Hippocampal barques and their manifestation as 14&6 Hz positive spikes during sleep
This study investigates variations in hippocampal barque occurrence during sleep and compares findings to respective variations of their scalp manifestation as 14&6/sec positive spikes. From 11 epilepsy patients, 12 non-epileptogenic hippocampi with barques were identified for this study. Using...
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| Veröffentlicht in: | Clinical neurophysiology 2024-01, Vol.157, p.37-43 |
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| creator | Kokkinos, Vasileios Hussein, Helweh Sakelliadou, Danai Georgia Mark Richardson, R Bagić, Anto Ι Urban, Alexandra |
| description | This study investigates variations in hippocampal barque occurrence during sleep and compares findings to respective variations of their scalp manifestation as 14&6/sec positive spikes.
From 11 epilepsy patients, 12 non-epileptogenic hippocampi with barques were identified for this study. Using the first seizure-free whole-night sleep stereo-encephalography (sEEG) recording, we performed sleep staging and measured the occurrence of barques and 14&6/sec positive spikes variants.
Hippocampal barques (total count: 9,183; mean count per record: 765.2 ± 251.2) occurred predominantly during non-rapid eye movement (NREM) II sleep (total: 5,744; mean: 478.6 ± 176.1; 62.2 ± 6.0%) and slow-wave sleep (SWS) (total: 2,950; mean: 245.83 ± 92.9; 32.0 ± 6.2%), with rare to occasional occurrence in NREM I (total: 85; mean: 7.0 ± 2.8; 0.9 ± 0.4%), rapid eye movement (REM) (total: 153; mean: 12.75 ± 4.0; 1.7 ± 0.6) and wakefulness (total: 251; mean: 20.9 ± 6.3; 2.9 ± 0.9%). Barque rate increased during SWS (mean: 2.7 ± 1.0 per min) compared to NREM II (2.2 ± 1.0 per min) and other states (wakefulness: 0.1 ± 0.0 per min; NREM I: 0.3 ± 0.1 per min; REM: 0.1 ± 0.0 per min). The 14&6/sec positive spikes variant (total count: 2,406; mean: 343.7 ± 106.7) was present in NREM II (total: 2,059; mean: 249.1 ± 100.2, 84.9 ± 3.6%) and SWS (total: 347; mean: 49.5 ± 12.8, 15.0 ± 3.6%) stages, and absent from the rest of sleep and wakefulness. While all 14&6/sec positive spikes correlated with barques, only 44.7 ± 6.1% of barques manifested as 14&6/sec positive spikes.
Hippocampal barques are predominant in NREM II and SWS, and tend to increase their presence during SWS. Their scalp manifestation as 14&6/sec positive spikes is confounded by wakefulness, REM and NREM I stages, and "masked" by the co-occurrence of NREM II and SWS slow waves, and overlapping reactive micro-arousal elements.
Our study highlighted the overnight profile of hippocampal barques, in relation to the respective profile of their scalp manifestation, the 14&6/sec positive spikes variant. |
| doi_str_mv | 10.1016/j.clinph.2023.11.008 |
| format | Article |
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From 11 epilepsy patients, 12 non-epileptogenic hippocampi with barques were identified for this study. Using the first seizure-free whole-night sleep stereo-encephalography (sEEG) recording, we performed sleep staging and measured the occurrence of barques and 14&6/sec positive spikes variants.
