In other words it suggests penalties trump rewards. It seems to work that way with addictions too:  <a href="http:&#x2F;&#x2F;medcitynews.com&#x2F;2015&#x2F;05&#x2F;to-quit-smoking-turns-out-penalties-work-better-than-reward-incentives&#x2F;" rel="nofollow">http:&#x2F;&#x2F;medcitynews.com&#x2F;2015&#x2F;05&#x2F;to-quit-smoking-turns-out-pen...</a>.<p>That is to say: I suspect the &quot;penalty&quot; of getting &quot;killed&quot; in a humiliating fashion thus thwarting a goal is more of a motivation than the reward of hearing a voice say, &quot;good job for memorizing that numerical pattern.&quot;