How Facebook and Campbell Soup Are Trying to Read Your Mind

Facebook Inc. this spring commissioned a San Francisco company called SalesBrain to gauge how consumers responded to ads viewed on a smartphone versus a TV screen. Neural researchers used various sensors to measure perspiration, heart rate, eye movement, and brain activity of the 70 participants. Their conclusion: People get more out of information on a mobile phone than a TV, and watching television forces the brain to work harder to combat distractions.

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