EXPRESS: Why do location-based preference effects occur within decision making? Evidence from the magician's force

Area of Science:

• Cognitive Psychology
• Human-Computer Interaction
• Behavioral Economics

Background:

• Humans exhibit a central bias, preferring items in the middle of their visual field.
• Existing theories propose cognitive heuristics or attentional biases to explain this phenomenon.
• A conjuring trick, the placement force, demonstrates a subtle right-of-center bias.

Purpose of the Study:

• To investigate the underlying mechanisms of the central bias and the placement force effect.
• To test whether cognitive decision-making strategies or attentional biases influence choice.
• To evaluate the reachability hypothesis as an explanation for the observed preference.

Main Methods:

• 137 participants selected one of four face-down playing cards presented in a row.
• Eye-tracking technology monitored visual attention during the selection task.
• The Cognitive Reflection Test (CRT) assessed participants' decision-making style.

Main Results:

• The placement force effect was replicated, with 52% choosing the middle-right card.
• Eye-tracking showed more attention to central cards, but this did not predict choice.
• Decision-making style, deliberation time, and alternatives examined did not affect susceptibility to the force.

Conclusions:

• Central bias and the placement force effect are not explained by cognitive heuristics or attentional biases.
• The findings support the reachability hypothesis, indicating choices are influenced by physical effort.
• Minimizing physical effort appears to be a primary driver in this preference task.