My motivating interest is in human intelligence, and especially in understanding how neural and molecular-genetic processes are this intelligence. Analogical thinking has been the focus of much of my work to date because it represents a valuable and relatively well-constrained form of intelligent thought. My research is directed along three active lines. 1) Using fMRI to characterize cognitive flexibility in analogical reasoning. In particular, I am currently examining whether activity in left frontopolar cortex (BA 9/10) is a marker for more flexible analogical connections (Green, Kraemer, Fugelsang, Gray, & Dunbar, 2009). This hypothesis is indicated by my prior research concerning frontopolar cortex function (Green, Fugelsang, Kraemer, Shamosh, & Dunbar, 2006; Shamosh, DeYoung, Green, Reis, Johnson, Conway, Engle, Braver & Gray, 2008). 2) Testing and establishing boundary conditions for the “Micro-Category” account of analogical reasoning (Green, Fugelsang, & Dunbar, 2006; Green, Fugelsang, Kraemer, & Dunbar, 2008), which explains analogical reasoning as a product of categorical relations. 3) Identifying convergence among cognitive, neural, and genetic markers of the components of human reasoning. In 2006, I trained at the Sackler Institute at Columbia-Cornell Medical Center to acquire genotyping techniques that I am using in combination with cognitive assays and functional brain-imaging (e.g., Green, Munafo, DeYoung, Fossella, Fan & Gray, 2008, Fossella, Green, & Fan, 2006; Fan, Fossella, & Green, submitted). My ongoing and future research seeks to delineate the interactive contributions of multiple genomic variations – especially those implicated in white matter connectivity – to behavioral phenotypes and neural endophenotypes related to human reasoning. This line of research contributes to the emerging field of cognitive neurogenetics.