Neuronatin (Nnat) is a recently cloned brain - specific gene that is selectively expressed during brain development.

是最近克隆的脑特异表达的新基因，在大脑发育过程中被选择性地剪接。

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The Bracken School Readiness Assessment the test being replaced by NNAT had trouble producing diverse classrooms in the gifted program.

WSJ: Big Change in Gifted and Talented Testing

The NNAT is significantly harder than the tests city has previously used, with some questions confusing even for adults, tutoring companies reported.

WSJ: Big Change in Gifted and Talented Testing

As my colleague Sophia Hollander reported earlier this month, the new test will weigh heavily on the Naglieri Nonverbal Ability Test (NNAT).

WSJ: Conflicted Over Gifted: NYC's Gifted and Talented Test Changes