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Hamilton Farris, Ph.D.

Assistant Dean of Student Affairs and Records
Associate Professor-Research


Neuroscience Center  of Excellence
 

Department of Otorhinolaryngology & Biocommunication

Department of Cell Biology and Anatomy

Mailing Address:

Neuroscience Center
LSUHSC
2020 Gravier St.
New Orleans, LA 70112

Phone:
Lab: 504-599-0865

Email:
hfarri@lsuhsc.edu



Degrees


2002-2006: Postdoc, LSUHSC

2000-2002: Postdoc, University of Texas-Austin

1994-2000: Ph.D., Cornell University (Neurobiology & Behavior)

 

Bio

 

Awards/Recognitions/Lectures:

2014 Allen A. Copping Excellence in Teaching Award, School of Medicine LSUHSC

2009 Grass Faculty Award. Marine Biological Laboratory

2005-2006: NRSA Individual Postdoctoral F32 Fellowship LSUHSC

2003-2005: NRSA Individual Postdoctoral F32 Fellowship LSUHSC

1998: Best Student Paper; 16th International Congress on Acoustics and the 135th meeting of the Acoustical Society of America. Seattle, WA. USA

1995-2000: NIMH integrative training grant fellowship, Cornell University 

 

2013 2:44:39 PM
Usher Research Team: Dr. Hamilton Farris, Dr. Mette Flatt, Dr. William Gordon,
Dr. Jennifer Lentz (with mouse) and Dr. Nicolas Bazan

Local medical research team makes breakthrough in curing deafness Meg Farris, WWLTV.com, February, 4 2013.
link to page
 

Research Interests

Keywords:
communication, speech, attention, complex auditory stimuli

Using the methodologies of psychophysics, neurophysiology and evolutionary biology, our research explores the underlying neural mechanisms mediating sensory acuity (i.e., stimulus detection and discrimination). Our long-range goal is to understand how components of descending circuitry contribute to the ability to communicate in noisy environments.

Field work at the Smithsonian Tropical Research Institute

"Singing in the Rain" by Leslie Capo
Research Saves, Spring 2010

Post-Doc Postition Available

 

 

Teaching Activities

2014 9:05:08 AM

Dr. Hamilton Farris (center) with new Ph.D. graduates,
Eric Knott, (left) and Aram Asatryan (right) 

 

Course Coordinator:

Inter 132 (Neuroscience Block: Director)

Medical Neuroscience (Course Director)

Psychoacoustics (Course Director)

Lecturer :

Allied Health Neuroscience ; Investigative Neuroscience ; Molecular Neuroscience ; Synaptic Organization of the Brain

 

Selected Publications

Ponnath, A and Farris H.E. (2014). Sound-by-sound thalamic stimulation modulates midbrain auditory excitability and relative binaural sensitivity in frogs. Front. Neural Circuits8:85. doi: 10.3389/fncir.2014.00085 Link

Imaizumi, K., Shih, J.Y. and Farris, H.E. (2013) Global hyper-synchronous spontaneous activity in the developing optic tectum. Scientific Reports doi:10.1038/srep01552 (nature.com link)

Lentz, J., Jodelka, F, Hinrich, A., McCaffrey, K., Farris, H.E., Spalitta, M., Bazan, N., Duelli, D., Rigo, F., Hastings, M. (2013) Rescue of hearing and vestibular function by antisense oligonucleotides in a mouse model of human deafness. Nature Medicine  doi:10.1038/nm.3106 Link

Press and editorials for Lentz et al.:

2013%2011:19:52%20AM

Ponnath, A., Hoke, K. and Farris, H.E. (2013) Stimulus change detection in phasic auditory units in the frog midbrain: frequency and ear specific adaptation. Journal of Comparative Physiology A doi:10.1007/s00359-013-0794-x Link

Jones, P., Farris, H.E., Page, R., Ryan, M. (2013) Do frog-eating bats perceptually bind the complex components of frog calls? Journal of Comparative Physiology A doi: 10.1007/s00359-012-0791-5 Link

Akre, K.L., Farris, H.E., Lea, A.M., Page, R.A., and Ryan, M.J. (2011) Signal perception in frogs and bats and the evolution of mating signals. Science. 333 (6043):751-2. Link

Press and editorials for Akre et al.:
 2012%203:27:31%20PM2012%203:28:57%20PM2012%203:37:41%20PM

