Related Experiment Video
Updated: May 16, 2026
08:49
Visualization of Cortical Modules in Flattened Mammalian Cortices
Published on: January 22, 2018
'Fore brain: a hint of the ancestral cortex
1Neurosciences Program, Stanford University, Stanford, CA 94305, USA.
Cell
|September 4, 2010
Summary
The mushroom body in Platynereis dumerilii exhibits similarities to the mammalian cerebral cortex. This suggests a shared evolutionary origin for these brain structures in a common ancestor.
Area of Science:
- Neuroscience
- Evolutionary Biology
- Comparative Anatomy
Background:
- Investigating the evolutionary history of brain structures provides insights into neurodevelopment and function.
- The mushroom body in invertebrates and the cerebral cortex in vertebrates are key brain regions involved in learning and memory.
Discussion:
- Tomer et al. (2010) employed gene expression profiling and image registration to compare brain structures.
- The study focused on the segmented worm Platynereis dumerilii and mammalian models.
Key Insights:
- The mushroom body of Platynereis dumerilii shares significant molecular and structural features with the mammalian cerebral cortex.
- This finding supports the hypothesis of a homologous ancestral brain structure.
Outlook:
- Further research can explore the genetic and developmental underpinnings of this shared ancestral structure.
- Comparative studies across a wider range of species can refine our understanding of brain evolution.
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