Complex sentence: The P3b event related potential, which peak correspond to the main P300 peak, would be linked to attention and memory mecanisms and its amplitude on the scalp is higher over temporal and parietal regions.
Split into simpler sentences: The P3b event related potential, which peak correspond to the main P300 peak. P3b would be linked to attention and memory mechanisms and its amplitude on the scalp is higher over temporal and parietal regions.