Disclosed is a system (100, 200) for giving feedback based on motion before or during medical imaging, comprising:- an optical camera device (110, 210) that is configured to generate image data of at least two images of a subject (408) or of a part of a subject (408) which can be arranged or is arranged at a subject placing location (194) of a medical imaging device (192), and- a feedback signaling unit (120, 124) that is configured to generate based on movement data obtainable from the image data a feedback signal (Si1, Si2) that is perceptible by the subject (408) and/ or by an operator of a medical imaging device or by MRI technician (192).
