The capacity of visualising in vivo the cerebral structures that are involved in man during the performance of cognitive tasks are modifying human cognitive sciences in depth. For decades, study of human cognition was relying on the lesions method that investigates anatomical lesions and the corresponding neuropsychological symptoms. The development of functional imaging techniques, milestoned by increasing progress in space-time resolution, has led to the birth of a new field: cognitive neuroscience with imaging as the main tool. This field brings a new vision regarding relations between brain and mind as defined in psychology or in neuropsychology. Functional neuroimaging is a multidisciplinary research field, where signal and image processing is necessary to rebuild and interpret data that are collected by instruments. Availability of reliable and robust analysis methods and of tools of easy use is a considerable asset for all cerebral imaging users, allowing them to interpret and present their results.