Imaging techniques, either mono-purposive techniques or multi-purposive ones, are widely used in the radiological labs of many public and private medical institutions. Some of them have special characteristics that distinguish them from other techniques. However, many specialists, namely radiologists use them only as part and/ or full-time motifs rather than as diagnostic tools and professional means in and of themselves. The aim of this book in its two parts, conducted in light of neurolinguistics and cognitive neurosciences, is to show that using these techniques be it in the medical sciences in general or in neurolinguistic and cognitive neurosciences in particular is inevitable if we are looking for accurate results; therefore, better assessment.