Table 1. Stimulus characteristics

Table 1. Stimulus characteristics Task type

Stimulus Rate of occurrence Circle task Square task

Distractor 5% 1.36° 1.53°

Target 5% 1.38° 1.21°

Standard 90% 1.53° 1.36°

Rate of occurrence, shape, and visual angle of stimuli for the visual three stimulusoddball tasks. In the experiment,

stimuli were presented in blue.

Positions of the regional sources and fMRI activation maps. Positions of the RSs resulting from the seeding procedure and group statistical maps of blood oxygenation level-dependent signal increase for the target and distractor conditions compared with baseline (standard condition) at F (1,18510) = 31; p < 0.001 (corrected), superimposed on a surface reconstruction of the MNI template brain.