T. Devoogd

Publications81
h-index34
Citations4,263
Highly Influential Citations158
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Seasonal variation in hippocampal volume in a food-storing bird, the black-capped chickadee.
Black-capped chickadees (Parus atricapillus) in upstate New York show a peak in food-hoarding intensity in October. We caught chickadees at six different times of the year and measured the volume of… Expand
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  • 18
Relations between song repertoire size and the volume of brain nuclei related to song: comparative evolutionary analyses amongst oscine birds
Song and brain structure are compared amongst 41 species of oscine birds by using the method of independent evolutionary contrasts. We find a significant correlation between the relative volume of… Expand
  • 254
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Genesis and death of vocal control neurons during sexual differentiation in the zebra finch
  • J. R. Kirn, T. Devoogd
  • Biology, Medicine
  • The Journal of neuroscience : the official…
  • 1 September 1989
Several song-related regions in the adult zebra finch brain have substantially more neurons in males than in females. Such differences appear to arise from sex differences in circulating steroids… Expand
  • 176
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Seasonal changes in neuron numbers in the hippocampal formation of a food-hoarding bird: the black-capped chickadee.
The volume of the hippocampal formation (HF) in black-capped chickadees (Poecile atricapillus) varies across the seasons, in parallel with the seasonal cycle in food hoarding. In this study, we… Expand
  • 79
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Song-related brain regions in the red-winged blackbird are affected by sex and season but not repertoire size.
Previous work in songbirds has delimited a neural system responsible for song production and control. Earlier studies have suggested that functional capacity in the song system may be related to the… Expand
  • 134
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Morphology of Golgi‐impregnated neurons in hyperstriatum ventralis, pars caudalis in adult male and female canaries
Golgi‐impregnated neurons in the song control nucleus hyperstriatum ventralis, pars caudalis (HVc) in male and female canaries (Serinus canarius) have been divided into classes, primarily on the… Expand
  • 65
  • 6
Female zebra finches require early song exposure to prefer high-quality song as adults
Song learning in songbirds has been studied extensively in males but not in females. Females prefer songs previously heard, but it is not known whether opportunity for learning during the juvenile… Expand
  • 100
  • 6
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Gonadal hormones induce dendritic growth in the adult avian brain.
Ovariectomized adult female canaries were treated with physiological doses of testosterone, dihydrotestosterone, or estradiol. Singing, which is typical of males, occurred in the testosterone-treated… Expand
  • 383
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Effects of captivity and testosterone on the volumes of four brain regions in the dark-eyed junco (Junco hyemalis).
This study investigates the effects of captivity and testosterone treatment on the volumes of brain regions involved in processing visual and spatial information in adult dark-eyed juncos (Junco… Expand
  • 49
  • 5
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White-throated sparrow morphs that differ in song production rate also differ in the anatomy of some song-related brain areas.
White-throated sparrows are unusual among songbirds in that they occur in two color morphs, white-striped and tan-striped, determined by a chromosomal inversion and maintained by negative assortative… Expand
  • 41
  • 5