The event - related potential ( erp ) of 29 channels were analyzed with dllm . the result were compared before and after special filter ( hjorth transformation ) . the acquired dipole distribution reflects different cognitive process 在真实脑波分析中，数据来自于29导事件相关电位记录，通过本模型分析了5个特定时刻在空间滤波( hjorth变换)前后的偶极子分布，它们反映了不同心理过程涉及的脑区域。
