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@ARTICLE{Wojtasik:874486,
author = {Wojtasik, Magdalena and Bludau, Sebastian and Eickhoff,
Simon B. and Mohlberg, Hartmut and Gerboga, Fatma and
Caspers, Svenja and Amunts, Katrin},
title = {{C}ytoarchitectonic {C}haracterization and {F}unctional
{D}ecoding of {F}our {N}ew {A}reas in the {H}uman {L}ateral
{O}rbitofrontal {C}ortex},
journal = {Frontiers in neuroanatomy},
volume = {14},
issn = {1662-5129},
address = {Lausanne},
publisher = {Frontiers Research Foundation},
reportid = {FZJ-2020-01465},
pages = {2},
year = {2020},
note = {We thank Prof. Karl Zilles and Prof. Rüdiger Seitz for
their continuous input and support throughout the whole
project time. Special thanks also go out to Julia Camilleri
for her assistance and help.},
abstract = {A comprehensive concept of the biological basis of reward,
social and emotional behavior, and language requires a
deeper understanding of the microstructure and connectivity
of the underlying brain regions. Such understanding could
provide deeper insights into their role in functional
networks, and form the anatomical basis of the functional
segregation of this region as shown in recent in vivo
imaging studies. Here, we investigated the cytoarchitecture
of the lateral orbitofrontal cortex (lateral OFC) in serial
histological sections of 10 human postmortem brains by image
analysis and a statistically reproducible approach to detect
borders between cortical areas. Profiles of the volume
fraction of cell bodies were therefore extracted from
digitized histological images, describing laminar changes
from the layer I/layer II boundary to the white matter. As a
result, four new areas, Fo4–7, were identified. Area Fo4
was mainly found in the anterior orbital gyrus (AOG), Fo5
anteriorly in the inferior frontal gyrus (IFG), Fo6 in the
lateral orbital gyrus (LOG), and Fo7 in the lateral orbital
sulcus. Areas differed in cortical thickness, abundance and
size of pyramidal cells in layer III and degree of
granularity in layer IV. A hierarchical cluster analysis was
used to quantify cytoarchitectonic differences between them.
The 3D-reconstructed areas were transformed into the
single-subject template of the Montreal Neurological
Institute (MNI), where probabilistic maps and a maximum
probability map (MPM) were calculated as part of the JuBrain
Cytoarchitectonic Atlas. These maps served as reference data
to study the functional properties of the areas using the
BrainMap database. The type of behavioral tasks that
activated them was analyzed to get first insights of
co-activation patterns of the lateral OFC and its
contribution to cognitive networks. Meta-analytic
connectivity modeling (MACM) showed that functional decoding
revealed activation in gustatory perception in Fo4; reward
and somesthetic perception in Fo5; semantic processing and
pain perception in Fo6; and emotional processing and covert
reading in Fo7. Together with existing maps of the JuBrain
Cytoarchitectonic Atlas, the new maps can now be used as an
open-source reference for neuroimaging studies, allowing to
further decode brain function.},
cin = {INM-1 / INM-7},
ddc = {610},
cid = {I:(DE-Juel1)INM-1-20090406 / I:(DE-Juel1)INM-7-20090406},
pnm = {571 - Connectivity and Activity (POF3-571) / HBP SGA2 -
Human Brain Project Specific Grant Agreement 2 (785907)},
pid = {G:(DE-HGF)POF3-571 / G:(EU-Grant)785907},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:32116573},
UT = {WOS:000517116500001},
doi = {10.3389/fnana.2020.00002},
url = {https://juser.fz-juelich.de/record/874486},
}