, MIGRATION, AND DIFFERENTIATION IN A VOCAL CONTROL NUCLEUS OF THE ADULT FEMALE CANARY BRAIN [J].
GOLDMAN, SA ;
NOTTEBOHM, F .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES, 1983, 80 (08) :2390-2394
[10]  
KIRN JR, 1989, J NEUROSCI, V9, P3176