Dwaipayan (known as Deep) is studying sex steroid physiology in the autistic brain using both post-mortem brain methods and induced pluripotent stem cells (iPSC).

In the latter he is modelling neuronal development and gene expression in the autistic brain. The focus of his research is to study transcriptional and epigenetic regulation of genes in autism, specifically to search for mechanisms by which hormones (particularly sex steroids) and related transcriptional/epigenetic factors, contribute to the autism phenotype.