Cross-Modal Communication: Sound Frequency Influences Consumer Responses to Color Lightness
研究发现声音频率会自动引导视觉注意，高频声音让人更关注浅色物体，低频声音则导向深色物体，并通过眼动实验和超市购物场景验证了其在营销中的应用。
This research demonstrates that the synesthetic cross-modal correspondence between sound frequency and color lightness can guide visual attention: high-frequency (low-frequency) sounds guide visual attention toward light-colored (dark-colored) objects. Three eye-tracking studies indicate that this influence is automatic; it arises without goals or conscious awareness, it seems to take precedence over the influence from a simultaneously occurring semantic correspondence, and it even operates despite explicit instructions to the contrary. Two additional studies highlight the potential role for this influence in marketing contexts. In Study 4, the audio frequency in a soundtrack guides visual attention in a commercial, as evidenced by recall of marketing messages. In Study 5, customers in a supermarket exposed to high-frequency (vs. low-frequency) music are more likely to purchase products from a shelf with light (vs. dark) decor.