Video
summary
A team runs a controlled A/B biometric study with 60 participants watching 10 scripted videos and measures valence with facial EMG (and discusses skin conductance for arousal). Moving homepage images produce a clear positive EMG spike versus static images, and user‑story videos with simple, relatable pain‑points yield the strongest responses. Analysis needs baselines, smoothing and removal of nonresponders, and care about movement artifacts; negative EMG is ambiguous while positive signals give the most diagnostic value.
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chapters (19)
- 0:00Introduction
- 3:07Different Approaches
- 5:26Limitations
- 7:18Psychophysiological Measurement
- 10:10Physiological Arousal
- 11:47Biometrics
- 14:57Measuring delight
- 18:43Designing the study
- 23:08Impact of delightful content
- 29:18Best features
- 30:56What can we do
- 32:53Emotion is critical
- 33:50Delightful Content vs Test
- 34:58Biometric Levels
- 36:11Individual Highs and Lows
- 37:25Longitudinal Studies
- 37:58User Interaction
- 40:57External Validity
- 42:46Why Biometrics
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