Hippocampal barques (total count: 9,183; mean count per record: 765.2 ± 251.2) occurred predominantly during non-rapid eye movement (NREM) II sleep (total: 5,744; mean: 478.6 ± 176.1; 62.2 ± 6.0%) and slow-wave sleep (SWS) (total: 2,950; mean: 245.83 ± 92.9; 32.0 ± 6.2%), with rare to occasional occurrence in NREM I (total: 85; mean: 7.0 ± 2.8; 0.9 ± 0.4%), rapid eye movement (REM) (total: 153; mean: 12.75 ± 4.0; 1.7 ± 0.6) and wakefulness (total: 251; mean: 20.9 ± 6.3; 2.9 ± 0.9%). Barque rate increased during SWS (mean: 2.7 ± 1.0 per min) compared to NREM II (2.2 ± 1.0 per min) and other states (wakefulness: 0.1 ± 0.0 per min; NREM I: 0.3 ± 0.1 per min; REM: 0.1 ± 0.0 per min). The 14&6/sec positive spikes variant (total count: 2,406; mean: 343.7 ± 106.7) was present in NREM II (total: 2,059; mean: 249.1 ± 100.2, 84.9 ± 3.6%) and SWS (total: 347; mean: 49.5 ± 12.8, 15.0 ± 3.6%) stages, and absent from the rest of sleep and wakefulness. While all 14&6/sec positive spikes correlated with barques, only 44.7 ± 6.1% of barques manifested as 14&6/sec positive spikes.
Hippocampal barques are predominant in NREM II and SWS, and tend to increase their presence during SWS. Their scalp manifestation as 14&6/sec positive spikes is confounded by wakefulness, REM and NREM I stages, and "masked" by the co-occurrence of NREM II and SWS slow waves, and overlapping reactive micro-arousal elements.
Our study highlighted the overnight profile of hippocampal barques, in relation to the respective profile of their scalp manifestation, the 14&6/sec positive spikes variant.]]></description><identifier>ISSN: 1388-2457</identifier><identifier>EISSN: 1872-8952</identifier><identifier>DOI: 10.1016/j.clinph.2023.11.008</identifier><identifier>PMID: 38042011</identifier><language>eng</language><publisher>Netherlands</publisher><subject>Arousal - physiology ; Electroencephalography ; Hippocampus - physiology ; Humans ; Sleep - physiology ; Sleep Stages - physiology ; Wakefulness - physiology</subject><ispartof>Clinical neurophysiology, 2024-01, Vol.157, p.37-43</ispartof><rights>Copyright © 2023 International Federation of Clinical Neurophysiology. Published by Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c353t-aa5d1396125ef7cb1f99b8f7ec2093238f2a94e7076500efd5f0a6cc3eff6dbf3</citedby><cites>FETCH-LOGICAL-c353t-aa5d1396125ef7cb1f99b8f7ec2093238f2a94e7076500efd5f0a6cc3eff6dbf3</cites><orcidid>0009-0004-9619-861X ; 0000-0002-4309-5455 ; 0000-0003-3935-6218</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/38042011$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kokkinos, Vasileios</creatorcontrib><creatorcontrib>Hussein, Helweh</creatorcontrib><creatorcontrib>Sakelliadou, Danai Georgia</creatorcontrib><creatorcontrib>Mark Richardson, R</creatorcontrib><creatorcontrib>Bagić, Anto Ι</creatorcontrib><creatorcontrib>Urban, Alexandra</creatorcontrib><title>Hippocampal barques and their manifestation as 14&6 Hz positive spikes during sleep</title><title>Clinical neurophysiology</title><addtitle>Clin Neurophysiol</addtitle><description><![CDATA[This study investigates variations in hippocampal barque occurrence during sleep and compares findings to respective variations of their scalp manifestation as 14&6/sec positive spikes.
From 11 epilepsy patients, 12 non-epileptogenic hippocampi with barques were identified for this study. Using the first seizure-free whole-night sleep stereo-encephalography (sEEG) recording, we performed sleep staging and measured the occurrence of barques and 14&6/sec positive spikes variants.
