Toffanin Paolo, Johnson Addie, de Jong Ritske, Martens Sander
University Medical Center Groningen, Groningen, Netherlands.
Behav Neurosci. 2007 Oct;121(5):854-70. doi: 10.1037/0735-7044.121.5.854.
A sentence verification task (SVT) was used to test whether differences in neural activation patterns that have been attributed to IQ may actually depend on differential strategy use between IQ groups. Electroencephalograms were recorded from 14 low (89 < IQ < 110) and 14 high (121 < IQ < 142) IQ individuals as they performed the SVT with either a spatial or verbal strategy. Event-related desynchronization in upper alpha (9.5-12.5 Hz) and theta (4-6 Hz) bands showed that different strategies evoked different activation patterns, but these patterns did not differ between groups. However, an IQ-related correlate was found in the preparation interval. Thus, although processing patterns during task performance seem to depend on the strategy used for task execution, preparation for task processing may depend on IQ.
句子验证任务（SVT）被用于测试，那些被认为与智商相关的神经激活模式差异，是否实际上取决于不同智商组之间策略使用的差异。在14名低智商（89 <智商< 110）和14名高智商（121 <智商< 142）个体执行采用空间或语言策略的SVT时，记录了他们的脑电图。上α波（9.5 - 12.5赫兹）和θ波（4 - 6赫兹）频段的事件相关去同步化表明，不同策略引发了不同的激活模式，但这些模式在不同组之间并无差异。然而，在准备间隔中发现了与智商相关的关联。因此，尽管任务执行过程中的处理模式似乎取决于用于任务执行的策略，但任务处理的准备可能取决于智商。
