Brodmann Area 51 – The Prepiriform Area


Dr Korbinian Brodmann, German Neurologist, Frontpiece of ‘Localisation in the Cerebral Cortex’, 1909, Public Domain*

In the nineteenth century the eminent German Neurologist Dr Korbinian Brodmann developed a brain map based on the brain’s microscopic properties. This map has been very successful and is used even today. Many of the Brodmann areas have been covered in detail elsewhere on this site (see Appendix). This post continues the series looking at selective Brodmann areas in this instance focusing on Brodmann Area 51. Brodmann does not describe this area in humans. Instead, in his classic 1909 text ‘Localisation in the Cerebral Cortex’ he provides a comparison of neuroanatomy in several distinct species. Brodmann Area 51 is described in the Kinkajou. The Kinkajou which can be seen in this video is an arboreal mammal living in Central and South America. Brodmann Area 51 is referred to by Brodmann as the Prepiriform area within the Olfactory region. Brodmann also describes this area in the Rabbit and Ground Squirrel. Brodmann also describes Brodmann Area 51 in the Hedgehog noting that it is expanded and he further subdivides this into 51a, 51b, 51c and 51d. This perhaps reflects the different significance of the Olfactory apparatus across species.


Neuroanatomy Resources

*Public Domain in those countries where the Copyright term of the life of the author (Korbinian Brodmann 1868-1918) plus the additional country specific term has lapsed from Copyright at the time of writing

An index of the site can be found here. The page contains links to all of the articles in the blog in chronological order. Twitter: You can follow ‘The Amazing World of Psychiatry’ Twitter by clicking on this link. Podcast: You can listen to this post on Odiogo by clicking on this link (there may be a small delay between publishing of the blog article and the availability of the podcast). It is available for a limited period. TAWOP Channel: You can follow the TAWOP Channel on YouTube by clicking on this link. Responses: If you have any comments, you can leave them below or alternatively e-mail Disclaimer: The comments made here represent the opinions of the author and do not represent the profession or any body/organisation. The comments made here are not meant as a source of medical advice and those seeking medical advice are advised to consult with their own doctor. The author is not responsible for the contents of any external sites that are linked to in this blog.

One comment

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s