Hippocampal barques (total count: 9,183; mean count per record: 765.2 ± 251.2) occurred predominantly during non-rapid eye movement (NREM) II sleep (total: 5,744; mean: 478.6 ± 176.1; 62.2 ± 6.0%) and slow-wave sleep (SWS) (total: 2,950; mean: 245.83 ± 92.9; 32.0 ± 6.2%), with rare to occasional occurrence in NREM I (total: 85; mean: 7.0 ± 2.8; 0.9 ± 0.4%), rapid eye movement (REM) (total: 153; mean: 12.75 ± 4.0; 1.7 ± 0.6) and wakefulness (total: 251; mean: 20.9 ± 6.3; 2.9 ± 0.9%). Barque rate increased during SWS (mean: 2.7 ± 1.0 per min) compared to NREM II (2.2 ± 1.0 per min) and other states (wakefulness: 0.1 ± 0.0 per min; NREM I: 0.3 ± 0.1 per min; REM: 0.1 ± 0.0 per min). The 14&6/sec positive spikes variant (total count: 2,406; mean: 343.7 ± 106.7) was present in NREM II (total: 2,059; mean: 249.1 ± 100.2, 84.9 ± 3.6%) and SWS (total: 347; mean: 49.5 ± 12.8, 15.0 ± 3.6%) stages, and absent from the rest of sleep and wakefulness. While all 14&6/sec positive spikes correlated with barques, only 44.7 ± 6.1% of barques manifested as 14&6/sec positive spikes.
Hippocampal barques are predominant in NREM II and SWS, and tend to increase their presence during SWS. Their scalp manifestation as 14&6/sec positive spikes is confounded by wakefulness, REM and NREM I stages, and "masked" by the co-occurrence of NREM II and SWS slow waves, and overlapping reactive micro-arousal elements.
Our study highlighted the overnight profile of hippocampal barques, in relation to the respective profile of their scalp manifestation, the 14&6/sec positive spikes variant.]]></description><subject>Arousal - physiology</subject><subject>Electroencephalography</subject><subject>Hippocampus - physiology</subject><subject>Humans</subject><subject>Sleep - physiology</subject><subject>Sleep Stages - physiology</subject><subject>Wakefulness - physiology</subject><issn>1388-2457</issn><issn>1872-8952</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kMtOwzAQRS0EoqXwBwh5hdgkeOw4cZaoAopUiQWwthzHpi55GDtBgq8nVQurO4t7ZkYHoUsgKRDIb7epblznNykllKUAKSHiCM1BFDQRJafH08yESGjGixk6i3FLCClIRk_RjIkpCcAcvayc971WrVcNrlT4HE3EqqvxsDEu4FZ1zpo4qMH1HVYRQ3ad49UP9n10g_syOHr3MSH1GFz3jmNjjD9HJ1Y10VwccoHeHu5fl6tk_fz4tLxbJ5pxNiRK8RpYmQPlxha6AluWlbCF0ZSUjDJhqSozU5Ai54QYW3NLVK41M9bmdWXZAt3s9_rQ7_4eZOuiNk2jOtOPUVJR5gKA02yqZvuqDn2MwVjpg2tV-JZA5E6n3Mq9TrnTKQHkpHPCrg4Xxqo19T_054_9AtTecz4</recordid><startdate>202401</startdate><enddate>202401</enddate><creator>Kokkinos, Vasileios</creator><creator>Hussein, Helweh</creator><creator>Sakelliadou, Danai Georgia</creator><creator>Mark Richardson, R</creator><creator>Bagić, Anto Ι</creator><creator>Urban, Alexandra</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0009-0004-9619-861X</orcidid><orcidid>https://orcid.org/0000-0002-4309-5455</orcidid><orcidid>https://orcid.org/0000-0003-3935-6218</orcidid></search><sort><creationdate>202401</creationdate><title>Hippocampal barques and their manifestation as 14&6 Hz positive spikes during sleep</title><author>Kokkinos, Vasileios ; Hussein, Helweh ; Sakelliadou, Danai Georgia ; Mark Richardson, R ; Bagić, Anto Ι ; Urban, Alexandra</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-aa5d1396125ef7cb1f99b8f7ec2093238f2a94e7076500efd5f0a6cc3eff6dbf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Arousal - physiology</topic><topic>Electroencephalography</topic><topic>Hippocampus - physiology</topic><topic>Humans</topic><topic>Sleep - physiology</topic><topic>Sleep Stages - physiology</topic><topic>Wakefulness - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kokkinos, Vasileios</creatorcontrib><creatorcontrib>Hussein, Helweh</creatorcontrib><creatorcontrib>Sakelliadou, Danai Georgia</creatorcontrib><creatorcontrib>Mark Richardson, R</creatorcontrib><creatorcontrib>Bagić, Anto Ι</creatorcontrib><creatorcontrib>Urban, Alexandra</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Clinical neurophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kokkinos, Vasileios</au><au>Hussein, Helweh</au><au>Sakelliadou, Danai Georgia</au><au>Mark Richardson, R</au><au>Bagić, Anto Ι</au><au>Urban, Alexandra</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hippocampal barques and their manifestation as 14&6 Hz positive spikes during sleep</atitle><jtitle>Clinical neurophysiology</jtitle><addtitle>Clin Neurophysiol</addtitle><date>2024-01</date><risdate>2024</risdate><volume>157</volume><spage>37</spage><epage>43</epage><pages>37-43</pages><issn>1388-2457</issn><eissn>1872-8952</eissn><abstract><![CDATA[This study investigates variations in hippocampal barque occurrence during sleep and compares findings to respective variations of their scalp manifestation as 14&6/sec positive spikes.
