Exploiting the Neuroscience of Internet Addiction

Much of what we do online releases dopamine into the brain's pleasure centers, resulting in obsessive pleasure-seeking behavior. Technology companies face the option to exploit our addictions for profit.

RTR328RKMAIN.jpgReuters/Beck Diefenbach

The leaders of Internet companies face an interesting, if also morally questionable, imperative: either they hijack neuroscience to gain market share and make large profits, or they let competitors do that and run away with the market.

In the Industrial Age, Thomas Edison famously said, "I find out what the world needs. Then I go ahead and try to invent." In the Internet Age, more and more companies live by the mantra "create an obsession, then exploit it." Gaming companies talk openly about creating a "compulsion loop," which works roughly as follows: the player plays the game; the player achieves the goal; the player is awarded new content; which causes the player to want to continue playing with the new content and re-enter the loop.

It's not quite that simple. Thanks to neuroscience, we're beginning to understand that achieving a goal or anticipating the reward of new content for completing a task can excite the neurons in the ventral tegmental area of the midbrain, which releases the neurotransmitter dopamine into the brain's pleasure centers. This in turn causes the experience to be perceived as pleasurable. As a result, some people can become obsessed with these pleasure-seeking experiences and engage in compulsive behavior such as a need to keep playing a game, constantly check email, or compulsively gamble online. A recent Newsweek cover story described some of the harmful effects of being trapped in the compulsion loop.

The release of dopamine forms the basis for nicotine, cocaine, and gambling addictions. The inhalation of nicotine triggers a small dopamine release, and a smoker quickly becomes addicted. Cocaine and heroin deliver bigger dopamine jolts, and are even more destructive.

In the past, companies used customer surveys, focus groups, interviews, and psychological tests to figure out how to make products more appealing to customers. In 1957, Vance Packard published The Hidden Persuaders, in which he identified eight hidden needs -- including a consumer's desire to love and be loved, or a yearning for power -- which advertisers could exploit to create demand for their products.

Packard, who questioned the morality of exploiting emotions in order to sell products, died in 1996. Were he alive today, he would surely be shocked to see how primitive the exploitation techniques he described now seem.

Today we can monitor the brain's response with NMR (nuclear magnetic resonance) imaging to more accurately measure what people are experiencing when they play online games, interact with smart devices, or gamble. Luke Clark, a neuroscientist at the University of Cambridge, used brain scans to determine that when gamblers felt they could exert control over a game's outcome -- for example, by throwing the dice harder, or pulling the lever on a slot machine with more force -- it increased their interest in playing. Also, such near misses as getting two out of three matching symbols on a slot machine stimulated the desire to continue to play. Other experiments have shown that optimizing a slot machine's frequency of near misses can extend gambling times by 30 percent. Neuroscientists have also found that it is the unpredictability of winning large rewards that stimulates the dopamine releases that compels gamblers to return.

In the 1990s, concern over obsessive-compulsive behavior associated with computer games and the Internet began to grow. Until roughly 2000, compulsive behavior remained a side effect -- not an intentional element of game design and other Internet applications. Application providers were simply supplying customers with services that made their products more appealing.

In the past, society has been able to put physical barriers in place to make it more difficult to satisfy unhealthy obsessions. Things are very different today.

But before long, people were referring to their BlackBerries as CrackBerries, and parents were beginning to worry about the number of hours their kids spent on video games. We now believe that the compulsion to continually check email, stock prices, and sporting scores on smartphones is driven in some cases by dopamine releases that occur in anticipation of receiving good news. Indeed, we have grown so addicted to our smartphones that we now experience "phantom smartphone buzzing," which tricks our brains into thinking our phone is vibrating when it isn't.

Presented by

Bill Davidow is an adviser to Mohr Davidow Ventures and the author of Overconnected: The Promise and Threat of the Internet.

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