YouTubing Brodmann Area 2

The brain is a complex structure and but can be organised according to several principles. One approach is to characterise the brain regions according to the microscopic properties of these regions.  More specifically the neurons are organised differently between regions. Some regions may contain unique types of neurons. This approach to understanding the organisation of the brain was proposed by the German Neuropathologist Korbinian Brodmann and resulted in the eponymously named Brodmann Areas.

There are 52 areas in all and I have covered other Brodmann Areas elsewhere (see Appendix). Brodmann Area 2 was covered in more detail in this post. In his work ‘Localisation in the Cerebral Cortex’, Brodmann assigned the Brodmann Area 2 (BA2) to the Postcentral Region. BA2 is located in the postcentral region according to Brodmann’s labelling. Like the other areas in this region BA2 is characterised by a lack of Pyramidal cells but the presence of an inner granular layer. However Brodmann’s classification is a cytoarchitectural one and he makes no claim to the functions of these different areas.

Although there are hardly any videos which focus solely on BA2 there are videos that focus on the Somatosensory Cortex. This video by the Smith Lab illustrates the cytoarchitectural features of the Somatosensory Cortex.

L Todd Rose discusses the localisation of sensory functions in the brain in this video.

This video by Harper Martin has been covered elsewhere but is an excellent overview of the localisation of the Brodmann Areas on the lateral cortical surface.

In this video an international team discuss their research in which they stimulate the cortex with Transcranial Magnetic Stimulation as well as stimulating the face and arm with electrodes.  Subjects are asked to gauge the level of the stimulus in external space and the researchers discuss the implications of the results in terms of function.

In brief there are limited results for such a specialised topical the videos discussed above are informative.

Appendix

Neuroanatomy

An index of the TAWOP site can be found here and 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 justinmarley17@yahoo.co.uk. 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.

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