DocumentCode :
1789596
Title :
The function coupling in young adults, old controls and old cognitively declined adults
Author :
Ling Wei ; Yingjie Li ; Dan Cao
Author_Institution :
Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai, China
fYear :
2014
fDate :
14-16 Oct. 2014
Firstpage :
388
Lastpage :
392
Abstract :
This study explored the phase synchronization in young, old adults, and old cognitively declined adults using 2 minutes baseline resting EEG data. Sixteen young students recruited from shanghai university and eighteen elders recruited from a community in Shanghai, including nine old adults and nine old cognitively declined adults, participated in our experiment. The global phase synchrony index was calculated in each 1 second epoch and averaged for all EEG frequency band (delta, theta, alpha1, alpha2, beta, gamma1, gamma2). Then, we analyzed global phase synchronization, fronto-parietal functional coupling and frontal functional coupling at alpha2 band for three groups. The results revealed that old declined adults had decreased global phase synchronization at theta and alpha2 bands and lower frontal and fronto-parietal functional coupling at alpha2 band than old controls. Relative to young adults, the old controls had an active mechanism of compensation to maintain normal cognitive performance. In conclude the frontal and fronto-parietal functional coupling in alpha band may be helpful markers of cognitive decline associated with aging.
Keywords :
cognition; electroencephalography; geriatrics; synchronisation; EEG frequency band; Shanghai university; active mechanism; aging; alpha band; alpha2 bands; baseline resting EEG data; cognitive decline; fronto-parietal functional coupling; global phase synchronization; global phase synchrony index; lower frontal functional coupling; normal cognitive performance; old cognitively declined adults; theta bands; time 1 s; time 2 min; young adults; Aging; Alzheimer´s disease; Couplings; Electroencephalography; Indexes; Synchronization; EEG; Phase Synchronization; cognitively declined; function coupling;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Engineering and Informatics (BMEI), 2014 7th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4799-5837-5
Type :
conf
DOI :
10.1109/BMEI.2014.7002805
Filename :
7002805
Link To Document :
بازگشت