Hippocampal involvement in nonpathological deja vu: Subfield vulnerability rather than temporal lobe epilepsy equivalent

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F65269705%3A_____%2F18%3A00070442" target="_blank" >RIV/65269705:_____/18:00070442 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14110/18:00105516

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/brb3.996" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/brb3.996</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/brb3.996" target="_blank" >10.1002/brb3.996</a>

Result language

angličtina

Original language name

Hippocampal involvement in nonpathological deja vu: Subfield vulnerability rather than temporal lobe epilepsy equivalent

Original language description

Introduction: Morphological correlates of nonpathological deja vu (DV) have been identified recently within the human brain. Significantly reduced gray matter volume (GMV) within a set of cortical and subcortical regions reported in subjects experiencing DV seems to mirror the distribution of GMV reduction in mesial temporal lobe epilepsy (MTLE) patients but vary in terms of the hippocampus. Another condition associated with hippocampal GMV reduction and DV alike disturbance in memory processing is schizophrenia (SCH). Here, we tested the hypothesis that hippocampal involvement in nonpathological DV resembles more closely the pattern of GMV decrease observed in MTLE compared with that occurring in SCH. Methods: Using automated segmentation of the MRI data we compared the medians of GMV within 12 specific hippocampal subfields in healthy individuals that do (DV+; N = 87) and do not report deja vu experience (DV-; N = 26), and patients with MTLE (N = 47) and SCH (N = 29). By Pearson correlation, we then evaluated the similarity of MTLE and SCH groups to DV+ group with respect to spatial distribution of GMV deviation from DV- group. Results: Significant GMV decrease was found in MTLE group in most of the subfields. There were just trends in the hippocampal GMV decrease found in DV+ or SCH groups. Concerning the spatial distribution of GMV decrease, we revealed statistically significant correlation for the left hippocampus for SCH vs DV+, Otherwise there was no statistically significant correlation. Conclusions: Our findings reveal structural features of hippocampal involvement in nonpathological DV, MTLE, and SCH. Despite our expectations, the pattern of GMV reduction in the DV+ relative to the DV- group does not resemble the pattern observed in MTLE any more than that observed in SCH. The highly similar patterns of the three clinical groups rather suggest an increased vulnerability of certain hippocampal subfields; namely, Cornu Ammonis (CA)4, CA3, dentate gyrus granular cell layer (GC-DG), hippocampal-amygdaloid transition area (HATA) and subiculum.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30103 - Neurosciences (including psychophysiology)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Brain and Behavior

ISSN

2162-3279

e-ISSN

—

Volume of the periodical

8

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

"nestrankovano"

UT code for WoS article

000438495400021

EID of the result in the Scopus database

2-s2.0-85049847041