In linguistics, sound symbolism is an idea that the vocal sounds of certain words carry meaning in themselves. This paper focuses on the sound symbolism of onomatopoeic words and demonstrates the close relationship between sound symbolism and sentiment polarity. Because onomatopoeic words imitate the sounds they represent, they can help us better understand the sentiment of a sentence when utilizing sound symbolism. Therefore, we modeled sound symbolism with N-gram-based features and applied the model to a series of sentiment classification tasks. The experimental results show that this method with sound symbolism significantly outperformed the baseline method without sound symbolism, which effectively demonstrates that a close relationship exists between sound symbolism and sentiment polarity.
We know from daily experiences that visual sensations persist for some time following any momentary stimulation of light to the retina,-a fact generally known as "after-image."After-images are classified into positive and negative, but little has hitherto been known about the exact time relation of these phenomena, because both the beginning and the end of sensations are difficult to be marked. The following is the record of our experiments carried out for the measurement of the details of time relation comprised in the phenomena of after-image and the endurance of consciousness.
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