Steroid-dependent auditory plasticity leads to adaptive coupling of sender and receiver.
For seasonally breeding vertebrates, reproductive cycling is often coupled with changes in vocalizations that function in courtship and territoriality. Less is known about changes in auditory sensitivity to those vocalizations. Here, we show that nonreproductive female midshipman fish treated with either testosterone or 17beta-estradiol exhibit an increase in the degree of temporal encoding of the frequency content of male vocalizations by the inner ear that mimics the reproductive female's auditory phenotype. This sensory plasticity provides an adaptable mechanism that enhances coupling between sender and receiver in vocal communication.
Sisneros
Joseph A
JA
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA. sisneros@u.washington.edu
Forlano
Paul M
PM
Deitcher
David L
DL
Bass
Andrew H
AH
D000161:Acoustic Stimulation; D000222:Adaptation, Physiological; D000818:Animals; D001309:Auditory Threshold; D024541:Batrachoidiformes / Q000502:physiology*; D004958:Estradiol / Q000097:blood / Q000494:pharmacology*; D047628:Estrogen Receptor alpha; D005260:Female; D006198:Hair Cells, Auditory / Q000502:physiology; D006309:Hearing / Q000502:physiology*; D008297:Male; D009475:Neurons, Afferent / Q000187:drug effects / Q000502:physiology*; D010641:Phenotype; D011897:Random Allocation; D011960:Receptors, Estrogen / Q000235:genetics / Q000378:metabolism; D012098:Reproduction; D012444:Saccule and Utricle / Q000187:drug effects / Q000294:innervation* / Q000502:physiology; D012621:Seasons; D012726:Sexual Behavior, Animal; D013739:Testosterone / Q000097:blood / Q000494:pharmacology*; D000159:Vestibulocochlear Nerve / Q000502:physiology; D014828:Vocalization, Animal
D047628:Estrogen Receptor alpha; D011960:Receptors, Estrogen; D013739:Testosterone; D004958:Estradiol