New research shows that everyday sights and sounds can trap some people in harmful choices by influencing their brains through associative learning. Those highly sensitive to these cues struggle to update their responses when outcomes turn negative, leading to persistent risky behavior. The findings, led by Giuseppe di Pellegrino at the University of Bologna, highlight implications for addictions and anxiety.
People absorb information from their surroundings, such as visual details and background noises, which the brain links to expected results through associative learning. This mechanism typically aids quicker, smarter decisions in daily life. However, it varies among individuals, with some relying heavily on these environmental cues to guide actions.
For those with compulsive disorders, addictions, or anxiety, these cues can overpower rational choice, pushing toward or away from certain stimuli even when it results in harm. Giuseppe di Pellegrino of the University of Bologna spearheaded a study on this maladaptive decision making, where repeated negative consequences fail to deter poor choices. Published in The Journal of Neuroscience, the research reveals wide differences in cue dependence: some people lean strongly on visuals and sounds, while others do not.
A key issue emerges for the highly cue-driven: when cues shift to indicate riskier outcomes, these individuals often fail to adapt. Their brains resist updating old associations, treating situations as unchanged despite clear evidence. This rigidity fosters ongoing disadvantageous decisions, like repeating harmful patterns.
The team attributes this to heightened cue sensitivity paired with impaired revision of learned values, which may underlie stubborn behaviors in addictions, compulsions, and anxiety. Future work will explore these traits in patient groups to clarify links between cue responses and such conditions. The study, titled 'Reduced Pavlovian value updating alters decision-making in sign-trackers,' appears in the 2025 edition of the journal.
