Transcranial direct current stimulation: a remediation tool for the treatment of childhood congenital dyslexia?

Developmental dyslexia (DD) is a neuropsychological condition that is characterized by the persistent difficulty in learning to read amongst people with typical education, motivation, and normal intelligence (Goswami, 2006). On the other hand, a recent study (Callens et al., 2012) has pinpointed that when taking the full cognitive profile of students with DD into account, a quite consistent deficiency on a wide range of tasks, predominantly those involving the speed of processing and retrieval of verbal information from long-term memory, can be identified. Improved reading by training programs in childhood congenital dyslexia (CDD) leads rarely to full restitution, even in children submitted to intensive interventions. A major progress in the treatment of this disorder could originate from the development of complementary approaches that may enhance existing remediation programs by providing rehabilitation benefits that are larger and stable over time.