Relative study of event-related potentials elicited by calculating and number recognizing
- VernacularTitle:认数及计算事件相关电位的相关性研究
- Author:
Jinzhong HUANG
;
Xuan DONG
;
Heqing ZHAO
- Publication Type:Journal Article
- Keywords:
number recognizing;
calculating;
ERPs;
EEG
- From:
Journal of Clinical Neurology
1997;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the relation of event-related potentials (ERPs), which are evoked by calculating and number recognizing stimuli.Methods We examined 26 healthy undergraduate students with double-digit (Arabic numbers) and single-digit modify a prescription problems. While the stimulus information was presented, electroencephalogram (EEG) was recorded simultaneously. ERPs were extracted from EEG data, and then the feature and source of ERPs were analyzed.Results Both calculation and number recognizing induced positive and negative components of ERPs with similar wave form and different latency. The latency of ERPs was conspicuously shorter elicited by number recognizing than by calculating. Grand mean mapping showed the highest amplitudes of ERPs were presented in parietal lobe elicited both by calculating and number recognizing.Conclusion The processing of calculating is more complicated than number recognizing. Calculating and number recognizing may have different electrophysiological background, and they belong to diverse processing course in the brain. Parietal lobe is the functional domains of them.
