Different functional connectivity and network topology in behavioral variant of frontotemporal dementia and Alzheimer's disease: an EEG study
We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. F...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Yu, Meichen [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016transfer abstract |
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| Schlagwörter: |
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| Umfang: |
13 |
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| Übergeordnetes Werk: |
Enthalten in: Corrigendum to “Electrical and thermal transport properties of Fe–Ni based ternary alloys in the earth's inner core: An ab initio study” [Physics of the Earth and Planetary Interiors - Zidane, Mustapha ELSEVIER, 2021, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:42 ; year:2016 ; pages:150-162 ; extent:13 |
| Links: |
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| DOI / URN: |
10.1016/j.neurobiolaging.2016.03.018 |
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ELV035232420 |
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| 520 | |a We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. | ||
| 520 | |a We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. | ||
| 650 | 7 | |a Functional connectivity |2 Elsevier | |
| 650 | 7 | |a Subjective cognitive decline |2 Elsevier | |
| 650 | 7 | |a Behavioral variant of frontotemporal dementia |2 Elsevier | |
| 650 | 7 | |a Network topology |2 Elsevier | |
| 650 | 7 | |a Electroencephalography |2 Elsevier | |
| 650 | 7 | |a Alzheimer's disease |2 Elsevier | |
| 700 | 1 | |a Gouw, Alida A. |4 oth | |
| 700 | 1 | |a Hillebrand, Arjan |4 oth | |
| 700 | 1 | |a Tijms, Betty M. |4 oth | |
| 700 | 1 | |a Stam, Cornelis Jan |4 oth | |
| 700 | 1 | |a van Straaten, Elisabeth C.W. |4 oth | |
| 700 | 1 | |a Pijnenburg, Yolande A.L. |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Zidane, Mustapha ELSEVIER |t Corrigendum to “Electrical and thermal transport properties of Fe–Ni based ternary alloys in the earth's inner core: An ab initio study” [Physics of the Earth and Planetary Interiors |d 2021 |g Amsterdam [u.a.] |w (DE-627)ELV005660645 |
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10.1016/j.neurobiolaging.2016.03.018 doi GBVA2016008000028.pica (DE-627)ELV035232420 (ELSEVIER)S0197-4580(16)30002-1 DE-627 ger DE-627 rakwb eng 610 610 DE-600 550 520 VZ 38.70 bkl 39.53 bkl Yu, Meichen verfasserin aut Different functional connectivity and network topology in behavioral variant of frontotemporal dementia and Alzheimer's disease: an EEG study 2016transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. Functional connectivity Elsevier Subjective cognitive decline Elsevier Behavioral variant of frontotemporal dementia Elsevier Network topology Elsevier Electroencephalography Elsevier Alzheimer's disease Elsevier Gouw, Alida A. oth Hillebrand, Arjan oth Tijms, Betty M. oth Stam, Cornelis Jan oth van Straaten, Elisabeth C.W. oth Pijnenburg, Yolande A.L. oth Enthalten in Elsevier Science Zidane, Mustapha ELSEVIER Corrigendum to “Electrical and thermal transport properties of Fe–Ni based ternary alloys in the earth's inner core: An ab initio study” [Physics of the Earth and Planetary Interiors 2021 Amsterdam [u.a.] (DE-627)ELV005660645 volume:42 year:2016 pages:150-162 extent:13 https://doi.org/10.1016/j.neurobiolaging.2016.03.018 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST 38.70 Geophysik: Allgemeines VZ 39.53 Planeten VZ AR 42 2016 150-162 13 045F 610 |
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10.1016/j.neurobiolaging.2016.03.018 doi GBVA2016008000028.pica (DE-627)ELV035232420 (ELSEVIER)S0197-4580(16)30002-1 DE-627 ger DE-627 rakwb eng 610 610 DE-600 550 520 VZ 38.70 bkl 39.53 bkl Yu, Meichen verfasserin aut Different functional connectivity and network topology in behavioral variant of frontotemporal dementia and Alzheimer's disease: an EEG study 2016transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. Functional connectivity Elsevier Subjective cognitive decline Elsevier Behavioral variant of frontotemporal dementia Elsevier Network topology Elsevier Electroencephalography Elsevier Alzheimer's disease Elsevier Gouw, Alida A. oth Hillebrand, Arjan oth Tijms, Betty M. oth Stam, Cornelis Jan oth van Straaten, Elisabeth C.W. oth Pijnenburg, Yolande A.L. oth Enthalten in Elsevier Science Zidane, Mustapha ELSEVIER Corrigendum to “Electrical and thermal transport properties of Fe–Ni based ternary alloys in the earth's inner core: An ab initio study” [Physics of the Earth and Planetary Interiors 2021 Amsterdam [u.a.] (DE-627)ELV005660645 volume:42 year:2016 pages:150-162 extent:13 https://doi.org/10.1016/j.neurobiolaging.2016.03.018 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST 38.70 Geophysik: Allgemeines VZ 39.53 Planeten VZ AR 42 2016 150-162 13 045F 610 |
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10.1016/j.neurobiolaging.2016.03.018 doi GBVA2016008000028.pica (DE-627)ELV035232420 (ELSEVIER)S0197-4580(16)30002-1 DE-627 ger DE-627 rakwb eng 610 610 DE-600 550 520 VZ 38.70 bkl 39.53 bkl Yu, Meichen verfasserin aut Different functional connectivity and network topology in behavioral variant of frontotemporal dementia and Alzheimer's disease: an EEG study 2016transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. Functional connectivity Elsevier Subjective cognitive decline Elsevier Behavioral variant of frontotemporal dementia Elsevier Network topology Elsevier Electroencephalography Elsevier Alzheimer's disease Elsevier Gouw, Alida A. oth Hillebrand, Arjan oth Tijms, Betty M. oth Stam, Cornelis Jan oth van Straaten, Elisabeth C.W. oth Pijnenburg, Yolande A.L. oth Enthalten in Elsevier Science Zidane, Mustapha ELSEVIER Corrigendum to “Electrical and thermal transport properties of Fe–Ni based ternary alloys in the earth's inner core: An ab initio study” [Physics of the Earth and Planetary Interiors 2021 Amsterdam [u.a.] (DE-627)ELV005660645 volume:42 year:2016 pages:150-162 extent:13 https://doi.org/10.1016/j.neurobiolaging.2016.03.018 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST 38.70 Geophysik: Allgemeines VZ 39.53 Planeten VZ AR 42 2016 150-162 13 045F 610 |
