Christopher Bergevin
Columbia University
Otolaryngology/Head & Neck Surgery
Fowler Memorial Lab
Of recent note......
- Joint Talk (w/ Dr. Wei Dong)
→ Biomedical Engineering seminar series at Columbia University (1/27/12). Flyer/abstract can be downloaded here.
- Sense to Synapse: Biophysical Mechanisms of Perception
A one-day conference (April, 2012) designed to bring together those in the greater NYC area interested in the biophysics underlying the sensory systems
→ Meeting webpage. Click here for the flyer (final details still to be determined).
- ARO 2012
- Acoustics of the ear canal and middle ear cavity probed with high spatial resolution
Bergevin C & Olson E (abstact)
- Relationships between cochlear tuning and delay probed with a nonlinear transmission-line model
Epp B, Bergevin C & Shera CA (abstact)
- Desktop pics ...for the sole purpose of decorating the background of something that you likely look at a lot.... [New Desktops added 12.10.11!]
Education
Research Interests
General
- Mechanics and Models of the Auditory Periphery (both mammalian and non-mammalian ears)
- Mathematical Models in Biology and Sensory Physiology
- Improving Undergraduate Education in the Life Sciences
Specific Areas of Focus
Publications
Peer-Reviewed Publications
- The following appear in What Fire is in Mine Ears: Progress in Auditory Biomechanics (American Institute of Physics) (2011; link)
- Coupled, Active Oscillators and Lizard Otoacoustic Emissions
Bergevin C, Velenovsky D, Bonine KE (pdf)
- Stiffness vs Damping in the Cochlea: A Negative Conclusion?
Binder A, Aranyosi AJ, Bergevin C (pdf)
- Otoacoustic estimates of cochlear tuning: Testing predictions in macaque
Shera CA, Bergevin C, Kalluri R, Mc Laughlin M, Michelet P, van der Heijden M, Joris PX (pdf)
- MoH101: Basic concepts in the mechanics of hearing
Bergevin C, Epp B, Meenderink SWF (pdf)
- Interrelationships between spontaneous and low-level stimulus-frequency otoacoustic emissions in humans (2011)
Bergevin C, Fulcher A, Richmond S, Velenovsky D, & Lee J
[submitted; under review]
- Frequency selectivity in Old World monkeys corroborates sharp cochlear tuning in humans (2011)
Joris PX, Bergevin C, Kalluri R, Mc Laughlin M, Michelet P, van der Heijden M, Shera CA
Proc. Nat. Acad. Sci. (PNAS), 108(42):17516-17520 (pdf)
- Comparison of Otoacoustic Emissions Within Gecko Sub-Families: Morphological Implications for Auditory Function in Lizards (2011)
Bergevin C
J. of the Assoc. for Research in Otolaryngology (JARO), 12:203-217 (pdf)
- Tectorial Membrane Morphological Variation: Effects Upon Stimulus Frequency Otoacoustic Emissions (2010)
Bergevin C, Velenovsky D, Bonine KE
Biophysical J., 99(4):1064-1072 (pdf)
- Coherent reflection without traveling waves: On the origin of long-latency otoacoustic emissions in lizards (2010)
Bergevin C, Shera C
J. of the Acoustical Society of America (JASA), 127(4):2398-2409 (pdf)
- Towards Improving the Integration of Undergraduate Biology and Mathematics Education (2010)
Bergevin C
J. of Microbiology and Biology Education (JMBE), 11(1):28-33 (pdf)
- The Auditroy Midbrain of People with Tinnitus: Abnormal Sound-Evoked Activity Revisted (2009)
Melcher JR, Levine RA, Bergevin C, Norris B
Hearing Research, 257:63-74
- Modeling Stimulus-Frequency Otoacoustic Emissions in the Gecko. (2009)
Bergevin C, Shera CA
Concepts and Challenges in the Biophysics of Hearing (World Scientific, Singapore), pg. 85-90 (pdf)
- Otoacoustic emissions in humans, birds, lizards, and frogs: evidence for multiple generation mechanisms (2008)
Bergevin C, Freeman DM, Saunders JC, Shera CA
J. of Comparative Physiology A, 194(7):665-683 (pdf)
Conference Proceeding and Posters
- Otoacoustic Emission Delays As a Probe To Measure Cochlear Tuning: Comparative Validations (ASA 2011, talk )
⇒ Webpage to the special session can be found here
- Using otoacoustic emissions to explore cochlear tuning and tonotopy in the tiger (ARO 2011, poster , pdf, abstact)
- Stimulus-Frequency Otoacoustic Emissions As a Probe of Cochlear Tuning in the Common Marmoset (ARO 2011, poster , pdf, abstract)
- Otoacoustic Emission Methodology: A Non-Invasive Probe to Inner Ear Function (ARO 2011, talk , pdf, abstract)
- Auditory Brainstem Responses and Otoacoustic Emissions in Lizards: Comparisons Across Species and Temperatures (ARO 2011, poster, abstract)
- Integrating Mathematics Into Life Science Education (ASMCUE 2010, talk , pdf)
- Otoacoustic Emission Temperature Dependence Across the Lacertilia (ARO 2010, poster , pdf, references)
- Exploring the Interrelationship between Spontaneous and Low-Level Stimulus-Frequency Otoacoustic Emissions (ARO 2010, poster , pdf)
- Long Delays Without Basilar-Membrane Traveling Waves: Correlations Between Tuning Bandwidth and Emission Delay in a Model of the Gecko Inner Ear (ARO 2009, poster , pdf)
- Develops a model for lizard SFOAE generation and associated phase-gradient delays (Mechanic of Hearing 2008, poster, pdf; manuscript, pdf)
- Correlation between SFOAE phase-gradient delays and tuning in auditory nerve fibers for old-world monkeys (ARO 2008, poster, pdf)
- Exploring connections between phase-gradient delays, traveling waves and tuning (OSU Mathematical Biosciences Institute 2007, slides, pdf)
- Systematic comparison of various properties of OAEs across a wide range of species (ARO 2007, poster, pdf)
- Examines OAE level-dependence in humans and geckos and discusses various models (ARO 2006, poster, pdf)
- Comparison of evoked OAEs between humans and geckos (Mechanics of Hearing 2005, poster, pdf; manuscript, pdf)
[NOTE: ARO = Association for Research in Otolaryngology
ASA = Acoustical Society of America]
Jumps/Downloads (cool links, old talks, data, pictures, etc...)
