After a postdoc in Harvard in cognitive neuropsychology, Schiller returned to Europe. He also did clinical work in America, with aphasia patients. ‘I learned an enormous amount there, but I found the scientific climate too hard. I like to work hard, but what I experienced there, I realise it's not for me.' Schiller started in Maastricht as a KNAW researcher. For the psycholinguistic area of his research he travelled a number of times each week to the Max Planck Institute.