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首页> 外文期刊>Biological psychiatry >Hypersensitivity to reward in problem gamblers.
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Hypersensitivity to reward in problem gamblers.

机译：对有问题的赌徒进行奖励的超敏性。

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BACKGROUND: Recent research has begun to examine the neurophysiologic basis of pathological gambling. However, direct evidence of a behavioral deficit and an accompanying neurofunctional deviation in a realistic gambling context such as Black Jack has not yet been reported. METHODS: Electroencephalogram was recorded while 20 problem gamblers and 21 control participants played a computerized version of Black Jack. Participants were asked to decide at point scores between 11 and 21 whether they wanted to take another card ("hit") to arrive closer to 21 than the opponent (simulated by computer) or not to take another card ("sit") to avoid going over 21 ("bust"). RESULTS: At a critical point score of 16, problem gamblers decided more often to hit despite losses due to a bust on the preceding trial, whereas control participants decided more often to sit under these conditions. Furthermore, problem gamblers showed more reward-related positive amplitudes in the event-related brain potential than control participants after successful hit decisions at 16. CONCLUSIONS: Here we provide experimental evidence for high-risk taking behavior in gamblers and its correlate in event-related brain potentials. Our results suggest that high-risk-taking behavior in problem gamblers is associated with an increased reward-related neural response to infrequent successes of this behavior.
机译：背景：最近的研究已经开始研究病理性赌博的神经生理基础。然而，尚无关于在真实赌博环境中（例如《黑杰克》）的行为缺陷和伴随的神经功能偏差的直接证据。方法：记录脑电图，同时有20名有问题的赌徒和21名对照参与者玩了计算机版的《黑杰克》。要求参与者在11到21之间的得分上决定是否要拿另一张牌（“命中”）比对手（由计算机模拟）更接近21位，还是不想拿另一张牌（“坐下”）以避免超过21（“失败”）。结果：在关键点得分为16的情况下，尽管由于先前试验的失败而造成损失，但问题赌徒还是决定更频繁地击打，而对照组参与者则决定在这些情况下经常坐下。此外，问题赌徒在16点成功做出击球决策后，与事件参与者相比，与事件相关的大脑潜能表现出更多的与奖励相关的正振幅。结论：在此，我们提供了实验证据，证明赌徒的高风险采取行为及其与事件相关的相关性脑潜能。我们的结果表明，问题赌徒的高风险行为与对这种行为的罕见成功的奖励相关神经反应的增加有关。

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