Scientists at the University of Rochester have discovered that the hormone estrogen plays a pivotal role in how the brain processes sounds, in the way in which it extracts and interprets auditory information. There needs to be a “right balance” of this hormone for the brain to not only process the sounds but also to lay down memories of the sounds. (Estrogen Controls How the Brain Processes Sound. Psysorg.com, 2009.)

Refer to Substances and the Brain for additional information.