Using Transcranial Direct Current Stimulation (tDCS) to Influence Decision Criterion in a Target Detection Paradigm
Using Transcranial Direct Current Stimulation (tDCS) to Influence Decision Criterion in a Target Detection Paradigm
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DOI：
10.1037/xan0000329
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发表时间：
2022-06-23
影响因子：
1.3
通讯作者：
McLaren, I. P. L.
中科院分区：
文献类型：
--
作者：
Civile, Ciro;McLaren, Rossy;McLaren, I. P. L.
在这篇文章中，我们研究了用于模拟感知学习和面部识别的心理学理论如何用于预测在Fp 3部位通过DLPFC传递的阳极tDCS（在1.5 mA强度下持续10分钟）调节目标检测任务中的决策标准C（而不是d-prime [d ']）。在两个受试者之间和双盲实验（n = 112），我们研究了tDCS的影响C当受试者从事目标检测任务，在第一个实例涉及人工棋盘刺激（实验1a），随后面对刺激（实验1b）。从这两个实验的结果表明，在假/对照组的显着更高的C时，使用检测目标图案（实验1a）或面对（实验1b），而不是一个随机的背景上提出的。重要的是，在实验1a和1b中，阳极tDCS显著降低/逆转了用于熟悉背景和随机背景的C之间的这种差异，而不影响d '。这些结果有助于推进我们对tDCS诱导的刺激表征效应的理解，并有助于有关C。
In this article we investigate how a psychological theory used to model perceptual learning and face recognition can be used to predict that anodal tDCS delivered over the DLPFC at Fp3 site (for 10 mins duration at 1.5 mA intensity) modulates the decision criterion, C, (and not d-prime [d']) in a target detection task. In two between-subjects and double-blind experiments (n = 112) we examined the tDCS effects on C when subjects were engaged in a target detection task, in the first instance involving artificial checkerboard stimuli (Experiment 1a), and subsequently face stimuli (Experiment 1b). The results from both experiments revealed that in the sham/control groups a significantly higher C was used when detecting a target pattern (Experiment 1a) or face (Experiment 1b) presented on a familiar rather than a random background. Importantly, anodal tDCS significantly reduced/reversed this difference between C adopted for familiar and random backgrounds in both Experiment 1a and 1b without affecting d'. These results contribute to advance our understanding of the tDCS-induced effects on stimulus representation and to the literature regarding the modulation of C.