Brainmapping and Braintaping both refer to technology developed, originally, to study and treat mental disorders. Both terms are now a common reference to many types of brain scanning technology. Braintaping is a specialized method by which an extremely detailed (albeit imperfect) model of the brain is created, specifically the connectome - the actual layout of pathways that exist between neurons that form the "map" of the brain. These models are essential to AI development as well as the deployment of all androids.
Once a brainmap has been recorded, neural channeling technology allows some or all of the map to be played-back onto a brain (organic or otherwise) to reproduce the connectome. However, the receiving brain must be pristine (a "blank slate") in order for the procedure to complete successfully, though research into solving this problem is underway.