#Scent

A groundbreaking study has revealed that scents can fundamentally alter decision-making in mammals by forging indirect associations in the brain—findings that may pave the way for innovative treatments for mental health conditions in humans. The new research, conducted by a multidisciplinary team led by a doctoral student and supervised by a leading neuroscientist, used behavioral experiments in mice to explore how the brain’s response to smells influences future choices—offering important insights for both science and society.

A recent study reveals that odors can subtly shape decision-making by forming indirect brain connections. For Thai audiences, the findings illuminate potential future therapies for mental health conditions while underscoring the practical value of everyday scents.

In the research, mice learned to associate a banana scent with a pleasant taste and an almond scent with a salty taste. Later, the banana scent was paired with an unpleasant event. The mice began avoiding the sweet taste whenever the banana odor appeared, even though the taste itself did not change. This demonstrates that decisions can be guided by indirect connections between sensory cues. The lead investigator explains that the brain creates an indirect link between the sweet taste and the aversive experience through its association with a specific smell.