Association Between Positive Occipital Sharp Transients of Sleep and Lambda Waves
| Autor: | Pat Trudeau, Selim R. Benbadis, Lucy Sullivan, Ushtar Amin |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Population Audiology Electroencephalography Lambda 050105 experimental psychology 03 medical and health sciences Young Adult 0302 clinical medicine Normal EEG Medicine Humans 0501 psychology and cognitive sciences Statistical analysis Association (psychology) education Child Yates's correction for continuity Aged Aged 80 and over education.field_of_study medicine.diagnostic_test business.industry 05 social sciences General Medicine Middle Aged Brain Waves Neurology Child Preschool Ambulatory Female Neurology (clinical) Occipital Lobe business Sleep 030217 neurology & neurosurgery |
| Zdroj: | Clinical EEG and neuroscience. 50(3) |
| ISSN: | 2169-5202 |
| Popis: | Positive occipital sharp transients of sleep (POSTS) and lambda waves have similar morphology and location. We studied a possible association between these 2 normal EEG patterns. We reviewed a series of consecutive unselected ambulatory EEGs during a 3-month period (October 16, 2017 to January 19, 2018) and identified records with POSTS and records with lambda waves. Statistical analysis was performed using a chi-square test. A total of 140 ambulatory EEGs were reviewed. Duration of EEGs ranged from 24 to 168 hours (mean 76 hours). The population was 34% males, with ages ranging from 3 to 93 years (mean 48 years). Of the 140 records, 30 were abnormal, including 20 with epileptiform abnormalities. A chi-square test for independence (with Yates continuity correction) indicated a significant association between POSTS and lambda waves, χ2(1, n = 140) = 69.208, p < .001, φ = 0.72. In addition, 100% of records with lambda waves had POSTS, and 72% of records with POSTS had lambda waves. There is a high association between lambda waves and POSTS. This suggests a strong similarity between the 2 waveforms, and possibly a common occipital generator. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|