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10.1016/j.neurobiolaging.2016.03.018 doi GBVA2016008000028.pica (DE-627)ELV035232420 (ELSEVIER)S0197-4580(16)30002-1 DE-627 ger DE-627 rakwb eng 610 610 DE-600 550 520 VZ 38.70 bkl 39.53 bkl Yu, Meichen verfasserin aut Different functional connectivity and network topology in behavioral variant of frontotemporal dementia and Alzheimer's disease: an EEG study 2016transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. Functional connectivity Elsevier Subjective cognitive decline Elsevier Behavioral variant of frontotemporal dementia Elsevier Network topology Elsevier Electroencephalography Elsevier Alzheimer's disease Elsevier Gouw, Alida A. oth Hillebrand, Arjan oth Tijms, Betty M. oth Stam, Cornelis Jan oth van Straaten, Elisabeth C.W. oth Pijnenburg, Yolande A.L. oth Enthalten in Elsevier Science Zidane, Mustapha ELSEVIER Corrigendum to “Electrical and thermal transport properties of Fe–Ni based ternary alloys in the earth's inner core: An ab initio study” [Physics of the Earth and Planetary Interiors 2021 Amsterdam [u.a.] (DE-627)ELV005660645 volume:42 year:2016 pages:150-162 extent:13 https://doi.org/10.1016/j.neurobiolaging.2016.03.018 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST 38.70 Geophysik: Allgemeines VZ 39.53 Planeten VZ AR 42 2016 150-162 13 045F 610 |
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10.1016/j.neurobiolaging.2016.03.018 doi GBVA2016008000028.pica (DE-627)ELV035232420 (ELSEVIER)S0197-4580(16)30002-1 DE-627 ger DE-627 rakwb eng 610 610 DE-600 550 520 VZ 38.70 bkl 39.53 bkl Yu, Meichen verfasserin aut Different functional connectivity and network topology in behavioral variant of frontotemporal dementia and Alzheimer's disease: an EEG study 2016transfer abstract 13 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. Functional connectivity Elsevier Subjective cognitive decline Elsevier Behavioral variant of frontotemporal dementia Elsevier Network topology Elsevier Electroencephalography Elsevier Alzheimer's disease Elsevier Gouw, Alida A. oth Hillebrand, Arjan oth Tijms, Betty M. oth Stam, Cornelis Jan oth van Straaten, Elisabeth C.W. oth Pijnenburg, Yolande A.L. oth Enthalten in Elsevier Science Zidane, Mustapha ELSEVIER Corrigendum to “Electrical and thermal transport properties of Fe–Ni based ternary alloys in the earth's inner core: An ab initio study” [Physics of the Earth and Planetary Interiors 2021 Amsterdam [u.a.] (DE-627)ELV005660645 volume:42 year:2016 pages:150-162 extent:13 https://doi.org/10.1016/j.neurobiolaging.2016.03.018 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST 38.70 Geophysik: Allgemeines VZ 39.53 Planeten VZ AR 42 2016 150-162 13 045F 610 |
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Enthalten in Corrigendum to “Electrical and thermal transport properties of Fe–Ni based ternary alloys in the earth's inner core: An ab initio study” [Physics of the Earth and Planetary Interiors Amsterdam [u.a.] volume:42 year:2016 pages:150-162 extent:13 |
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Different functional connectivity and network topology in behavioral variant of frontotemporal dementia and Alzheimer's disease: an EEG study |
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We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. |
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We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. |
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We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders. |
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Different functional connectivity and network topology in behavioral variant of frontotemporal dementia and Alzheimer's disease: an EEG study |
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Our findings suggest different pathophysiological mechanisms in these 2 separate neurodegenerative disorders.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">We investigated whether the functional connectivity and network topology in 69 Alzheimer's disease (AD), 48 behavioral variant of frontotemporal dementia (bvFTD) patients, and 64 individuals with subjective cognitive decline are different using resting-state electroencephalography recordings. Functional connectivity between all pairs of electroencephalography channels was assessed using the phase lag index (PLI). We subsequently calculated PLI-weighted networks, from which minimum spanning trees (MSTs) were constructed. Finally, we investigated the hierarchical clustering organization of the MSTs. Functional connectivity analysis showed frequency-dependent results: in the delta band, bvFTD showed highest whole-brain PLI; in the theta band, the whole-brain PLI in AD was higher than that in bvFTD; in the alpha band, AD showed lower whole-brain PLI compared with bvFTD and subjective cognitive decline. The MST results indicate that frontal networks appear to be selectively involved in bvFTD against the background of preserved global efficiency, whereas parietal and occipital loss of network organization in AD is accompanied by global efficiency loss. 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