40-Hz steady state response in Alzheimer's disease and mild cognitive impairment

Deursen, Jeroen A. van; Vuurman, E.F.P.M.; Kranen-Mastenbroek, Vivianne H.J.M. van; Verhey, Frans R.J.; Riedel, Wim J.

doi:10.1016/j.neurobiolaging.2009.01.002

Cited by 69 publications

(78 citation statements)

References 39 publications

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“…The literature on test-retest reliability of ASSR is limited to clinical studies of hearing levels in audiology research (Kaf et al, 2006), or frequency-based fast-Fourier transformation measurements of evoked power (van Deursen et al, 2011). However, reliability of evoked power and phase consistency across repeated test sessions has been demonstrated in the visual domain (Frund et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Converging evidence for gamma synchrony deficits in schizophrenia

Roach

Ford

Hoffman

et al. 2013

Supplements to Clinical Neurophysiology

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Background In electroencephalogram (EEG) studies of auditory steady-state responses (ASSR), patients with schizophrenia show a deficit in power and/or phase-locking, particularly at the 40Hz frequency where these responses resonate. In addition, studies of the transient gamma band response (GBR) elicited by single tones have revealed deficits in gamma power and phase-locking in schizophrenia. We examined the degree to which the 40 Hz ASSR and the transient GBR to single tones are correlated and whether they assess overlapping or distinct gamma band abnormalities in schizophrenia. Methods EEG was recorded during 40 Hz ASSR and auditory oddball paradigms from 28 patients with schizophrenia or schizoaffective disorder (SZ) and 25 age- and gender-matched healthy controls (HC). The ASSR was elicited by 500 ms click trains, and the transient GBR was elicited by the standard tones from the oddball paradigm. Gamma phase and magnitude values, calculated using Morlet Wavelet transformations, were used to derive total power and phase-locking measures. Results Relative to HC, SZ patients had significant deficits in total gamma power and phase-locking for both ASSR- and GBR-based measures. Within both groups, the 40 Hz ASSR and GBR phase-locking measures were significantly correlated, with a similar trend evident for the total power measures. Moreover, co-varying for GBR substantially reduced 40 Hz ASSR power and phase-locking differences between the groups. Conclusions 40 Hz ASSR and transient GBR measures provide very similar information about auditory gamma abnormalities in schizophrenia, despite the overall enhancement of 40 Hz ASSR total power and phase-locking values relative to the corresponding GBR values.

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Section: Discussionmentioning

confidence: 99%

Converging evidence for gamma synchrony deficits in schizophrenia

Roach

Ford

Hoffman

et al. 2013

Supplements to Clinical Neurophysiology

View full text Add to dashboard Cite

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“…An important degree of freedom is the EEG recording condition: one may record EEG: (i) while the subject is at rest (with open or closed eyes); (ii) while the subject performs working-memory or other tasks; (iii) while the subject is being stimulated with auditory, visual, tactile, or other signals (see, e.g., [11][12][13][14][15]). Depending on the recording situation, EEG signals may be more or less discriminative for MCI and AD; a systematic exploration of different recordings conditions with the aim of diagnosing MCI and AD needs to be conducted.…”

Section: Discussionmentioning

confidence: 99%

On the Early Diagnosis of Alzheimer’s Disease from EEG Signals: A Mini-Review

Dauwels

Vialatte

Cichocki

2010

Advances in Cognitive Neurodynamics (II)

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“…The aim of [194] was to investigate whether steady state EPs are relevant for diagnosing AD. More precisely, 40Hz auditory steady state EPs were recorded in MCI and AD patients, and healthy control subjects.…”

Section: Auditory Ep and Erp In MCI And Admentioning

confidence: 99%

Diagnosis of Alzheimers Disease from EEG Signals: Where Are We Standing?

Dauwels¹,

Vialatte²,

Cichocki³

2010

CAR

390

188

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This paper reviews recent progress in the diagnosis of Alzheimer's disease (AD) from electroencephalograms (EEG). Three major effects of AD on EEG have been observed: slowing of the EEG, reduced complexity of the EEG signals, and perturbations in EEG synchrony. In recent years, a variety of sophisticated computational approaches has been proposed to detect those subtle perturbations in the EEG of AD patients. The paper first describes methods that try to detect slowing of the EEG. Next the paper deals with several measures for EEG complexity, and explains how those measures have been used to study fluctuations in EEG complexity in AD patients. Then various measures of EEG synchrony are considered in the context of AD diagnosis.Also the issue of EEG pre-processing is briefly addressed. Before one can analyze EEG, it is necessary to remove artifacts due to for example head and eye movement or interference from electronic equipment. Pre-processing of EEG has in recent years received much attention. In this paper, several state-of-the-art pre-processing techniques are outlined, for example, based on blind source separation and other non-linear filtering paradigms.In addition, the paper outlines opportunities and limitations of computational approaches for diagnosing AD based on EEG. At last, future challenges and open problems are discussed.

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40-Hz steady state response in Alzheimer's disease and mild cognitive impairment

Cited by 69 publications

References 39 publications

Converging evidence for gamma synchrony deficits in schizophrenia

Converging evidence for gamma synchrony deficits in schizophrenia

On the Early Diagnosis of Alzheimer’s Disease from EEG Signals: A Mini-Review

Diagnosis of Alzheimers Disease from EEG Signals: Where Are We Standing?

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