Mar 20, 2017

Brodmann areas

0 comments

Areas of the cerebral cortex mapped on the basis of cytoarchitectural patterns. See: cerebral cortex.

 

The German physician Korbinian Brodmann (1868–1918) was diverted from plans to enter general practice by a long convalescence during which he worked at a sanatorium for nervous diseases. After advanced studies in neurology, neuroanatomy, pathology, and psychiatry, he began an investigation of the comparative anatomy of the mammalian cortex at the Neurobiological Laboratory of the University of Berlin. Earlier workers had divided the cortex into six principal layers on the basis of their proportions of pyramidal, stellate, and fusiform cells. Using the newly developed staining technique of Nissl, Brodmann distinguished about 50 zones of the cortex on the basis of subtle differences in cell type, size, density, and lamination, and correlated his anatomic findings with studies on localization of function in humans, subhuman primates, and other mammals. His cortical map and numbering system, published in 1909, became standard methods for distinguishing areas of cortex, and are still widely used by clinical neurologists and neurosurgeons. Although later workers have published revisions of his work, subdivided his areas, and substituted letters for his numbers, modern experimental methods have largely vindicated his cortical localizations, both anatomic and functional. SEE ALSO figure at cerebral cortex.

 

Reference: Stedman's Medical Dictionary

New Posts
  • Scientists are now finding that light acts on individuals through multiple pathways, most notably the optic nerve that links to the brain's visual cortex, providing a pathway for the visual effects of light. The optic nerve also links to the more recently discovered retinohypothalamic tract, providing a pathway for the nonvisual effects of light. However, specific effects have not yet been widely evaluated clinically, especially in relationship to chromotherapy (ie, therapy based on colored light). Question: Do you think that color can affect your nervous system ? If Yes, give us on comment your favorite color and your emotional type when you see the color. Different emotional types ( Robert Plutchik's theory ) : Fear → feeling of being afraid, frightened, scared. Anger → feeling angry. A stronger word for anger is rage Sadness → feeling sad. Other words are sorrow, grief (a stronger feeling, for example when someone has died) Joy → feeling happy. Other words are happiness, gladness Disgust → feeling something is wrong or nasty. Strong disapproval. Surprise → being unprepared for something. Trust → a positive emotion; admiration is stronger; acceptance is weaker. Anticipation → in the sense of looking forward positively to something which is going to happen. Expectation is more neutral Share if you found interesting.
  • Select the one best response. A 30 year old male complains of unilateral headaches with rhinorrhea and tearing of the eye on the side of the headache. Episodes are precipitated by alcohol. Headaches may become a problem for weeks to months, after which a headache-free period occurs. The most likely diagnosis is: a. Migraine b. Cluster headache c. Sinusitis d. Tension headache

Most Commented Posts

Create ✍️ - Like ❤️ - Comment 💬 - Share 🔗

Shares.png
  • Share Now Social Media
  • Facebook
  • Twitter
  • LinkedIn
  • Tumblr
  • YouTube
  • Google Search
  • WhatsApp Share button Facebook