Humans Can Detect Quick Chemical Changes in Smells with Each Sniff

Human olfactory perception, traditionally viewed as slow, can actually detect rapid changes within a single sniff, as shown by new research. Using a precise sniff-triggered device, researchers presented different odors in close succession and found that participants could distinguish between them with only a 60-millisecond delay. This challenges the notion that our sense of smell is limited in speed, revealing a temporal sensitivity similar to visual perception.