"index"
"monkey_age" 
"brain_region"
"stimuli_loc"
"cue_rate"
"delay_rate"
"cue_isi_min"
"cue_isi_first_quartile"
"cue_isi_mean"
"cue_isi_thrid_quartile"
"cue_isi_max"
"cue_isi_std"
"delay_isi_min"
"delay_isi_first_quartile"
"delay_isi_mean"
"delay_isi_thrid_quartile"
"delay_isi_max"
"delay_isi_std"
"cue_ts_{i}"
"delay_ts_{i}"
"cue_seasonal_{i}"
"cue_trend_{i}"
"cue_noise_{i}"
"delay_seasonal_{i}"
"delay_trend_{i}"
"delay_noise_{i}"