米森的解释是否令人满意还存在争议，一些作者最近强调了其他因素的重要性。
Whether Mithen's explanation is satisfactory is open to contention, and some authors have recently emphasized the importance of other factors.
他们继续控制各种因素，如浓度和使用次数，妄图在动物和人类之间做比较，而这种可比性是不存在的。
They continue to manipulate various factors, such as concentration and frequency, vainly trying to draw a parallel line between the animals and humans when there isn't one.
这种不同测试方式之间存在的重叠或关联现象，表明它们在测出某种特定认知能力的同时，也测出了某种带普遍性的智力因素。
This overlap, or intercorrelation, suggests that all such tests measure some global element of intellectual ability as well as specific cognitive skills.
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