2. Brief historic overview
Donders (1868/1969) formulated a way to investigate human information processing
by demonstrating that some tasks take longer to initiate than others. He proposed
a stage insertion/deletion method in which a relatively simple task could be made a
bit more difficult by requiring participants to do an extra ‘computation’ before
executing a response. By carefully manipulating this extra computation, Donders
reasoned that the time needed by this computation could be deduced by subtracting
the time to initiate the easier task from the time to start the more difficult task, much
like comparing the latency to generate the outcome of the sum 3þ4 with that of the
sum 3þ4þ5. To implement this general method in more detail, Donders defined
three characteristic tasks that differed in the processes needed to correctly fulfil the
task requirements. Type-a reactions/tasks were simple RTs reflecting only sensory
584 P. M. C. Lemmens et al.
and motor processes. The b-type reactions were choice RTs with two stimulus and
two response alternatives (including discrimination and response choice next to the
sensory and motor processes of the a-type task), whereas the type-c reactions were
similar to a go/no-go paradigm (with discrimination processes but no response
choice). This way the duration of, for instance, the response–choice process could be
estimated by subtracting response times of c-tasks from b-tasks. This method of pure
stage insertion was the first processing stages approach to choice RT (Sanders 1998).
However, difficulties were found creating sufficiently different type-b and type-c
tasks as it appeared that both types of tasks required response choice. To overcome
the methodological as well as statistical criticisms on Donders’ subtraction method,
Sternberg (1969) defined the additive factors method (AFM, sometimes also referred
to as additive factors logic, AFL) that assumed, like the subtraction method of
Donders, that response-time latencies consist of the sum of the intervals that a
sequentially ordered modular set of processing stages take to translate a stimulus
into a response and start executing this response (Sanders 1998). Each of these stages
takes care of processing a certain aspect of the stimulus or response, possibly
influenced by an experimental manipulation. The benefit of the AFM over Donders’
method were the statistical assumptions that Sternberg formulated, creating a solid
statistical framework in which experimental results from factorial designs could be
interpreted in only a single way. Interactions between two (or more) factors signified
that all factors acted upon the same information processing stage whereas additive
effects implied that each involved factor influenced a different stage. Thus, during
the heydays of the AFM around seven different stages were proposed or discovered,
among which the stages of feature extraction, stimulus identification, response
selection and motor programming received most attention and consensus (Gopher
and Sanders 1984, Sanders 1980, 1983, 1990, 1998).
However, these statistical premises, including ones derived from the basic
assumptions, were violated quite easily. For instance, the stage-robustness criterion
(Gopher and Sanders 1984), a derived assumption arguing for constancy of the stage
structure over many variations (including number) of factors over experiments, was
violated using stimuli typically used in experiments employing stimulus–response
compatibility paradigms (Ridderinkhof et al. 1995, Sanders 1998). Dual-route
architectures were proposed (de Jong, Liang and Lauber 1994, Kornblum et al. 1990,
Ridderinkhof et al. 1995) to overcome the limitations that the AFM imposed on
SRC experiments.
3. Stimulus–
2.简要的历史概述东德斯 (1868年/1969) 制定方法来研究人类的信息处理通过展示一些任务采取启动比别人更长的时间。他提议可以在一个相对简单的任务阶段插入/删除方法通过要求参与者要做一个额外的计算前会有点更困难执行响应。通过仔细地操纵这额外的计算,教育学按此计算所需的时间可能会由此减去的理由时间着手从时候开始更加艰巨的任务,更容易像比较生成与成果的总和 3þ4 的延迟时间总和 3þ4þ5。落实这个一般的方法的更多细节,教育学定义正确履行所需的过程在不同的三个典型任务任务要求。类型一反应/任务是简单的 RTs 只反映感官584 P.M.C.集团基因产品 et al。和电机的流程。B 型反应选择 RTs 与两个刺激和两个响应备选方案 (包括歧视和反应选择下一步感觉和运动过程的一个类型 (任务),而 c 型反应类似于去不去 (与歧视进程但没有响应范式选择)。这种方式将此期限延长,例如,响应 — — 选择过程估计减去 c 任务从 b 任务的响应时间。这种纯方法stage insertion was the first processing stages approach to choice RT (Sanders 1998).However, difficulties were found creating sufficiently different type-b and type-ctasks as it appeared that both types of tasks required response choice. To overcomethe methodological as well as statistical criticisms on Donders’ subtraction method,Sternberg (1969) defined the additive factors method (AFM, sometimes also referredto as additive factors logic, AFL) that assumed, like the subtraction method ofDonders, that response-time latencies consist of the sum of the intervals that asequentially ordered modular set of processing stages take to translate a stimulusinto a response and start executing this response (Sanders 1998). Each of these stagestakes care of processing a certain aspect of the stimulus or response, possiblyinfluenced by an experimental manipulation. The benefit of the AFM over Donders’method were the statistical assumptions that Sternberg formulated, creating a solidstatistical framework in which experimental results from factorial designs could beinterpreted in only a single way. Interactions between two (or more) factors signifiedthat all factors acted upon the same information processing stage whereas additiveeffects implied that each involved factor influenced a different stage. Thus, duringthe heydays of the AFM around seven different stages were proposed or discovered,其中的特征提取、 刺激识别、 响应阶段选择和电机编程收到大部分注意力和共识 (Gopher和桑德斯 1984 年,桑德斯 1980 年,1983 年,1990 年 1998 年)。然而,这些统计的处所,包括那些来自基本假设,很容易受到侵犯。例如,阶段的鲁棒性判据(gopher 和桑德斯 1984年),一个派生的假设为恒常性阶段的辩护许多变化 (包括数字) 的实验中,因素的结构违反使用通常用于在实验中采用刺激 — — 反应的刺激兼容性模式 (Ridderinkhof et al.1995年,桑德斯 1998年)。双路由体系结构,并建议 (de Jong,梁 Lauber 1994 年,科恩 et al.1990 年,Ridderinkhof et al.1995年),克服 AFM 强加的限制SRC 实验。3.刺激 — —
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