"매 brain at work — 매 neural signals 의 measure, 매 system 의 adapt". 매 2003 Parasuraman 의 coin, 매 fNIRS/EEG/eye-tracking 의 mature. 매 2026 의 closed-loop adaptive systems (cockpits, surgery, AR work) 의 deploy.
매 핵심
매 measurement modalities
EEG: 매 ms-level temporal resolution. 매 cognitive load 의 alpha-suppression / theta-Fz 의 marker.
fNIRS: 매 cortex hemodynamics. 매 portable, motion-tolerant — 매 real-world 의 work.
Eye tracking: 매 fixation duration, pupil dilation — 매 mental effort 의 proxy.
HRV / GSR: 매 ANS arousal — 매 stress / engagement.
매 cognitive states 의 detect
Workload: 매 over-load → 매 error spike. 매 under-load → 매 vigilance drop.
Vigilance / fatigue: 매 P300 amplitude decline + theta increase.
Engagement / flow: 매 mid-frontal theta + alpha asymmetry.
매 응용
매 adaptive cockpit (Airbus, Honeywell): 매 pilot workload 의 high → 매 secondary task 의 defer.
매 surgical training: 매 trainee fNIRS prefrontal 의 over-activation = novice marker.
매 driver-state monitoring (Tesla v13, Mercedes Drive Pilot): 매 EEG drowsiness 의 detect.
💻 패턴
EEG workload index (theta/alpha ratio)
importmne,numpyasnpraw=mne.io.read_raw_brainvision('subj.vhdr',preload=True)raw.filter(1,40)psd=raw.compute_psd(fmin=4,fmax=12,picks=['Fz','Pz'])freqs=psd.freqspower=psd.get_data()# (channels, freqs)theta=power[:,(freqs>=4)&(freqs<8)].mean(axis=1)alpha=power[:,(freqs>=8)&(freqs<13)].mean(axis=1)workload_index=theta/alpha# higher = more load
fNIRS prefrontal activation (MNE-NIRS)
frommne_nirs.experimental_designimportmake_first_level_design_matrixfrommne_nirs.statisticsimportrun_glmraw_haemo=mne.preprocessing.nirs.beer_lambert_law(raw_od,ppf=0.1)design=make_first_level_design_matrix(raw_haemo,drift_model='cosine')glm=run_glm(raw_haemo,design)# beta for HbO in PFC channels = task-evoked activationpfc_activation=glm.to_dataframe().query("ch_name.str.contains('S1_D1') & Chroma=='hbo'")
언제: 매 study design review, 매 GLM script generation, 매 multimodal-feature engineering, 매 paper synthesis.
언제 X: 매 raw artifact rejection, 매 individual-subject calibration — 매 expert review 의 require.
❌ 안티패턴
Single-modality reliance: 매 EEG-only 의 motion artifact 에 fragile. 매 fusion 의 require.
No baseline: 매 absolute power 의 between-subject 의 noisy. 매 within-subject z-score 의 use.
Open-loop dashboard: 매 measure-but-not-act → 매 value 의 zero. 매 closed-loop 의 design.
No personalization: 매 group-mean threshold 의 50% individuals 에 wrong.