Right Brain is corresponding to Left Hand and Left Brain is corresponding to Right Hand.
During the earlier days, when American doctors discovered a strange case where the baby is born without a brain. In this case, the absence of brain is associated with the absence of fingerprints as well. Cases like this repeated throughout history, leading medical experts to believe that the brain is absolutely linked to the fingerprints. Neurobiologists point out that our fingerprints development are synchronised with that of the neocortex. For example, children with Down Syndrome have a fingerprints with distinguishable characteristics.
Canadian neurology professor Penfield published the chart between brain regions and bodily functions. In the chart, the relationship between fingerprints and the brain is also pointed out.
Japanese medical expert professor pointed out that the fingers are closely related to the brain hemisphere. Therefore, this has been widely used in many fields.