Applications are invited for two PhD positions in the Psychology department at the University of Giessen, Germany. The fist position is available immediately with a flexible starting date. This position is funded by the project grant “Modulation of value-based decision making by novelty”. The project will investigate the influence of contextual novelty on learning and decision-making using fMRI. The second position will be available starting September. This position is not associated with a specific project, giving room to the candidate's ideas in designing experiments on motivation and decision making. The department offers an on-site research-dedicated 3T MRI scanner. The successful candidate(s) will collect and analyze fMRI data using computational models of decision-making, present the results at scientific conferences and write scientific papers. We are looking for highly motivated candidates with a Master’s degree (or equivalent) in neuroscience, psychology, biology or a related field and with a strong interest in cognitive neuroscience and the ability to work independently. We expect programming skills and proficiency in English; prior experience in computational neuroscience and experience with fMRI are of advantage. Please send your CV, transcripts or degree certificates, a brief statement of research interests and contact details of two referees by e-mail to bianca.wittmann(a)psychol.uni-giessen.de. Applications will be considered until the position is filled.