In 1988, Cheryl Grady, Barry Horwitz, and I approached Leslie Ungerleider with a proposal. It had recently become possible to measure regional cerebral blood flow in humans using PET for study of higher-level perceptual and cognitive processes. We wanted to map the ventral object vision and dorsal spatial vision pathways in the human brain, and, being at National Institutes of Health, we could recruit the pioneers who defined this organizational structure in the primate brain (Mishkin, Ungerleider, & Macko, 1983; Ungerleider & Mishkin, 1982). Leslie agreed and involved Mort Mishkin in the project. The result was a series of articles (Grady et al., 1992, 1994; Haxby et al., 1991, 1994; McIntosh et al., 1994; Ungerleider & Haxby, 1994; Horwitz et al., 1992) and, more importantly, a sea change in the NIMH Intramural Research Program for cognitive neuroscience.
Cheryl, Barry, and I...