Faculty of Engineering and Computer Science, National University of Modern Languages, Islamabad, Pakistan.
Department of Computer Science & Engineering, HITEC University, Museum Road, Taxila, Pakistan.
Comput Intell Neurosci. 2022 Jul 11;2022:6474515. doi: 10.1155/2022/6474515. eCollection 2022.
Human cognition is influenced by the way the nervous system processes information and is linked to this mechanical explanation of the human body's cognitive function. Accuracy is the key emphasis in neuroscience which may be enhanced by utilising new hardware, mathematical, statistical, and computational methodologies. Feature extraction and feature selection also play a crucial function in gaining improved accuracy since the proper characteristics can identify brain states efficiently. However, both feature extraction and selection procedures are dependent on mathematical and statistical techniques which implies that mathematical and statistical techniques have a direct or indirect influence on prediction accuracy. The forthcoming challenges of the brain-computer interface necessitate a thorough critical understanding of the complicated structure and uncertain behavior of the brain. It is impossible to upgrade hardware periodically, and thus, an option is necessary to collect maximum information from the brain against varied actions. The mathematical and statistical combination could be the ideal answer for neuroscientists which can be utilised for feature extraction, feature selection, and classification. That is why in this research a statistical technique is offered together with specialised feature extraction and selection methods to increase the accuracy. A score fusion function is changed utilising an enhanced cumulants-driven likelihood ratio test employing multivariate pattern analysis. Functional MRI data were acquired from 12 patients versus a visual test that comprises of pictures from five distinct categories. After cleaning the data, feature extraction and selection were done using mathematical approaches, and lastly, the best match of the projected class was established using the likelihood ratio test. To validate the suggested approach, it is compared with the current methods reported in recent research.
人类认知受到神经系统处理信息方式的影响,并且与这种对人体认知功能的机械解释相关联。在神经科学中,准确性是关键重点,通过利用新的硬件、数学、统计和计算方法可以提高准确性。特征提取和特征选择在提高准确性方面也起着至关重要的作用,因为适当的特征可以有效地识别大脑状态。然而,特征提取和选择过程都依赖于数学和统计技术,这意味着数学和统计技术对预测准确性有直接或间接的影响。脑机接口的未来挑战需要对大脑的复杂结构和不确定行为进行深入的批判性理解。硬件不可能定期升级,因此需要有一种选择来针对各种动作从大脑中收集最多的信息。数学和统计的组合可能是神经科学家的理想答案,可以用于特征提取、特征选择和分类。这就是为什么在这项研究中,提供了一种统计技术,以及专门的特征提取和选择方法来提高准确性。利用多元模式分析,使用增强的累积量驱动似然比检验来改变得分融合函数。从 12 名患者获取功能磁共振成像数据,与包含五个不同类别的图片的视觉测试相对比。在清理数据之后,使用数学方法进行特征提取和选择,最后使用似然比检验建立最佳匹配的预测类别。为了验证所提出的方法,将其与最近研究中报告的现有方法进行了比较。