- Geocaching - Go outside and get yourself some fun
- Desktop pictures for the sole purpose of decorating something that you likely look at a lot....
- UBRP 22nd Annual Conference (January 22, 2011 Tucson, AZ)
Click here for a higher-res image of the poster (picture taken at Central Park Zoo, Jan. 2010)
- ASM CUE 2010 (downloads are in pdf format): recent JMBE article , mathematics attitude questionnaire, draft of presentation slides
- Simple code that allows you to listen to a spontaneous otoacoustic emission. Via Matlab, you can filter the signal (either high-pass or band-pass) and play it back out. Note that your ear can pick up quite readily what the statistics does for you (i.e. for filtered noise, the amplitude modulation is quite noticeable while for an SOAE, you can hear the stable amplitude). The zipped file should contain everything you need (including an SOAE time waveform from a human female ear containing several nice peaks). [posted July. 2009]
- Spontaneous otoacoustic emission data taken from an adult Tokay gecko on 7/19/07. The file is a large time waveform (60 s long at a sample rate of 22050 Hz). For convenience, this file shows how to plot the resulting (averaged) spectrum in order to visualize the SOAE peaks, but many other insightful forms of analysis could be done..... [posted Feb. 2009]
- Data on various aspects of cochlear morphology across a wide range of species compiled from various sources. Insightful to plot and do various statistical analyses on. Two files are included (and intended for use in Matlab): this file will create a structure in Matlab containing the data, while this file provides an example of how to extract and plot the data from said structure [posted Feb. 2009]
- Math Instruction Colloquium [~0.9 MB pdf, Jan. 2009] Talk given to the mathematics education group at the University of Arizona. Talk highlights some of the challenges associated with integrating mathematics and biology pedagogy.
- Mathematical Physics Seminar [~3 MB pdf, Sept. 2008] - Slides from a talk outlining proportionality between phase-gradient delay and tuning bandwidth for the harmonic oscillator. Also fleshes out SFOAE model for the lizard ear, extending the result derived for the HO
- Scientific Writing [~3.4 MB pdf, 2008] - Talk given to UofA summer undergraduate biology students (UBRP) on various aspects of technical writing.
- Lizard OAEs [~4.1 MB pdf, 2008] - Talk given at the UofA math depatment modeling seminar about a model describing the phase-gradients delays in lizard otoacoustic emissions.
- Appendix chapter from PhD thesis outlining a relatively simple (i.e. 1-D, passive and linear) model of the mammalian cochlea [~0.3 MB pdf, 2007].
- Slides from a talk given based upon the aforementioned Appendix chapter [~1.4 MB pdf, 2007].
- Synchronization of chaotic systems [~0.6 MB pdf, 1999] - Undergraduate paper written on how to get two chaotic electronic circuits to synchronize with one another (also see here for brief overview)
- Thermometry [~0.3 MB pdf, 1999] - Undergraduate (REU) paper written on a thermometry system operating down towards absolute zero with sub-millikelvin resolution
Teaching
Previous Courses Taught (University of Arizona, 2007-2010)
- BioMath - developing new approaches to math/biology education. Also see this link for information about the new Integrated Science program at the UofA.
- Math 250B - Calculus and Differential Equations II (Spring 2010)
- Math 250A - Calculus and Differential Equations I (Fall 2009)
- Physiology 472 - Quantitative Modeling of Biological Systems (Fall 2009) (w/ Prof. Tim Secomb )
- Math 363 - Introduction to Statistical Methods: Calculus-based Statistics for Life Sciences (Spring 2009 w/ Prof. Joe Watkins )
- Math 250 B - Calculus and Differential Equations II for Biology Majors (Spring 2009 w/ Prof. Joceline Lega )
- Math 250 A - Calculus and Differential Equations I for Biology Majors (Fall 2008 w/ Prof. Joceline Lega)
- Physiology 472 - Quantitative Modeling of Biological Systems (Fall 2008 w/ Prof. Tim Secomb)
- Math 596a - Quantitative Biology Colloquium (Fall 2008 w/ Prof. Joe Watkins; see here for general link)
- Math 129 - Calculus II (Spring 2008)
- Math 250A and 250B - Calculus and Differential Equations I & II for Biology Majors (Fall 2007 & Spring 2008 w/ Prof. Jim Cushing )
Contact Info:
- E-mail:
- Phone:
(212) 305-3993 (lab)
- Office:
Fowler Memorial Lab
CUMC P&S 11-452
- U.S. Postal Mail:
Dr. Christopher Bergevin
Columbia University
630 West 168th Street
P&S 11-452
New York, NY 10032
Dynamic range of hearing dimensional analogy [courtesy of D. Freeman]