Research Article

Objective and Subjective Evaluation of Online Error Correction during P300-Based Spelling

Figure 10

Grand average EEG event-related dynamics for group with a high specificity in solid line ( ) and group with a low specificity in dashed line ( ). (a) Responses to bad (grey) and good feedbacks (black) in channel Cz. (b) Difference of bad and good feedback responses in channel Cz. (c) Difference of target and non-target responses in channel P7.
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