def get_train_test_data(all_fc_data, train_subs, test_subs, behav_data, behav):
    """
    Extracts requested FC and behavioral data for a list of train_subs and test_subs
    """

    train_vcts = all_fc_data.loc[train_subs, :]
    test_vcts = all_fc_data.loc[test_subs, :]

    train_behav = behav_data.loc[train_subs, behav]

    return (train_vcts, train_behav, test_vcts)