2012%205:00:24%20PM 2012%203:29:54%20PM 2012%203:30:39%20PM

Farris, H.E., and Ryan, M.J. (2011) Relative comparisons of call parameters enable auditory grouping in frogs. Nature Communications. Vol. 2: doi: 10.1038/ncomms1417. Link

Ponnath, A. and Farris, H.E. (2010) Calcium-dependent control of temporal processing in an auditory interneuron: a computational analysis. Journal of Comparative Physiology A. 196: 613–628. Link

Lentz, L. Gordon W.C. Farris, H.E.,  MacDonald, G. Robbins, C.A., Tempel, B.L., Bazan, N.G., Rubel, E., Oesterle, E., Keats, B. (2010) Deafness and retinal degeneration in a novel USH1C knock-in mouse model. Developmental Neurobiology, 70:253-67. Link

Farris, H.E., Oshinsky, M., Forrest, T., and Hoy, R.R. (2008) Auditory sensitivity of an acoustic parasitoid (Emblemasoma sp., Sarcophagidae, Diptera) and the calling behavior of potential hosts. Brain , Behavior and Evolution, 72:16-26. Link

Farris, H.E., Wells, G.B. and Ricci, A.J. (2006) Steady-state adaptation of mechanotransduction modulates the resting potential of auditory hair cells, providing an assay for endolymph [Ca2+]. Journal of Neuroscience. 26, 12526-12536. Link

Farris, H.E., Rand, A.S. and Ryan, M.J. (2005) The effects of time, space and spectrum on auditory grouping in túngara frogs. Journal of Comparative Physiology A. 191, 1173-1183. Link

Farris, H.E., and Ricci, A.J. (2005) Voltage-clamp errors cause anomalous interaction between independent ion channels.Neuroreport,16, 943-947. Link

Witte, K., Farris, H.E., Ryan, M. and Wilczynski, W. (2005) How cricket frog females deal with a noisy world: habitat-related differences in auditory tuning.Behavioral Ecology, 16, 571–579. Link

Farris, H.E., LeBlanc, C.L., Goswami, J. and Ricci, A.J. (2004) Probing the pore of the auditory hair cell mechanotransducer channel in turtle. Journal of Physiology, 558.3, 769-792. Link

Wyttenbach, R. and Farris, H.E. (2004) Insect psychoacoustics. Microscopy Research and Technique, 63, 375-387. Link

Farris, H.E., Mason, A.C. and Hoy, R.R. (2004) Identified auditory neurons in the cricket Gryllus rubens: temporal processing in calling song sensitive units. Hearing Research,193, 121-133. Link

Farris, H.E., Rand, A.S. and Ryan, M.J. (2002). The effects of spatially separated call components on phonotaxis in túngara frogs: Evidence for auditory grouping.Brain, Behavior and Evolution.60, 181-188. Link

Farris, H.E., and Hoy, R.R. (2002) Two-tone suppression in the cricket, Eunemobius carolinus (Gryllidae, Nemobiinae). Journal of the Acoustical Society of America,111, 1475-1485. Link

Farris, H.E.,and Hoy, R.R. (2000). Ultrasound sensitivity in the cricket, Eunemobius carolinus (Gryllidae, Nemobiinae). Journal of the Acoustical Society of America, 107, 1727-1736. Link

Farris, H.E., Forrest, T.G. and Hoy, R.R. (1998). The effect of ultrasound on the attractiveness of acoustic mating signals. Physiological Entomology, 23, 322-328. Link

Farris, H.E., Forrest, T.G. and Hoy, R.R. (1997). The effects of calling song spacing and intensity on the attraction of flying crickets (Orthoptera: Gryllidae: Nemobiinae). Journal of Insect Behavior, 10, 639-653. Link

Forrest, T.G., Read, M.P., Farris H.E., and Hoy R.R. (1997). A tympanal hearing organ in scarab beetles. Journal of Experimental Biology, 200, 601-606. Link

Forrest, T.G., Farris, H.E. and Hoy, R.R. (1995). Ultrasound acoustic startle response in scarab beetles. Journal of Experimental Biology,198, 2593-2598. Link

 

Additional Info

Dr. Farris' Curriculum Vitae

Lab Web Page (under construction) 

Present Funding:
2007-2017 Investigator, CoBRE
(Center of Biomedical Research Excellence) NIH

Title: Mentoring Neuroscience in LA: A biomedical Program to Enhance Neuroscience Grant # P20RR016816 (N. Bazan, PI)