EEG and slow cortical potentials in anticipation of mental tasks with different hemispheric involvement

@article{Birbaumer1981EEGAS,
  title={EEG and slow cortical potentials in anticipation of mental tasks with different hemispheric involvement},
  author={Niels Birbaumer and Thomas Elbert and Werner Lutzenberger and Brigitte Rockstroh and J. Schward},
  journal={Biological Psychology},
  year={1981},
  volume={13},
  pages={251-260}
}
Mental arithmetic is supposed to be processed by the left hemisphere, while pattern matching has been considered to be processed by the right hemisphere. These different mental tasks were presented to 16 right-handed male subjects. As a variable task difficulty was varied for the two task categories. The task presentations were preceded by 6 sec warning stimuli which indicated the level of difficulty of the task. EEG and slow cortical potentials (SCPs) were recorded from temporal and precentral… Expand

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References

SHOWING 1-10 OF 25 REFERENCES
Asymmetries in the CNV over left and right hemispheres while subjects await numeric information.
TLDR
The contingent negative variation was recorded from frontal and central electrodes in one left-handed and 12 right-handed subjects and elicited CNVs whose amplitude was greater over the hemisphere contralateral to the preferred hand. Expand
Lateral specialization of cognitive mode: an EEG study.
TLDR
EEG asymmetry is distinguished between these two cognitive modes as they occur in normal subjects, using simple scalp recording, and the ratio (right over left) was greater in the verbal tasks than in the spatial tasks. Expand
EEG asymmetry during covert mental activity.
TLDR
Zero-order and semipartial correlations between integrated EEG measures and subjective ratings showed that verbalization and concentration were systematically related to EEG asymmetry, suggesting that verbal processes may be a more important influence on temporoparietal EEG asymmetric than are visual imagery processes, at least during purely covert tasks. Expand
Cerebral processing of spatial and verbal-analytic tasks: An EEG study
TLDR
Task related alpha power ratio differences were observed, supporting the hypothesis that hemispheric processing is a function of the task processing demands and not just related to the perceptual requirements. Expand
Differential right hemisphere involvement in two reading tasks.
Verbal tasks are typically assumed to be processed by the left cerebral hemisphere, but the right hemisphere may have some role in language. EEG alpha was recorded from homologous central andExpand
Cerebral dominance and lateral differences in perception and memory.
TLDR
This finding, in conjunction with the well established right visual field superiority for the perception of verbal material, strongly supports the hypothesis that asymmetry in human perceptual performance reflects hemispheric asymmetry of function rather than peripheral factors. Expand
Asymmetry in evoked potentials as an index of lateralized cognitive processes: Relation to EEG alpha asymmetry
TLDR
Both the EEG and evoked potential asymmetry measures reflected the hemispheric specialization for these cognitive tasks and paralleled the task-dependent asymmetry of the EEG alpha power. Expand
Effects of task difficulty on EEG measures of cerebral engagement
TLDR
EEGs were recorded while subjects constructed 14 block designs of graded complexity, and also while reading and writing, and there were important differences between subjects: some showed significant increases in alpha poweronly on the left, some only on the right, some bilateral. Expand
EEG asymmetry as a function of occupation, task, and task difficulty
TLDR
Nine male artists and eight male engineers were tested for asymmetry of occipital alpha as a function of occupation, lateral speicificity of task, and difficulty of the task, finding no difference on the basis of occupation or difficulty. Expand
Laterality effects for simple and complex geometrical figures, and nonsense patterns
TLDR
Three groups of normal, right-handed subjects were trained to give same-different responses to pairs of stimuli presented simultaneously to the right or the left side of a fixation point, showing differences in performance for the halves of the visual field. Expand
...
1
2
3
...