ABSTRACT
Apostolos P. Georgopoulos Brain Sciences Center, Veterans Affairs Medical Center, Minneapolis, USA
Department of Neuroscience, University of Minnesota Medical School,
Minneapolis, USA
Department of Neurology, University of Minnesota Medical School,
Minneapolis, USA
Department of Psychiatry, University of Minnesota Medical School,
Minneapolis, USA
Center for Cognitive Sciences, University of Minnesota, Minneapolis, USA
I love IJ because it’s a good-looking letter of the Greek alphabet. I also love IJ because it was invented by my good friend Dave N. Lee, long before we met. In
fact, it was very nice of him to immortalize this measure, presciently, using
Greek in 1976 (Lee, 1976), some 12-odd years before our acquaintance was
made in 1984 in Bielefeld, Germany. At that time, we spent the whole night
musing over IJ with Claes Von Hofsten and Dave over a bottle of decent single malt. That night also clinched a lifelong friendship with Dave and Claes, and an
ongoing collaboration with Dave for the past 15 years.