Article ; Online: Data-Driven Clustering of Functional Signals Reveals Gradients in Processing Both within the Anterior Hippocampus and across Its Long Axis.
The Journal of neuroscience : the official journal of the Society for Neuroscience
2022 Volume 42, Issue 39, Page(s) 7431–7441
Abstract: A particularly elusive puzzle concerning the hippocampus is how the structural differences along its long anteroposterior axis might beget meaningful functional differences, particularly in terms of the granularity of information processing. One measure ... ...
Abstract | A particularly elusive puzzle concerning the hippocampus is how the structural differences along its long anteroposterior axis might beget meaningful functional differences, particularly in terms of the granularity of information processing. One measure posits to quantify this granularity by calculating the average statistical independence of the BOLD signal across neighboring voxels, or intervoxel similarity (IVS), and has shown the anterior hippocampus to process coarser-grained information than the posterior hippocampus. This measure, however, has yielded opposing results in studies of developmental and healthy aging samples, which also varied in fMRI acquisition parameters and hippocampal parcellation methods. To reconcile these findings, we measured IVS across two separate resting-state fMRI acquisitions and compared the results across many of the most widely used parcellation methods in a large young-adult sample of male and female humans (Acquisition 1, |
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Language | English |
Publishing date | 2022-09-28 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 604637-x |
ISSN | 1529-2401 ; 0270-6474 |
ISSN (online) | 1529-2401 |
ISSN | 0270-6474 |
DOI | 10.1523/JNEUROSCI.0269-22.2022 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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