Advertising based on the viewer’s emotions is rapidly becoming a reality. Engineers have already used sensors to detect emotional states such as inattentiveness and programmed an automobile to slow down when it senses that emotional state. Samsung has also already patented technologies for sharing emotions over social networks. Using sensors in smart phones and similar digital devices advertisers will soon be able to sense a viewer’s emotional state and when they are most vulnerable to an ad. Like it or not, emotion-based advertising lies in the near future.

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Emotion-detecting advertising is coming. Beware. – Slate Magazine