ArticleCerebral cortex (New York, N.Y. : 1991)2023
3D synaptic organization of layer III of the human anterior cingulate and temporopolar cortex.
Article in Cerebral cortex (New York, N.Y. : 1991), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 26 citations in OpenAlex.
- Age-related changes in synapse ultrastructure and neuroprotective effect of dietary curcumin in the lateral prefrontal cortex layer 3 of the rhesus monkey.GeroScience · 2026Article
- Layer-specific cellular composition of mouse primary somatosensory and human temporal cortex: a direct 3D confocal counting approach.Frontiers in neuroanatomy · 2026Article
- Traditions of Excellence: neuroanatomy at the forefront of the new era.Anatomical science international · 2025Review
- The synaptic organization of the human temporal lobe neocortex by high-resolution transmission, focused ion beam scanning, and electron microscopic tomography.Anatomical science international · 2025Review
- Article
- Volume electron microscopy reveals 3D synaptic nanoarchitecture in postmortem human prefrontal cortex.iScience · 2025Article
- Of mice and men: Dendritic architecture differentiates human from mouse neuronal networks.iScience · 2025Article
- Volume electron microscopy reveals unique laminar synaptic characteristics in the human entorhinal cortex.eLife · 2025Article
- Synaptic transmission in supragranular layers of the human cortex - comparative review of structure, function, and plasticity.Frontiers in synaptic neuroscience · 2025Review
- Invariance of Mitochondria and Synapses in the Primary Visual Cortex of Mammals Provides Insight Into Energetics and Function.The Journal of comparative neurology · 2024Article
- Volume electron microscopy analysis of synapses in primary regions of the human cerebral cortex.Cerebral cortex (New York, N.Y. : 1991) · 2024Article
- A petavoxel fragment of human cerebral cortex reconstructed at nanoscale resolution.Science (New York, N.Y.) · 2024Article
- Unambiguous identification of asymmetric and symmetric synapses using volume electron microscopy.Frontiers in neuroanatomy · 2024Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The human anterior cingulate and temporopolar cortices have been proposed as highly connected nodes involved in high-order cognitive functions, but their synaptic organization is still basically unknown due to the difficulties involved in studying the human brain. Using Focused Ion Beam/Scanning Electron Microscopy (FIB/SEM) to study the synaptic organization of the human brain obtained with a short post-mortem delay allows excellent results to be obtained. We have used this technology to analyze layer III of the anterior cingulate cortex (Brodmann area 24) and the temporopolar cortex, including the temporal pole (Brodmann area 38 ventral and dorsal) and anterior middle temporal gyrus (Brodmann area 21). Our results, based on 6695 synaptic junctions fully reconstructed in 3D, revealed that Brodmann areas 24, 21 and ventral area 38 showed similar synaptic density and synaptic size, whereas dorsal area 38 displayed the highest synaptic density and the smallest synaptic size. However, the proportion of the different types of synapses (excitatory and inhibitory), the postsynaptic targets, and the shapes of excitatory and inhibitory synapses were similar, regardless of the region examined. These observations indicate that certain aspects of the synaptic organization are rather homogeneous, whereas others show specific variations across cortical regions.
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