Event-related desynchronization/synchronization during an auditory-verbal working memory task in mild Parkinson's disease.
- Authors
- Ellfolk, Ulla; Karrasch, Mira; Laine, Matti; Pesonen, Mirka; Krause, Christina M
- Year
- 2006
- Journal
- Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
- PMID
- 16807091
- DOI
- 10.1016/j.clinph.2006.05.004
OBJECTIVE: Event-related desynchronization (ERD) and synchronization (ERS) were studied during an auditory-verbal working memory task in patients suffering from Parkinson's disease (PD). METHODS: PD patients (n=7, mean age 59) at a mild stage of the disease volunteered in the study. A group of healthy subjects (n=10, mean age 61) served as control group. ERD and ERS of the 1-25 Hz EEG frequencies were studied using wavelet transforms during memory encoding and retrieval. RESULTS: Both groups performed equally well on the memory task. Statistically significant differences in ERD/ERS responses were observed in posterior electrodes during encoding of the memory set due to the fact that alpha ( approximately 10-15 Hz) ERS was elicited in the controls, but not in the PD group. In broad frequency bands ( approximately 6-25 Hz) ERD responses were observed in both groups during memory retrieval. A pre-stimulus alpha ERS seen in the control group was absent in the PD group. CONCLUSIONS: The results of this preliminary study indicate that Parkinson's disease might affect brain oscillatory responses in the alpha frequency range in the encoding phase of auditory-verbal working memory. SIGNIFICANCE: The ERD/ERS patterns may reflect neurophysiological alterations in the processes underlying working memory deficits in PD.
No figures extracted from this document.
No chunks — full text not yet ingested.
No entities extracted from this document yet.
No uploaded files.
No citations found.
In this knowledge base
| Title | Year | PMID |
|---|---|---|
| Advances in Electrophysiological Research. | 2015 | 26259089 |
External
| Title | Authors | Journal | Year | Link |
|---|---|---|---|---|
| Transcranial Ultrasound Stimulation Improves Memory Performance of Parkinsonian Mice. | Zhao Z et al. | — | 2024 | → |
| Abnormalities in auditory and visual cognitive processes are differentiated with theta responses in patients with Parkinson's disease with and without dementia. | Güntekin B et al. | — | 2020 | → |
| Auditory Dysfunction in Parkinson's Disease. | Jafari Z et al. | — | 2020 | → |
| Attenuated NoGo-related beta desynchronisation and synchronisation in Parkinson's disease revealed by magnetoencephalographic recording. | Wu HM et al. | — | 2019 | → |
| The difference of mild cognitive impairment in Parkinson's disease from amnestic mild cognitive impairment: Deeper power decrement and no phase-locking in visual event-related responses. | Yener GG et al. | — | 2019 | → |
| Cognitive Impairment in Parkinson's Disease Is Reflected with Gradual Decrease of EEG Delta Responses during Auditory Discrimination. | Güntekin B et al. | — | 2018 | → |
| Review of evoked and event-related delta responses in the human brain. | Güntekin B et al. | — | 2016 | → |
| Advances in Electrophysiological Research. | Kamarajan C et al. | — | 2015 | → |
| Dynamic cortical involvement in implicit anticipation during statistical learning. | Altamura M et al. | — | 2014 | → |
| Theory of Mind in normal ageing and neurodegenerative pathologies. | Kemp J et al. | — | 2012 | → |
| Theory of Mind in Parkinson's disease. | Poletti M et al. | — | 2011 | → |
| Decoding emotional prosody in Parkinson's disease and its potential neuropsychological basis. | Mitchell RL et al. | — | 2009 | → |
| Event-related desynchronization/synchronization during discrimination task conditions in patients with Parkinson's disease. | Dushanova J et al. | — | 2009 | → |
| Brain oscillatory EEG event-related desynchronization (ERD) and -sychronization (ERS) responses during an auditory memory task are altered in children with epilepsy. | Krause CM et al. | — | 2008 | → |
| Neuromagnetic functional coupling during dichotic listening of speech sounds. | Brancucci A et al. | — | 2008 | → |
| Cognition- and memory-related ERD/ERS responses in the auditory stimulus modality. | Krause CM | — | 2006 | → |