Partial response activation to masked primes is not dependent on response readiness
Partial response activation to masked primes is not dependent on response readiness
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DOI：
10.2466/pms.92.1.208-222
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发表时间：
2001-02-01
影响因子：
1.6
通讯作者：
Eimer, M
中科院分区：
文献类型：
--
作者：
Schlaghecken, F;Eimer, M
掩蔽启动在目标之前呈现在中央凹，触发其相应反应的初始部分激活，然后抑制相同的反应。后一阶段导致相容试验的性能成本和不相容试验相对于中性试验的性能收益（负比较效应）。本研究探讨了这种激活-抑制-跟随的过程是否取决于反应准备的总体或特定状态。在两个掩蔽启动实验中。通过改变Go/NoGo任务（实验1）中Go试验的相对频率和2-备选选择反应时任务（实验1）中左手和右手反应的相对频率来操纵反应准备状态。2）。在两个实验中。不频繁反应的平均反应时间长于频繁反应。然而.负相容性效应也不受响应频率的影响。这一结果表明，无论是掩蔽启动的一般能力，以引起部分电机激活，也不是这个过程的具体时间过程是依赖于反应准备。它的结论是，响应准备影响执行一个公开的响应，而不是初始激活这个响应。
Masked primes presented foveally prior to a target trigger an initial partial activation of their corresponding response, followed by an inhibition of the same response. The latter phase results in performance costs on compatible trials and performance benefits on incompatible trials relative to neutral trials (negative comparibility effect). The present study investigated whether this activation-follow-by-inhibition process depends on the overall or specific state of response readiness. in two masked priming experiments. response readiness uas manipulated by varying the relati\ frequency of Go-trials in a Go/NoGo task (Exp.1) and the relative frequency of left- and right-hand responses in a 2-alternative choice reaction time task (Exp. 2). In both experiments. mean reaction times were longer for infrequent responses than for frequent responses. However. negative compatibility effects were nor affected by response frequency. This result indicates that neither the general ability of masked primes to elicit a partial motor activation nor the specific time course of this process is dependent on response readiness. It is concluded that response readiness affects the execution of an overt response rather than the initial activation of this response.