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Andrew H. Bass


W239 Seeley G. Mudd Hall
Cornell University
Ithaca, NY 14853

Phone: (607) 254-4372
Fax: (607) 254-1303

Research Interests

Research in our laboratory focuses on two projects concerning the central and peripheral nervous systems of sound-producing/ "vocalizing" teleost fishes: (1) Characterization, and hormonal influences on, sex differences in the morphology of single, physiologically-identified neurons. (2) Temporal and spectral encoding of acoustic communication signals. These projects revolve around studies of alternative mating tactics in species wth two male morphs that differ in a large suite of behavioral, neurobiological and neuroendocrine characters including divergent acoustic courtship behaviors and vocal control pathways. We answer questions regarding the existence of behaviors and their underlying mechanisms using a multidisciplinary, neuroethological approach that combines field studies of vocal communication with laboratory studies of the nervous system that utilize one or more of the following approaches: neurophysiology combined with anatomical tract tracing, neuroendocrinology, electron microscopy, immunocytochemistry, and in situ hybridization. Link to Lab Page.

Some Recent Bass Lab Publications

Bass, A. H and B. Chagnaud (2012) Shared developmental and evolutionary origins of neural basis of vocal-acoustic and pectoral-gestural signaling. Proceedings of the National Academy of Sciences (USA)

Chagnaud, B., M. C. Zee, R. Baker, and A. H. Bass (2012) Innovations in motoneuron synchrony drive rapid temporal modulations in vertebrate acoustic signaling. Journal of Neurophysiology Mar 14 [Epub ahead of print].

Chagnaud, B., R. Baker, and A. H. Bass (2011) Vocalization frequency and duration are coded in separate hindbrain nuclei. Nature Communications 2:346, June 14 2011 (online publication) DOI: 10.1038/ncomms1349

Rice, A., Land, B. R., and A. H. Bass (2011) Nonlinear acoustic complexity in a fish “two-voice” system. Proceedings of the Royal Society Series B 278: 3762-3768. DOI:10.1098/rspb.2011.0656

Rohmann, K. N., and A. H. Bass (2011) Seasonal plasticity of auditory hair cell frequency sensitivity correlates with plasma steroid levels in a vocal fish. Journal of Experimental Biology 214:1931-1942.

Arterbery, A. S, D. J. Fergus, E. A. Fogarty, J, Mayberry ,D. L. Deitcher, W. L. Krausand A. H. Bass (2011) Evolution of ligand specificity in verebrate corticosteroid receiptors. BMC Evolutionary Biology, Jan 14, 11:14.

Forlano, P.M., and A. H. Bass (2011) Neural and hormonal mechanisms of reproductive-related arousal in fishes. Hormones and Behavior 59:616-629.

Ma, L-H., E. Gilland, A. H. Bass and R. Baker (2010) Ancestry of innervation to pectoral fin and forelimb. Nature Communications 1: 1-8 (July 27 2010).

Forlano, P. M., M. A. Marchaterre, D. L. Deitcher and A. H. Bass (2010) Distribution of androgen receptor mRNA expression in vocal, auditory and neuroendocrine circuits in a teleost fish. Journal of Comparative Neurology 518 (4): 493-512.

Rubow, T. K. and A. H. Bass (2009) Reproductive and diurnal rhythms regulate vocal motor plasticity in a teleost fish. Journal of Experimental Biology 212: 3252-3262.

Rohmann, K. N., D. L. Deitcher and A. H. Bass (2009) Calcium-activated potassium (BK) channels are encoded by duplicate slo1 genes in teleosts. Molecular Biology and Evolution 26(7) 1509-1521.

Bass, A. H., E. Gilland and R. Baker (2008) Evolutionary origins for social vocalization in a vertebrate hindbrain-spinal compartment. Science 321: 417-421 (also Perspective by D. Margoliash and M. E. Hale, pp. 347-348).

Remage-Healey, L. H. and A. H. Bass (2007) Plasticity in brain sexuality is revealed by the rapid actions of steroid hormones. The Journal of Neuroscience 27 (4): 1114-1122. doi:10.1523/JNEUROSCI.4282-06.2007

Santangelo, N. and A. H. Bass (2006) New insights into neuropeptide modulation of aggression: Field studies in a territorial tropical damselfish. Proceedings of the Royal Society, Series B (London). 273(1605): 3085-3092. DOI: 10.1098/rspb.2006.3683.

Kittelberger, J. M., B. R. Land and A. H. Bass (2006) The midbrain periaqueductal gray and vocal patterning in a teleost fish. Journal of Neurophysiology 96: 71-85. doi:10.1152/jn.00067.2006

Weeg, M. S., B. R. Land and A. H. Bass (2005) Temporal Modulation of efferents to the inner ear and lateral line by central vocal pathways. The Journal of Neuroscience 25, 5967-5974.

Sisneros, J., P. Forlano, D. Deitcher and A. H. Bass (2004) Steroid-dependent auditory plasticity leads to adaptive coupling of sender and receiver. Science 305: 404-407 (chosen for Perspective, 305: 349). DOI: 10.1126/science.1097218

Goodson, J. L. and A. H. Bass (2001) Behavioral and anatomical characteristics of vasotocin/vasopressin systems in vertebrates: conservation and diversification. Brain Research Reviews 35: 246-265 [plus 36: 91-94].

Goodson, J. L. and A. H. Bass (2000) Forebrain peptide modulation of sexually polymorphic vocal motor circuitry. Nature 403: 769-772.

Popular Press Articles

Courses Taught

Introduction to Neurobiology; Brain Evolution and Behavior