Cargando…

The Zeitraffer Phenomenon: A Strategic Ischemic Infarct of the Banks of the Parieto-Occipital Sulcus - A Unique Case Report and a Side Note on the Neuroanatomy of Visual Perception

We describe the remarkable case of a medically healthy right-handed 15-year-old boy who developed an ischemic infarct of the banks of the right parieto-occipital sulcus (POs). The etiology of this infarct was undetermined, that is, cryptogenic. However, the focus of this article is functional neuroa...

Descripción completa

Detalles Bibliográficos
Autor principal: Kesserwani, Hassan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7451087/
https://www.ncbi.nlm.nih.gov/pubmed/32864267
http://dx.doi.org/10.7759/cureus.9443
_version_ 1783574918498091008
author Kesserwani, Hassan
author_facet Kesserwani, Hassan
author_sort Kesserwani, Hassan
collection PubMed
description We describe the remarkable case of a medically healthy right-handed 15-year-old boy who developed an ischemic infarct of the banks of the right parieto-occipital sulcus (POs). The etiology of this infarct was undetermined, that is, cryptogenic. However, the focus of this article is functional neuroanatomy, as our patient developed a specific entity; an optic flow motion deficit characterized by slow self-motion of the left half of his body (egomotion) and slow motion of the surroundings (allocentric motion) together constituting the Zeitraffer phenomenon. We describe the neuroanatomy and neurophysiology of the dorsal visual stream and correlate the localization of this type of infarct in our patient with the known functional neuroanatomy. Although lesional studies in Macaque monkeys and functional MRI studies in humans have documented the clinical-functional correlations of POs lesions and perceived motion deficits, our case is one of the very first human cases in the literature that pinpoints the Zeitraffer phenomenon to a specific and strategic circumscribed ischemic stroke in the region of the POs.
format Online
Article
Text
id pubmed-7451087
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Cureus
record_format MEDLINE/PubMed
spelling pubmed-74510872020-08-28 The Zeitraffer Phenomenon: A Strategic Ischemic Infarct of the Banks of the Parieto-Occipital Sulcus - A Unique Case Report and a Side Note on the Neuroanatomy of Visual Perception Kesserwani, Hassan Cureus Neurology We describe the remarkable case of a medically healthy right-handed 15-year-old boy who developed an ischemic infarct of the banks of the right parieto-occipital sulcus (POs). The etiology of this infarct was undetermined, that is, cryptogenic. However, the focus of this article is functional neuroanatomy, as our patient developed a specific entity; an optic flow motion deficit characterized by slow self-motion of the left half of his body (egomotion) and slow motion of the surroundings (allocentric motion) together constituting the Zeitraffer phenomenon. We describe the neuroanatomy and neurophysiology of the dorsal visual stream and correlate the localization of this type of infarct in our patient with the known functional neuroanatomy. Although lesional studies in Macaque monkeys and functional MRI studies in humans have documented the clinical-functional correlations of POs lesions and perceived motion deficits, our case is one of the very first human cases in the literature that pinpoints the Zeitraffer phenomenon to a specific and strategic circumscribed ischemic stroke in the region of the POs. Cureus 2020-07-28 /pmc/articles/PMC7451087/ /pubmed/32864267 http://dx.doi.org/10.7759/cureus.9443 Text en Copyright © 2020, Kesserwani et al. http://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Neurology
Kesserwani, Hassan
The Zeitraffer Phenomenon: A Strategic Ischemic Infarct of the Banks of the Parieto-Occipital Sulcus - A Unique Case Report and a Side Note on the Neuroanatomy of Visual Perception
title The Zeitraffer Phenomenon: A Strategic Ischemic Infarct of the Banks of the Parieto-Occipital Sulcus - A Unique Case Report and a Side Note on the Neuroanatomy of Visual Perception
title_full The Zeitraffer Phenomenon: A Strategic Ischemic Infarct of the Banks of the Parieto-Occipital Sulcus - A Unique Case Report and a Side Note on the Neuroanatomy of Visual Perception
title_fullStr The Zeitraffer Phenomenon: A Strategic Ischemic Infarct of the Banks of the Parieto-Occipital Sulcus - A Unique Case Report and a Side Note on the Neuroanatomy of Visual Perception
title_full_unstemmed The Zeitraffer Phenomenon: A Strategic Ischemic Infarct of the Banks of the Parieto-Occipital Sulcus - A Unique Case Report and a Side Note on the Neuroanatomy of Visual Perception
title_short The Zeitraffer Phenomenon: A Strategic Ischemic Infarct of the Banks of the Parieto-Occipital Sulcus - A Unique Case Report and a Side Note on the Neuroanatomy of Visual Perception
title_sort zeitraffer phenomenon: a strategic ischemic infarct of the banks of the parieto-occipital sulcus - a unique case report and a side note on the neuroanatomy of visual perception
topic Neurology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7451087/
https://www.ncbi.nlm.nih.gov/pubmed/32864267
http://dx.doi.org/10.7759/cureus.9443
work_keys_str_mv AT kesserwanihassan thezeitrafferphenomenonastrategicischemicinfarctofthebanksoftheparietooccipitalsulcusauniquecasereportandasidenoteontheneuroanatomyofvisualperception
AT kesserwanihassan zeitrafferphenomenonastrategicischemicinfarctofthebanksoftheparietooccipitalsulcusauniquecasereportandasidenoteontheneuroanatomyofvisualperception