Creating false rewarding memories guides novel decision making.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Behavioral Economics

Background:

• Episodic memory significantly influences value-based decision-making.
• The impact of false memories on novel decision-making remains underexplored.

Purpose of the Study:

• To investigate if distorted memories of past rewarding experiences affect decision-making preferences.
• To examine the role of false memory in guiding choices in new situations.

Main Methods:

• Utilized the Deese/Roediger-McDermott false memory paradigm combined with a reward learning task.
• Conducted three cross-cultural experiments to create and test false reward memories.
• Assessed participants' memory recall and decision-making preferences for learned and unpresented items.

Main Results:

• Successfully induced false memories of reward, where participants recalled non-presented items as rewarding.
• False memories of reward led to increased preference and faster responses towards lure items.
• The strength of false memory formation correlated positively with preference for lure items.

Conclusions:

• Memory's reconstructive nature allows for the creation of novel memory episodes that guide decision-making.
• False memories of reward can shape preferences and influence choices in new contexts.
• The effect of false memory on decision-making is robust and not solely dependent on memory retrieval cues.