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. 2010 Feb 24:6:15.
doi: 10.1186/1744-9081-6-15.

Event-related potential measures of the intending process: time course and related ERP components

Guangheng Dong  1 , Yanbo Hu, Hui Zhou
Affiliations

Event-related potential measures of the intending process: time course and related ERP components

Guangheng Dong et al. Behav Brain Funct. .

Abstract

Background: The intending process plays an important part to the successful completion of many daily activities. However, few researchers have paid attention to this issue. This study was set to investigate the time course and the electrophysiological evidence of the intending process with a cue-respond task.

Methods: Event-related potentials (ERPs) were recorded while participants were performing different cued conditions (deceptive, truthful, and watch-only). The time course of intending process was analyzed through the different effect of the cue stimuli.

Results: The P2 component, that appeared between 200 and 400 ms after the cue was onset, can be observed in the intended conditions (deceptive, truthful), but cannot be found in un-intended condition (watch-only). The mean amplitude in P2 between the truthful and deceptive conditions was consistent with previous studies. P2 was thought to be the reflection of the intention process.

Conclusions: The results suggested that the intention process happened 200 to 400 ms after the cue stimuli was onset, and the P2 in the posterior scalp during this period could be a specific component that related with the process of intention.

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Figures

Figure 1
Figure 1
Topographical maps. Topographical maps in deceptive, truthful and watch-only conditions at 150 ms, 300 ms, 450 ms after the cue stimuli onset.
Figure 2
Figure 2
Averaged ERP waveforms. Averaged ERP waveforms in truthful, deceptive, and watch-only conditions at Pz, POz, and Oz electrode sites.
See this image and copyright information in PMC

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