jnd: just noticeable difference

In the field of psychophysics, that branch of experimental psychology that studies sensation and perception, a jnd is the amount that something must be changed for the difference to be noticeable, defined to mean that the change is detectable half the time. My goal is to make a noticeable difference -- many jnds worth -- in human-centered technology.

I started my career as an experimental/mathematical psychologist in psychophysics, and my love of the exquisite sensitivity and dynamic range of hearing and seeing, as well as the power of human perception has stayed with me.

For the definition of jnd as used in psychophysics, see the Wikipedia definition.

Updated December 22, 2018
I am declining travel requests not directly related to the University of California, San Diego Design Lab. (Not all trips are listed.)

March 30, 2019: Keynote: 21st Century Design
   Krupa (Interface Conference). Kyiv (Ukraine)

April 2019 (Date not yet determined).AAAS Workshop at UC San Diego

 American Association for Arts and Sciences workshop, sponsored by the Design Lab: Design in the 21st Century

May 10, 2019. Tsinghua University, Beijing
   Advisory Board Meeting

May 13-14: Tongji University's College of Design & Innovation, Shanghai
 Advisory Board Meeting

May 14-16, 2019. Princeton University
   Smart Driving Car Summit. (Organized by Prof. Alain Kornhauser, Princeton University, Princeton, NJ)

May 31, 2019. AAAS symposium at U.C. San Diego
21st Century Design at UC San Diego.

June 23-26. ACM Conferences Creativity & Cognition (C&C) and Designing Interactive Systems (DIS)
 A joint conference of the two organizations, co-sponsored by the  UC San Diego Design Lab'. (Steven Dow, Design Lab faculty is Co-Chair and Co-Associate Chair of the two conferences, respectively.)
 http://cc.acm.org/2019/ and https://dis2019.com/

October 8-11. 17th annual FiRe (Future in Review) Conference.
 The Lodge at Torrey Pines, La Jolla, CA