Either or neither, but not both: locating the effects of masked primes
Either or neither, but not both: locating the effects of masked primes
复制标题
DOI：
10.1098/rspb.2008.0933
复制
发表时间：
2009-02-07
影响因子：
4.7
通讯作者：
Maylor, Elizabeth A.
中科院分区：
文献类型：
--
作者：
Schlaghecken, Friederike;Klapp, Stuart T.;Maylor, Elizabeth A.
由后掩蔽刺激引发的反应的执行被抑制（负相容性效应; NCE）。三个实验研究了这种抑制的轨迹。掩蔽的素数（指向左或右的箭头）后面跟着一个箭头或一个圆形目标。箭头目标总是需要左手或右手的反应，但实验中所需的反应不同的圆圈：按下都不，一个或两个响应键（即nogo，自由选择和双手，分别）。箭靶显示了通常的NCE。圆圈目标显示NCE的形式的反应偏差远离启动反应的nogo和自由选择任务;启动和目标不同，这些试验，排除了知觉解释NCE。双手任务没有表现出这样的偏见，这表明NCE位于抽象的反应代码，而不是具体的肌肉命令的水平。
Execution of a response that has been primed by a backward-masked stimulus is inhibited (negative compatibility effect; NCE). Three experiments investigated the locus of this inhibition. Masked primes (left-or right-pointing arrows) were followed either by an arrow or a circle target. Arrow targets always required a left-or right-hand response, but the experiments differed in the response required to circles: press neither, either or both response keys (i.e. nogo, free choice and bimanual, respectively). Arrow targets showed the usual NCEs. Circle targets showed NCEs in the form of a response bias away from the primed response in the nogo and free-choice tasks; primes and targets differed on these trials, ruling out a perceptual explanation of the NCE. The bimanual task showed no such bias, suggesting that the NCE is located at a level of abstract response codes rather than specific muscle commands.