From 11 epilepsy patients, 12 non-epileptogenic hippocampi with barques were identified for this study. Using the first seizure-free whole-night sleep stereo-encephalography (sEEG) recording, we performed sleep staging and measured the occurrence of barques and 14&6/sec positive spikes variants.
Hippocampal barques (total count: 9,183; mean count per record: 765.2 ± 251.2) occurred predominantly during non-rapid eye movement (NREM) II sleep (total: 5,744; mean: 478.6 ± 176.1; 62.2 ± 6.0%) and slow-wave sleep (SWS) (total: 2,950; mean: 245.83 ± 92.9; 32.0 ± 6.2%), with rare to occasional occurrence in NREM I (total: 85; mean: 7.0 ± 2.8; 0.9 ± 0.4%), rapid eye movement (REM) (total: 153; mean: 12.75 ± 4.0; 1.7 ± 0.6) and wakefulness (total: 251; mean: 20.9 ± 6.3; 2.9 ± 0.9%). Barque rate increased during SWS (mean: 2.7 ± 1.0 per min) compared to NREM II (2.2 ± 1.0 per min) and other states (wakefulness: 0.1 ± 0.0 per min; NREM I: 0.3 ± 0.1 per min; REM: 0.1 ± 0.0 per min). The 14&6/sec positive spikes variant (total count: 2,406; mean: 343.7 ± 106.7) was present in NREM II (total: 2,059; mean: 249.1 ± 100.2, 84.9 ± 3.6%) and SWS (total: 347; mean: 49.5 ± 12.8, 15.0 ± 3.6%) stages, and absent from the rest of sleep and wakefulness. While all 14&6/sec positive spikes correlated with barques, only 44.7 ± 6.1% of barques manifested as 14&6/sec positive spikes.
Hippocampal barques are predominant in NREM II and SWS, and tend to increase their presence during SWS. Their scalp manifestation as 14&6/sec positive spikes is confounded by wakefulness, REM and NREM I stages, and "masked" by the co-occurrence of NREM II and SWS slow waves, and overlapping reactive micro-arousal elements.
Our study highlighted the overnight profile of hippocampal barques, in relation to the respective profile of their scalp manifestation, the 14&6/sec positive spikes variant.]]></abstract><cop>Netherlands</cop><pmid>38042011</pmid><doi>10.1016/j.clinph.2023.11.008</doi><tpages>7</tpages><orcidid>https://orcid.org/0009-0004-9619-861X</orcidid><orcidid>https://orcid.org/0000-0002-4309-5455</orcidid><orcidid>https://orcid.org/0000-0003-3935-6218</orcidid><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Arousal - physiology Electroencephalography Hippocampus - physiology Humans Sleep - physiology Sleep Stages - physiology Wakefulness - physiology |
| title | Hippocampal barques and their manifestation as 14&6 Hz positive spikes during sleep |
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