simplify this for me:For the original purpose of the study, infants saw five block conditions: three were novel blocks, in which each image was a new identity from the given category, and two were repeat blocks, in which all eight images were the same identity. Scenes were only ever shown in novel blocks, while human and sheep faces were shown in both novel and repeat blocks. Blocks were counterbalanced using a Latinsquare design, with up to 25 blocks total available to participants. In a given session, we aimed to collect two blocks of each condition (10 total blocks = 5.7 min of data) but continued collecting more data if possible. Infants had 7.5 min (13.3 blocks) and 7.0 min (13.0 blocks) of usable data on average in the prelockdown and postlockdown groups, respectively, not including TRs excluded for motion. Although less data than typical adult fMRI studies, these numbers compare favorably with other awake infant fMRI studies (2.5-6.7 min; Biagi et al., 2015; Deen et al., 2017; Ellis et al., 2020, 2021a, 2021b, 2021c; Kosakowski et al., 2021)