Automaticity in motor sequence learning does not impair response inhibition
Automaticity in motor sequence learning does not impair response inhibition
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DOI：
10.3758/pbr.15.1.108
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发表时间：
2008-02-01
影响因子：
3.5
通讯作者：
Poldrack, Russell A.
中科院分区：
文献类型：
--
作者：
Cohen, Jessica R.;Poldrack, Russell A.
我们在连续反应时（SRT）任务中考察了自动性和反应抑制之间的关系，以检验自动行为是弹道式的这一常见论断。参与者在SRT上训练3小时，使用与随机块交织的二阶条件序列块。自动性测量使用并发二级字母计数任务。使用停止信号任务测量反应抑制。RT随着训练而下降，顺序组与随机组相比下降幅度更大。训练与RT成本降低，同时执行次要任务的SRT，表明自动性的发展。至关重要的是，在训练结束时，抑制反应的能力没有变化，即使在没有双重任务干扰的个体中也是如此。这些结果表明，抑制运动反应的能力不会随着自动性而降低，这表明自动行为的某些方面不是弹道式的。
We examined the relationship between automaticity and response inhibition in the serial reaction time (SRT) task to test the common assertion that automatic behavior is ballistic. Participants trained for 3 h on the SRT, using blocks of a second-order conditional sequence interleaved with random blocks. Automaticity was measured using a concurrent secondary letter-counting task. Response inhibition was measured using a stop-signal task. RTs decreased with training, with a greater decrease for sequenced versus random blocks. Training correlated with a decreased RT cost to performing the secondary task concurrently with the SRT, indicating the development of automaticity. Crucially, there was no change in the ability to inhibit responses at the end of training, even in individuals who showed no dual-task interference. These results demonstrate that the ability to inhibit a motor response does not decrease with automaticity, suggesting that some aspects of automatic behavior are not ballistic.