Opportunities, pitfalls and trade-offs in designing protocols for measuring the neural correlates of speech
Opportunities, pitfalls and trade-offs in designing protocols for measuring the neural correlates of speech
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DOI：
10.1016/j.neubiorev.2022.104783
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发表时间：
2022-07
影响因子：
8.2
通讯作者：
Ciaran Cooney;R. Folli;D. Coyle
中科院分区：
文献类型：
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作者：
Ciaran Cooney;R. Folli;D. Coyle
近年来，直接从人脑解码语音和语音相关过程的研究得到了加强，因为这种解码器有可能对由于疾病或受伤而通信能力有限的人产生积极影响。此外，它可以呈现全新的人机交互和人机通信形式，并促进对语音过程的更好的神经科学理解。在这里，我们综合有关如何进行语音解码实验的神经语音解码的文献，凝聚在一个深思熟虑的实验设计，针对特定的研究目标，和强大的程序来评估语音解码范式的必要性。我们研究使用不同的方式呈现刺激的参与者，方法建设的范例，包括时间和语音节奏，以及可能的语言考虑。此外，新的方法，引发自然的语音和验证想象的语音任务的性能在实验设置的基础上，最近的研究。我们还描述了用于指导参与者如何在实验期间产生想象语音的大量术语，并提出了研究这些术语对想象语音解码的影响的方法。我们证明了神经语音解码研究中使用的实验程序的范围可能会产生意想不到的后果，这可能会影响所获得的知识的功效。该审查划定的优点和缺点，目前的方法，并提出了方法的进步，我们预计将提高实验设计，并朝着运动独立的直接语音脑机接口的最佳设计的进展。
Decoding speech and speech-related processes directly from the human brain has intensified in studies over recent years as such a decoder has the potential to positively impact people with limited communication capacity due to disease or injury. Additionally, it can present entirely new forms of human-computer interaction and human-machine communication in general and facilitate better neuroscientific understanding of speech processes. Here, we synthesize the literature on neural speech decoding pertaining to how speech decoding experiments have been conducted, coalescing around a necessity for thoughtful experimental design aimed at specific research goals, and robust procedures for evaluating speech decoding paradigms. We examine the use of different modalities for presenting stimuli to participants, methods for construction of paradigms including timings and speech rhythms, and possible linguistic considerations. In addition, novel methods for eliciting naturalistic speech and validating imagined speech task performance in experimental settings are presented based on recent research. We also describe the multitude of terms used to instruct participants on how to produce imagined speech during experiments and propose methods for investigating the effect of these terms on imagined speech decoding. We demonstrate that the range of experimental procedures used in neural speech decoding studies can have unintended consequences which can impact upon the efficacy of the knowledge obtained. The review delineates the strengths and weaknesses of present approaches and poses methodological advances which we anticipate will enhance experimental design, and progress toward the optimal design of movement independent direct speech brain-computer interfaces.