The Brain Activities under Real Crisp Cutting Sound: An Autonomous Sensory Meridian Response (ASMR) Study

ASMR which can be evoked by many ways, is one of the sensory phenomena that has been noticed recently. Its mechanism is still obscure. Real sound which contains abundantly wide-frequency information is one of the most popular evoked ways. This study aims to explore the ASMR’s mechanism evoked by real crisp cutting sound. The brain activities under real sound stimulus, white noise stimulus and no stimulus are analyzed. A quantized index is proposed to evaluate the effects evoked by these stimuli. A significant enhancement of alpha 1 frequency is disclosed on parietal lobe and occipital lobe under the real crisp cutting sound. The results prove that ASMR owns similar mechanism to compare with attention reduction. This study is favorable to further uncovering the mechanism of ASMR, and thus helpful to explore how the human brain works.