Determining social mechanisms for sequential decision-making in a virtual pedestrian route choice experiment

Area of Science:

• Social psychology
• Behavioral economics
• Collective intelligence

Background:

• Individuals in moving groups often observe others' choices for decision-making.
• Previous research suggested weighting recent decisions or using simple heuristics, with some animal studies supporting recency bias.

Purpose of the Study:

• To investigate human social decision-making mechanisms in route selection.
• To determine whether individuals prioritize recent or majority past decisions.

Main Methods:

• An online survey with human participants was conducted.
• Participants' route choices were analyzed to identify decision-making patterns.
• Self-reported decision-making strategies were collected and correlated with observed behavior.

Main Results:

• Human participants showed a strong tendency to follow the majority of previous decisions.
• Little evidence was found for a significant weighting of more recent decisions.
• Self-reported mechanisms generally correlated with observed behavior, indicating some self-awareness.

Conclusions:

• The dominant social decision-making strategy in this context is following the majority.
• Findings challenge previous assumptions about recency bias in human group movement.
• Results provide a more realistic basis for pedestrian movement models.