期刊
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
卷 128, 期 -, 页码 749-765出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neubiorev.2021.07.013
关键词
Response inhibition; Stop-signal task; Prefrontal cortex; Transcranial direct current stimulation
资金
- German Research Foundation (DFG) [FR 4485/1-1, HA 6314/4-4, HA 6314/9-1]
- Max Planck Society
- German Academic Exchange Service (DAAD)
tDCS is commonly used to investigate the involvement of different cortical regions in response inhibition. Studies have shown that its effects depend on polarity, time, and stimulation sites. There is variability in methodology and heterogeneous effects of tDCS on performance, with the most consistent result being performance enhancement with anodal tDCS over the right prefrontal cortex.
Transcranial direct current stimulation (tDCS) is widely used to explore the role of various cortical regions for reactive response inhibition. In recent years, tDCS studies reported polarity-, time- and stimulation-site dependent effects on response inhibition. Given the large parameter space in which study designs, tDCS procedures and task procedures can differ, it is crucial to systematically explore the existing tDCS literature to increase the current understanding of potential modulatory effects and limitations of different approaches. We performed a systematic review on the modulatory effects of tDCS on response inhibition as measured by the Stop-Signal Task. The final dataset shows a large variation in methodology and heterogeneous effects of tDCS on performance. The most consistent result across studies is a performance enhancement due to anodal tDCS over the right prefrontal cortex. Partially sub-optimal choices in study design, methodology and lacking consistency in reporting procedures may impede valid conclusions and obscured the effects of tDCS on response inhibition in some previous studies. Finally, we outline future directions and areas to improve research.
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