New research shows that the human brain only needs 108 milliseconds to recognize food

Tech 2023-10-22 19:01:30 Source: Network

Xinhua News Agency, Beijing, October 22 (Xinhua) - A new Australian study shows that the human brain can recognize whether an object is food within 108 milliseconds. This study helps to better understand how humans perceive food visually and can also be used to change the direction of advertising

Xinhua News Agency, Beijing, October 22 (Xinhua) - A new Australian study shows that the human brain can recognize whether an object is food within 108 milliseconds. This study helps to better understand how humans perceive food visually and can also be used to change the direction of advertising.

A new study suggests that when identifying food, the senses such as smell have limited impact on humans due to the proximity of the food. Therefore, for human ancestors, vision was the main sensory organ for long-distance foraging. But previously, scientists had little knowledge about the brain's processing processes when humans see food.

According to a recent report on the website of New Scientist, in order to study this process, Tom Carlson and his colleagues from the University of Sydney in Australia asked 20 participants to watch multiple images and monitor each person's EEG activity. The researchers selected 314 images that the subjects had never seen before, including natural food, processed food, and non food items such as socks and hammers. These images were presented to the subjects in 6 groups, with each group appearing for approximately 24 seconds. The results showed that all participants' EEG activity characteristics related to specific cognitive processes appeared between 108 and 116 milliseconds after seeing food images.

Researchers suggest that a better understanding of how humans perceive food visually may help make healthier choices. Carlson said that when people go to supermarkets, watch advertisements, or see posts about food on social media, visual signals usually guide them to choose which food, and many advertisements are primarily visual.

The research results have been published on the US preprint website "Biology Paper Archives Network".

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