Task-related eeg asymmetries: A comparison of alpha blocking and beta enhancement
- 1 January 1986
- journal article
- research article
- Published by Taylor & Francis in International Journal of Neuroscience
- Vol. 30 (1-2) , 81-85
- https://doi.org/10.3109/00207458608985658
Abstract
Alpha and beta content of spectrally analyzed EEG were used to assess differential hemispheric engagement during two linguistic tasks (semantic and phonetic) and one acoustic task involving detection of target items embeddded within the same stimulus series. Beta content of the EEG increased reliably in the left hemisphere during the linguistic tasks, whereas the expected attenuation or blocking of alpha did not occur reliably. These data suggest that left hemisphere beta enhancement rather than alpha blocking is a more efficient index of differential hemispheric engagement during language processing.Keywords
This publication has 14 references indexed in Scilit:
- Laterality of 40 Hz EEG and EMG During Cognitive PerformancePsychophysiology, 1984
- EEG Asymmetry During Covert Mental ActivityPsychophysiology, 1980
- Cerebral excitation profiles in language processing: The photic probe paradigmBrain and Language, 1980
- Lateral Specialization of Cognitive Mode: II. EEG Frequency AnalysisPsychophysiology, 1974
- Asymmetries in the electroencephalogram associated with cerebral dominanceElectroencephalography and Clinical Neurophysiology, 1974
- Lateral Specialization of Cognitive Mode: An EEG StudyPsychophysiology, 1972
- Differences in bilateral alpha activity as a function of experimental task, with a note on lateral eye movements and hypnotizabilityNeuropsychologia, 1971
- Mental arithmetic and blocking of the occipital alpha rhythmElectroencephalography and Clinical Neurophysiology, 1964
- A quantitative survey of kappa and alpha EEG activityElectroencephalography and Clinical Neurophysiology, 1962
- THE BERGER RHYTHM: POTENTIAL CHANGES FROM THE OCCIPITAL LOBES IN MANBrain, 1934