Auditory Processing Disorder (APD) affects 0.5-7% of the pediatric population. This disorder is responsible for a child's low hearing ability. The diagnosis of APD is difficult because of polymorphic symptoms possibly entangled with other difficulties (learning, communication, attention ...). There is currently no gold standard in the literature for diagnosing APD. Investigators opened multidisciplinary consultation for the children suspected of APD. The purpose of this study is to analyze the results of the multidisciplinary assessment performed on these children (audiometry, cortical auditory brainstem response (ABR), behavioral assessment, psychometric evaluation, genetic analysis) to the results of functional MRI (fMRI) at rest and in activation. The goal is to find radiological MRI-fMRI markers in these patients that improve the diagnosis of APD. Investigators will compare the f-MRI results between three groups of children in order to find specific radiological markers of APD : * group 1 : children diagnosed with an Auditory Processing Disorder (APD) * group 2 : children suspect of APD * group 3 : children without APD (controls)