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    Revealing the confusion of the evolution of the term sagittal stratum. Historical overview and systematic literature review
    (Elsevier Masson, Corp Off, 2024) Gulsuna, Beste; Gungor, Abuzer; Borcer, Alp O.; Ture, Ugur
    The fiber dissection technique is one of the earliest methods used to demonstrate the in-ternal structures of the brain, but until the development of fiber tractography, most neuroanatomy studies were related to the cerebral cortex and less attention was given to the white matter. During the historical evolution of white matter dissection, debates have arisen about tissue preservation methods, dissection methodology, nomenclature, and efforts to adopt findings from primates to the human brain. Since its first description, the sagittal stratum has been one of the white matter structures subject to controversy and has not been sufficiently considered in the literature. With recent functional studies suggesting potential functions of the sagittal stratum, the importance of attaining a precise under-standing of this structure and its constituent fiber tracts is further highlighted. This study revisits the historical background of white matter dissection, unveils the early synony-mous descriptions of the sagittal stratum, and provides a systematic review of the current literature. Through evaluation of the historical statements about the sagittal stratum, we provide an understanding of the divergence and explain the reasons for the ambiguity. We believe that acquiring such an understanding will lead to further investigations on this subject, which has the potential to benefit in addressing various neuropsychiatric condi-tions, maintaining functional connectivity, and optimizing surgical outcomes.(c) 2023 Elsevier Ltd. All rights reserved.