simplify this in a sentence or two:In the study, infants were shown five types of blocks: Three novel blocks with new images from a category. Two repeat blocks with the same image repeated. Scenes were only shown in novel blocks, while human and sheep faces were shown in both novel and repeat blocks. The blocks were arranged using a Latin-square design, and participants could see up to 25 blocks. In each session, the goal was to collect data from two blocks of each type (10 blocks total, about 5.7 minutes of data). More data was collected if possible. On average, infants had 7.5 minutes (13.3 blocks) of usable data before lockdown and 7.0 minutes (13.0 blocks) after lockdown, excluding data affected by motion. Although this is less data than typical adult fMRI studies, it compares well with other awake infant fMRI studies, which range from 2.5 to 6.7 minutes of data