The Electroencephalogram in Alzheimer-Type Dementia

EEG Abnormalities Are Associated with Different Cognitive Profiles in Alzheimer’s Disease

“…In our study a substantial proportion of patients with AD (28%) showed no EEG abnormalities, in accordance with previous studies [9,11,12,13,24]. The neuropsychological test scores were relatively least impaired in this group of patients.…”

EEG Abnormalities Are Associated with Different Cognitive Profiles in Alzheimer’s Disease

“…In our study a substantial proportion of patients with AD (28%) showed no EEG abnormalities, in accordance with previous studies [9,11,12,13,24]. The neuropsychological test scores were relatively least impaired in this group of patients.…”

Use of Jonkman et al. Score for Visual Quantification of Electroencephalography as a Tool to Assess Disease Severity in Cortical Dementias

“…Rae-Grant et al . found correlation between severity of dementia assessed by Brief Cognitive Rating Scale and degree of pathologic EEG findings and they also observed that EEG slowing at the time of diagnosis of AD is a sensitive marker of cognitive decline and suggests a higher need for institutionalization[78910] which is supported by our study in both Frontotemporal and Alzheimer's type of dementia. The limitations of this study are the small number, very less number in the mild group, and lack of longitudinal evaluation.…”

Different Abnormalities of Cortical Neural Synchronization Mechanisms in Patients with Mild Cognitive Impairment due to Alzheimer’s and Chronic Kidney Diseases: An EEG Study

“…Some hints come from neuroimaging studies in AD patients. It has repeatedly been shown that in ADD patients, an abnormal widespread increase of resting state delta rhythms was related to a decrease of regional cortical blood perfusion and metabolism, as revealed by single photon emission computed tomography or FDG-PET, and local cortical neurodegeneration, disclosed by T1-weighted MRI [49,[93][94][95][96]. More recently, our group replicated those previous data showing the correlation of widespread delta source activities with posterior cortical hypometabolism and gray matter atrophy [53,54].…”

EEG Abnormalities Are Associated with Different Cognitive Profiles in Alzheimer’s Disease

“…In our study a substantial proportion of patients with AD (28%) showed no EEG abnormalities, in accordance with previous studies [9,11,12,13,24]. The neuropsychological test scores were relatively least impaired in this group of patients.…”

Use of Jonkman et al. Score for Visual Quantification of Electroencephalography as a Tool to Assess Disease Severity in Cortical Dementias

“…Rae-Grant et al . found correlation between severity of dementia assessed by Brief Cognitive Rating Scale and degree of pathologic EEG findings and they also observed that EEG slowing at the time of diagnosis of AD is a sensitive marker of cognitive decline and suggests a higher need for institutionalization[78910] which is supported by our study in both Frontotemporal and Alzheimer's type of dementia. The limitations of this study are the small number, very less number in the mild group, and lack of longitudinal evaluation.…”

Different Abnormalities of Cortical Neural Synchronization Mechanisms in Patients with Mild Cognitive Impairment due to Alzheimer’s and Chronic Kidney Diseases: An EEG Study

“…Some hints come from neuroimaging studies in AD patients. It has repeatedly been shown that in ADD patients, an abnormal widespread increase of resting state delta rhythms was related to a decrease of regional cortical blood perfusion and metabolism, as revealed by single photon emission computed tomography or FDG-PET, and local cortical neurodegeneration, disclosed by T1-weighted MRI [49,[93][94][95][96]. More recently, our group replicated those previous data showing the correlation of widespread delta source activities with posterior cortical hypometabolism and gray matter atrophy [53,54].…”

EEG Abnormalities Are Associated with Different Cognitive Profiles in Alzheimer’s Disease

“…In our study a substantial proportion of patients with AD (28%) showed no EEG abnormalities, in accordance with previous studies [9,11,12,13,24]. The neuropsychological test scores were relatively least impaired in this group of patients.…”

Use of Jonkman et al. Score for Visual Quantification of Electroencephalography as a Tool to Assess Disease Severity in Cortical Dementias

“…Rae-Grant et al . found correlation between severity of dementia assessed by Brief Cognitive Rating Scale and degree of pathologic EEG findings and they also observed that EEG slowing at the time of diagnosis of AD is a sensitive marker of cognitive decline and suggests a higher need for institutionalization[78910] which is supported by our study in both Frontotemporal and Alzheimer's type of dementia. The limitations of this study are the small number, very less number in the mild group, and lack of longitudinal evaluation.…”

Different Abnormalities of Cortical Neural Synchronization Mechanisms in Patients with Mild Cognitive Impairment due to Alzheimer’s and Chronic Kidney Diseases: An EEG Study

“…Some hints come from neuroimaging studies in AD patients. It has repeatedly been shown that in ADD patients, an abnormal widespread increase of resting state delta rhythms was related to a decrease of regional cortical blood perfusion and metabolism, as revealed by single photon emission computed tomography or FDG-PET, and local cortical neurodegeneration, disclosed by T1-weighted MRI [49,[93][94][95][96]. More recently, our group replicated those previous data showing the correlation of widespread delta source activities with posterior cortical hypometabolism and gray matter atrophy [53,54].…”