Dang Jasmine S, Figueroa Ivonne J, Helton William S
Department of Psychology, George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA.
Exp Brain Res. 2018 Aug;236(8):2255-2262. doi: 10.1007/s00221-018-5291-6. Epub 2018 May 30.
The Sustained Attention to Response Task (SART) has been widely used in psychological literature as a measure of vigilance (the ability to sustain attention over a prolonged period of time). This task uses a Go/No-Go paradigm and requires the participants to repetitively respond to the stimuli as quickly and as accurately as possible. Previous literature indicates that performance in SART is subjected to a "speed-accuracy trade-off" (SATO) resulting from strategy choices and from the failures of controlling motor reflexes. In this study, 36 participants (n = 36) performed a series of four SARTs. The results support the perspective of strategy choice in SART and suggest that within-subjects SATO in SART should also be acknowledged in attempting to explain SART performance. The implications of the speed-accuracy trade-off should be fully understood when the SART is being used as a measure or tool.
持续注意力反应任务（SART）在心理学文献中被广泛用作一种警觉性（在较长时间内保持注意力的能力）的测量方法。该任务采用“是/否”范式，要求参与者尽可能快速、准确地对刺激做出重复反应。先前的文献表明，SART任务中的表现受到因策略选择和控制运动反射失败而导致的“速度-准确性权衡”（SATO）的影响。在本研究中，36名参与者（n = 36）进行了一系列四个SART任务。结果支持了SART中策略选择的观点，并表明在试图解释SART表现时，也应承认SART任务中受试者内的速度-准确性权衡。当SART被用作一种测量方法或工具时，应充分理解速度-准确性权衡的含义。
