When mere action versus inaction leads to robust preference change.

Area of Science:

• Cognitive Psychology
• Behavioral Economics
• Neuroscience

Background:

• Understanding preference formation and modification is key to explaining human behavior.
• Previous research highlights the impact of actions on preferences, but the specific role of mere action versus inaction requires further investigation.

Purpose of the Study:

• To examine how preferences for food items can be altered by linking mere action or inaction to them.
• To determine the conditions under which preferences change and the longevity of these changes.

Main Methods:

• Seven preregistered experiments utilized a go/no-go training paradigm where participants learned to respond to or withhold responses to specific food items.
• Post-training, participants made repeated choices between trained 'go' and 'no-go' food items for consumption, with decision time manipulated and measured.
• Preference changes were assessed immediately after training and one week later.

Main Results:

• Participants showed increased preference for 'go' items under time pressure, indicating successful preference modification.
• Preference changes were observed across various food pairings (healthy, unhealthy, mixed) and persisted, albeit diminished, one week post-training.
• The preference-shifting effect was significantly weaker and non-significant when choices were made without time pressure.

Conclusions:

• Preference modification via go/no-go training is effective but context-dependent, primarily occurring under conditions of rapid decision-making.
• The observed effects are relatively short-lived, suggesting that sustained behavioral change may require repeated interventions or different strategies.
• These findings advance the understanding of go/no-go training mechanisms and their application in behavioral interventions, while also posing new theoretical questions.