Watching television: a previously unrecognized powerful trigger of λ waves.


Autoria(s): Alvarez V.; Maeder-Ingvar M.; Rossetti A.O.
Data(s)

2011

Resumo

OBJECTIVE: To assess whether lambda waves are elicited by watching television (TV) and their association with demographical and EEG features. METHODS: We retrospectively compared lambda wave occurrence in prolonged EEG monitorings of outpatients who were allowed to watch TV and in standard EEGs recorded in TV-free rooms. All EEGs were interpreted by the same two electroencephalographers. RESULTS: Of 2,072 standard EEG reports, 36 (1.7 %) mentioned lambda waves versus 46 (32.2%) of 143 prolonged EEG monitoring reports (P < 0.001). Multivariable comparison of prolonged EEG monitorings and standard EEGs disclosed that recordings performed in rooms with a TV (odds ratio, 20.6; 95% confidence interval, 4.8-88.0) and normal EEGs (odds ratio, 3.03; 95% confidence interval, 1.5-6.25) were independently associated with lambda waves. In the prolonged EEG monitoring group, all recordings with lambda waves also had positive occipital sharp transients of sleep. CONCLUSIONS: Watching TV likely represents a powerful and previously unrecognized stimulus for lambda waves. Furthermore, this study confirms the benign nature of this EEG variant and its strong association with positive occipital sharp transients of sleep.

Identificador

https://serval.unil.ch/?id=serval:BIB_3771A63BFD73

isbn:1537-1603 (Electronic)

pmid:21811131

doi:10.1097/WNP.0b013e3182273250

isiid:000293448100014

http://my.unil.ch/serval/document/BIB_3771A63BFD73.pdf

http://nbn-resolving.org/urn/resolver.pl?urn=urn:nbn:ch:serval-BIB_3771A63BFD738

Idioma(s)

en

Direitos

info:eu-repo/semantics/openAccess

Fonte

Journal of Clinical Neurophysiology, vol. 28, no. 4, pp. 400-403

Palavras-Chave #Adolescent; Adult; Brain Waves/physiology; Electroencephalography/methods; Female; Humans; Male; Middle Aged; Photic Stimulation/methods; Precipitating Factors; Retrospective Studies; Television; Young Adult
Tipo

info:eu-repo/semantics/article

article