Social interactions can simultaneously enhance and distort memories: Evidence from a collaborative recognition task

Area of Science:

• Cognitive Psychology
• Social Neuroscience
• Memory Research

Background:

• Social interactions are known to influence memory formation and recall.
• Individuals may integrate misinformation from social sources, leading to memory contamination.
• Understanding the mechanisms of social memory contagion is crucial for cognitive science.

Purpose of the Study:

• To investigate social contagion effects on memory within a collaborative recognition task.
• To examine how varying levels of information sharing impact memory accuracy.
• To determine if individual retrieval practice before collaboration mitigates social contagion.

Main Methods:

• Two experiments utilized a novel recognition-based collaboration task with word lists.
• Participants studied words under different sharing conditions: group-shared, dyadic-shared, and unshared.
• Recognition tests were conducted both collaboratively and individually, with some participants undergoing pre-collaboration individual testing.

Main Results:

• Collaboration enhanced individual memory, particularly for group-shared information.
• Significant social contagion effects were observed, intensifying with broader misinformation sharing within the group.
• Pre-collaboration individual testing reduced the impact of social contagion on memory.

Conclusions:

• Social interactions possess a dual capacity to both strengthen and distort individual memories.
• The structure of social sharing significantly modulates memory enhancement and misinformation susceptibility.
• Memory retrieval processes play a key role in mediating the effects of social influence on memory.