Brief Communications Presynaptic Control of Rapid Estrogen Fluctuations in the Songbird Auditory Forebrain
نویسندگان
چکیده
Luke Remage-Healey,1,3 Stephanie Dong,1 Nigel T. Maidment,2 and Barney A. Schlinger1 1Department of Integrative Biology and Physiology, and Laboratory of Neuroendocrinology, Brain Research Institute, and 2Hatos Center for Neuropharmacology, University of California, Los Angeles, Los Angeles, California 90095, and 3Neuroscience and Behavior Program, Center for Neuroendocrine Studies, University of Massachusetts, Amherst, Massachusetts 01003
منابع مشابه
Presynaptic control of rapid estrogen fluctuations in the songbird auditory forebrain.
Within the CNS of vertebrates, estrogens can directly modulate neural circuits that govern a wide range of behaviors, including feeding, spatial navigation, reproduction, and auditory processing. The rapid actions of estrogens in brain (seconds to minutes) have become well established, but it is unclear how estrogens are synthesized and released within restricted temporal and spatial domains in...
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Recent evidence shows that brain-derived steroids such as estrogens ("neuroestrogens") are controlled in a manner very similar to traditional neurotransmitters. The advent of in vivo microdialysis for steroids in songbirds has provided new information about the spatial and temporal dynamics of neuroestrogen changes in a region of the auditory cortex, the caudomedial nidopallium (NCM). Here, exp...
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Catecholaminergic (CA) neurons innervate sensory areas and affect the processing of sensory signals. For example, in birds, CA fibers innervate the auditory pathway at each level, including the midbrain, thalamus, and forebrain. We have shown previously that in female European starlings, CA activity in the auditory forebrain can be enhanced by exposure to attractive male song for one week. It i...
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A quantitative model of auditory learning is presented to predict how auditory patterns are stored in the songbird auditory forebrain. This research focuses on the caudomedial nidopallium (NCM) in the songbird telencephalon, a candidate site for song perception and the formation of song auditory memories. The objective is to introduce simplified features of bird song that could be used by the a...
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The activity of sensory circuits is shaped by neuromodulators, which can have downstream consequences for both sensorimotor integration and behavioral output. Recent evidence indicates that brain-derived estrogens ("neuroestrogens") can act as local circuit modulators in the songbird auditory forebrain. Specifically, neuroestrogens fluctuate in the auditory caudomedial nidopallium (NCM) during ...
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