Charles David Johnson, PhD

I grew up in Ottawa, Illinois, received my B.S. Engineering Physics from University of Illinois in 1979, my M.S. Applied Mathematics from Santa Clara University in 1983, and my Ph.D. in Cognitive and Neural Systems from Boston University in 1998. Since then I have lived in Austin, Texas. I'm currently an adjunct professor of mathematics at Austin Community College. In my free time, I study physics and math, and I also write fiction.

Blogs and other sites:

http://www.atheistjourney.com Blog about my spiritual journey
http://www.teachyourselfmath.com Recordings of lectures in current math courses I teach
http://www.facebook.com/cdavejohnson Photographs and periodic updates on my status.

Research Interests:

Speech production, Speech perception, Speech synthesis, Self-organization in complex systems, Biologically-plausible models of animal behavior, Motor control, Visual perception, Image processing, Image compression.

Published and Unpublished Writings

Journal Papers
- Frank H. Guenther, Michelle Hampson, and Dave Johnson (1998), A theoretical investigation of reference frames for the planning of speech movements. Psychological Review. 105(4), 611-633. (PDF, 322KB)
Conferences
- Dave Johnson (1997). A wavelet-based auditory planning space for production of vowel sounds. Proceedings of the Conference on Vision, Recognition, Action: Neural Models of Mind and Machine. May 29-31, 1997. Boston, MA: Boston University. 106, (HTML abstract) .
- Frank H. Guenther and Dave Johnson (1995), A computational model using formant space planning of articulator movements for vowel production. Journal of the Acoustical Society of America, 97(5), 3402. (HTML abstract)
- Dave Johnson and Frank H. Guenther (1995), Acoustic space movement planning in a neural model of motor equivalent vowel production. Proceedings of the World Congress on Neural Networks, Washington, D.C., Vol 1, 481-484, Mahwah, NJ: Lawrence Erlbaum Associates, Inc., Publishers. (PDF, 20KB)
Dissertation
- Charles David Johnson (1998), Investigations of Formant and Wavelet Representations for Speech Movement Planning, Boston University, Department of Cognitive and Neural Systems, Unpublished dissertation. (HTML abstract) , (PDF, 982KB)
Published Technical Reports
- Frank H. Guenther, Michelle Hampson, and Dave Johnson (1997), A theoretical investigation of reference frames for the planning of speech movements. (Technical Report CAS/CNS-TR-97-002). Boston: Boston University, Center for Adaptive Systems.
Unpublished Reports
- Dave Johnson (1995), Early Language Acquisition in Humans: A Review of the Babbling Literature, Boston University, Department of Cognitive and Neural Systems, (HTML), (PDF, 179KB) .
- Dave Johnson (1995), Production of Realistic Vowel Sounds Using a Neural Network Model of Speech Production and Acquisition, Boston University, Department of Cognitive and Neural Systems, (PDF, 276KB) .
- Dave Johnson (1994), Depth and Subjective Transparency: A survey of the literature, Boston University, Department of Cognitive and Neural Systems, (HTML) .

Miscellaneous Interests:

Physics, Applied mathematics, Philosophy of science, Nonlinear dynamical systems, Origins of consciousness, Software engineering, Computer architecture, Real-time operating systems, Top 40 music from the 70s and 80s, Rollerskating (not rollerblading), Writing fiction, Golf

Contact Information:

E-mail: cdavejohnson@gmail.com

My Professional Life:

Resume.
My concept dictionary on C/Unix internationalization.

My Personal Life:

Some nicknames I have had over the years.
Some quotes I have collected over the years.
Why I don't drink alcohol.

DISCLAIMER: The views expressed and referred to in this web page are mine and do not represent the official policy of my employers or my web host.