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[Emotion and Brodmann's areas: special reference on area 12]
1Department of Neurology, Showa University School of Medicine.
Rinsho Shinkeigaku = Clinical Neurology
|September 17, 2011
Summary
Brodmann
Area of Science:
- Neuroscience and Neuroanatomy
- Comparative Neuroanatomy
- Brain Mapping
Context:
- Brodmann's brain maps from 1909 are foundational but have uncertainties in animal-human homology.
- Human Area 12 (BA12), crucial for emotional function and frontotemporal lobar degeneration (FTLD), was not identified in Brodmann's 1909 work.
- Current research relies on Brodmann's areas as functional loci, necessitating accurate identification.
Purpose:
- To clarify the historical identification of human Area 12 (BA12) in Brodmann's brain maps.
- To address the discrepancy between Brodmann's 1909 map and later publications regarding BA12.
- To ensure accurate cyto-architectural mapping for current neuroscience research.
Summary:
- Brodmann identified human Area 12 (BA12) in his 1910 and 1914 maps, not in his 1909 monograph.
- This finding resolves an historical puzzle regarding BA12's identification.
- The accurate mapping of BA12 is crucial due to its association with frontotemporal lobar degeneration (FTLD) and emotional processing.
Impact:
- Corrects the historical record of Brodmann's brain mapping, specifically for human BA12.
- Ensures accurate functional localization in human brain research by using precise Brodmann numbers.
- Improves understanding of brain regions implicated in frontotemporal lobar degeneration (FTLD) and emotional regulation.
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