PMID: 9548694Apr 21, 1998Paper

Methionine enkephalin immunoreactivity in the brain of the budgerigar (Melopsittacus undulatus): similarities and differences with respect to oscine songbirds

The Journal of Comparative Neurology
S E DurandS E Brauth

Abstract

The brain of the budgerigar (Melopsittacus undulatus), a small parrot that acquires new vocalizations throughout life, was examined for immunoreactivity to the opioid peptide methionine enkephalin (mENK). mENK is a highly prominent feature of the chemical architecture of the forebrain vocal system of oscine songbirds. Forebrain vocal control nuclei are believed to have evolved independently in parrots and songbirds (Streidter [1994] J. Comp. Neurol. 343:35-56); however, recent studies have found similarities in the neural organization of vocal control pathways in budgerigars and songbirds (Durand et al. [1997] J. Comp. Neurol. 377:179-206). Among the similarities are the existence of recursive pathways interconnecting vocal control neurons in the archistriatum, basal ganglia (i.e., lobus parolfactorius), and dorsal thalamus. In the present study, we found that all vocal control nuclei within the budgerigar forebrain exhibit prominent mENK-like immunoreactivity (ELI) in fibers and somata. We also found striking similarities between the morphology of ELI elements in budgerigar vocal control nuclei and that described previously in songbird vocal nuclei. Despite these similarities, the budgerigar dorsal striatopallidum (lobus parol...Continue Reading

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Citations

Dec 26, 2009·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Luke Remage-Healey, Andrew H Bass
Mar 16, 2000·The Journal of Comparative Neurology·E D Jarvis, C V Mello
Jul 6, 2004·The Journal of Comparative Neurology·Kazuhiro WadaMasatoshi Hagiwara
Aug 18, 2004·Annals of the New York Academy of Sciences·Mei-Fang Cheng, Sarah E Durand
Nov 28, 2002·The Journal of Comparative Neurology·Todd Freeman RobertsSteven Earle Brauth
Jun 25, 2015·PloS One·Mukta ChakrabortyErich D Jarvis

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