Close but no cigar, the saying goes. But new research shows that when it comes to gambling, the human brain seems to take a very different approach. In our head, near misses, such as a lottery ticket just one number away from the jackpot, are interpreted as wins.
Using functional MRI, Luke Clark of the University of Cambridge and his colleagues looked at the brains of 15 volunteers who were playing a computerized slot machine. Unsurprisingly, wins activated the players’ reward system, whereas complete misses did not. When the wheel stopped just one position from the pay line, however, the reward system of volunteers’ brains got excited the same way it did after a win—there was much activity in the striatum and the insula, areas involved in reinforcing behavior with positive feedback.
This type of reinforcement makes sense in behaviors that involve actual skill, such as target shooting, because a sense of reward provides encouragement to keep practicing, Clark says. “A near miss in a game of chance doesn’t mean that you are getting better,” he notes, yet it seems that the brain mistakenly activates the same type of reinforcement learning system in these situations.
The findings expose the underpinnings of gambling addiction, according to Clark. Even though all volunteers were nongamblers, those whose brain showed a greater response in the scanner also reported feeling more desire to continue trying after near misses. Excessive recruitment of these reward areas, therefore, may be a risk factor for compulsive gambling, Clark says.
Note: This article was originally printed with the title, "Close Call Counts."
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Add CommentThis, then, is another form of the partial reinforcement effect. In addition to the interval and ratio dimensions of reinforcement contingencies, there is a success gradient. The world-class pole vaulter who falls short of a world record by one inch is more likely to make another attempt with greater effort than if he had missed by a foot and a gambler who comes within one card of filling an inside straight is more likely to stay at the table as long as he has the chips.
Reply | Report Abuse | Link to thisThis is good news if people learn to get positive feedback when they come close. It has implications for learning in general and in school - but it rests on the feedback students get from the instructor/teacher/professor - is it a failure or what part of an answer is close, though this time, no cigar. Some animals are trained with success gradients - when they get close to the behavior, they get a reward and keep moving forward to the desired behavior. Target practice is a visual confirmation of how close you got. Students need to be told how close they got rather than the answer is right or wrong - even when it's partly right but lacking something or the answer has information that does not fit.
Reply | Report Abuse | Link to thisAcetylcholine in the brain is the key. The chemical is replaced by vegetable lecithin and when ingested disallows one to get addicted. Pretty simple.
Reply | Report Abuse | Link to thisJust to be aware of these kinds of reinforcing effects is important in itself - to note to oneself if this is a reasonable response.
Reply | Report Abuse | Link to thisIn a situation though where there is a lack of nutrients to offset the **addictive** nature of the experience.
Reply | Report Abuse | Link to thisOne can argue it to be a normal part of man / woman BUT it is obvious to us this behavior is abnormal and therefore we have to address the reason WHY this BECOMES abnormal?
If the nutrients are inaccessible TO the body TO offset this addictive effect then the addictive effect will happen.
As evidenced as I say by the CURE of the mouse FROM the **addictive** nature of heroin or cocaine two of the most powerful addictive substances in existance?
If the protocol works there it should work normally?
"Acetylcholine enhancement in the nucleus accumbens
prevents addictive behaviors of cocaine and morphine "