Research in the emerging field of neuropsychoanalysis, founded by neuroscientist and psychoanalyst Mark Solms, has proved controversial with some psychoanalysts criticising the very concept itself. Solms and his colleagues have argued for neuro-scientific findings being "broadly consistent" with Freudian theories pointing out brain structures relating to Freudian concepts such as libido, drives, the unconscious, and repression. Neuroscientists who have endorsed Freud's work include David Eagleman who believes that Freud "transformed psychiatry" by providing " the first exploration of the way in which hidden states of the brain participate in driving thought and behavior" and Nobel laureate Eric Kandel who argues that "psychoanalysis still represents the most coherent and intellectually satisfying view of the mind."