Appendix 4. Common Artifacts During EEG Recording
Physiological artifacts may include cardiac, pulse, respiratory, sweat, glossokinetic, eye movement (blink, lateral rectus spikes from lateral eye movement), and muscle and movement artifacts. Examples of each type are shown in the figures below.
Tongue as a Wire? Glossokinetic Artifact and Insights From Intracranial EEG
2022年9月1日 · Background: Glossokinetic artifact (GKA) is a well-known scalp EEG artifact characterized by deflections within the delta to low-theta frequency bands and dynamic polarity typically attributed to the direction of tongue movement. This study aims to investigate intracranial EEG correlations of scalp-GKA.
Glossokinetic Potentials: Insights from intracranial EEG (P4.5-014)
Glossokinetic-artifact (GKA) is a long known scalp-EEG artifact. It is seen as a broad potential field maximum in the frontal electrodes and produces synchronous intermittent rhythmic activity in the range of slow delta to low theta.
Normal variants and artifacts: Importance in EEG interpretation
Another special type of muscle artifact is produced by the tongue muscles (glossokinetic artifact). This is a slow frequency artifact generated by the bioelectric dipole of the tongue with its tip being negatively charged compared with its base.
EMG artifact often occurs when the patient is tense or anxious and has difficulty relaxing or holding still. In the ICU this type of artifact is commonly caused by the patient biting down on the endotracheal tube which connects the patient
Journal of Clinical Neurophysiology - LWW
Glossokinetic artifact (GKA) is a well-known scalp EEG artifact characterized by deflections within the delta to low-theta frequency bands and dynamic polarity typically attributed to the direction of tongue movement. This study aims to investigate intracranial EEG correlations of scalp-GKA.
Coming soon: Tongue as a Wire? Glossokinetic Artifact and …
2021年2月8日 · Background: Glossokinetic artifact (GKA) is a well-known scalp EEG artifact characterized by deflections within the delta to low-theta frequency bands and dynamic polarity typically attributed to the direction of tongue movement.
Tongue as a Wire? Glossokinetic Artifact and Insights From Intracranial EEG
2021年2月15日 · Abstract Background: Glossokinetic artifact (GKA) is a well-known scalp EEG artifact characterized by deflections within the delta to low-theta frequency bands and dynamic polarity...
Glossokinetic Potentials: Insights from intracranial EEG
2018年10月9日 · Background: Glossokinetic-artifact (GKA) is a long known scalp-EEG artifact. It is seen as a broad potential field maximum in the frontal electrodes and produces syn- chronous intermittent...
Tongue as a Wire? Glossokinetic Artifact and Insights From I ... - LWW
Glossokinetic artifact (GKA) is a well-known scalp EEG artifact characterized by deflections within the delta to low-theta frequency bands and dynamic polarity typically attributed to the direction of tongue movement. This study aims to investigate intracranial EEG correlations of scalp-GKA.
Artifacts - SpringerLink
2011年12月26日 · Glossokinetic (tongue) movements may cause significant artifacts in the EEG. The tongue, like the eye, is a bioelectric dipole, with the root of the tongue positive relative to the tip . These movements can be seen in patients in oral dyskinesias, such as palatal myoclonus, and do not resolve in sleep (Figs. 5.17–5.19).
Tongue-Movement Artifacts in the Electroencephalogram
Westmoreland B.F., Espinosa R.E., and Klass D.W., Significant prosopo-glossopharyngeal movements affecting the electroencephalogram, Amer. J. EEG Technol., 13:59–70, 1973.
EEG Fun Facts: Hypoglossal Artifact | May 12, 2023
Glossokinetic potentials or Hypoglossal artifacts are caused by movement of the tongue. The artifact appears as slower, diffuse delta frequency activity, that is mostly synchronized and symmetrical with a frontal dominance.
Figure 85. [Glossokinetic potentials from tongue movement ...
Glossokinetic potentials from tongue movement, reproducible by having the patient say “la, la.” From: Appendix 4. Common Artifacts During EEG Recording. Copyright ©2016 by American Epilepsy Society.
A Tongue-Machine Interface: Detection of Tongue Positions by ...
Artifacts are electrical activities that are detected along the scalp by an electroencephalography (EEG) but that originate from non-cerebral origin, which often need to be eliminated before further processing of EEG signals. Glossokinetic potentials are artifacts related to tongue movements.
Chapter 4 - Recognizing Artifacts and Medication Effects
2024年2月22日 · The main purpose of recognizing artifacts is to avoid mistaking them from seizures. They may originate from other body organs (internal) or environmental sources (external). Common internal artifacts include ocular (eye movement), glossokinetic (tongue movement), cardiac (ECG), myogenic (muscle activity), or sweat-sway artifact (skin).
Developmental EEG hallmark or biological artifact? Glossokinetic ...
2019年11月1日 · Glossokinetic artifact can easily be mistaken for anterior slow dysrhythmia. Here, we describe the differences between the two patterns for electroencephalographers and neurologists interpreting neonatal EEGs.
Glossokinetic Potentials for a Tongue-Machine Interface: How …
2016年6月9日 · GKP has been considered an electroencephalography (EEG) artifact that is removed to minimize the interference with signals from a cerebral region for successful EEG analysis. In this article, we emphasize a different side of GKP where we analyze its spatial patterns to trace tongue movements developing tongue-machine interfaces.
EEG Artifacts: Overview, Physiologic Artifacts, Extraphysiologic Artifacts
2019年10月9日 · Glossokinetic artifact. In addition to muscle activity, the tongue (like the eyeball) functions as a dipole, with the tip negative with respect to the base. In this case, the tip of the tongue...
Tongue as a Wire? Glossokinetic Artifact and Insights From Intrac ...
Glossokinetic artifact (GKA) is a well-known scalp EEG artifact characterized by deflections within the delta to low-theta frequency bands and dynamic polarity typically attributed to the direction of tongue movement. This study aims to investigate intracranial EEG correlations of scalp-GKA.