Professor Lasonen-Aarnio joined the department in Fall 2010. Before coming to Michigan she received a DPhil from Oxford in 2009, and worked in Merton College as a research fellow. Her research lies primarily in epistemology, though her interests range from metaphysics to environmental ethics. She has published papers on closure principles for knowledge, the notion of well-founded belief, defeat of knowledge and justification, knowledge and objective chance, and the incompatibility of the theses of semantic externalism and privileged access. A lot of her work defends an externalist approach in epistemology. She has recently written on peer disagreement and the related issue of how higher-order evidence producing rational self-doubts about one's own cognitive processes ought to be taken into account.
"Higher-Order Evidence and the Limits of Defeat", forthcoming in Philosophy and Phenomenological Research.
"Disagreement and Evidential Attenuation", forthcoming in Noûs.
“Unreasonable knowledge.” Philosophical Perspectives 24.1 (2010) : 1-21.
“Is there a viable account of well-founded belief?” Erkenntnis 72.2 (2010) : 205-321.
“Knowledge and Objective Chance”, with John Hawthorne, in Williamson On Knowledge, P. Greenough & D. Pritchard (eds.), Oxford University Press, 2009.
“Single premise deduction and risk.” Philosophical Studies 141.2 (2008) : 157-173.
“Why the externalist is better off without free logic: a reply to McKinsey.” Dialectica 62.4 (2008) : 535-540.
“Externalism and A Priori Knowledge of the World: Why Privileged Access is Not the Issue.”Dialectica 60.4 (2006) : 433-445.