Embodied decision biases: individually stable across different tasks?

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Motor Control

Background:

• Action and decision-making are closely linked in daily life.
• Action-based models propose that actions can bias decision-making, influenced by motor costs and cognitive crosstalk.
• Previous studies confirmed embodied decision biases in tasks like walking and manual movements.

Purpose of the Study:

• To investigate whether embodied decision biases generalize across different tasks within individuals.
• To determine if action-based decision biases observed in one task are present in another task for the same participant.

Main Methods:

• A within-participant design was employed, where participants completed two distinct decision-making tasks.
• Task 1 involved a walking paradigm, known to elicit embodied decision biases.
• Task 2 involved a manual movement task, also known to produce embodied decision biases.

Main Results:

• Embodied decision biases were successfully replicated in both the walking and manual movement tasks.
• No significant correlation was found in the strength of these biases between the two tasks for individual participants.
• The findings indicate a lack of transfer of embodied decision biases across tasks.

Conclusions:

• Embodied decision biases are task-specific and do not appear to generalize across different motor tasks within individuals.
• The underlying mechanisms of motor costs and cognitive crosstalk may differ between tasks, explaining the lack of transfer.
• Further research is required to fully understand the task-specific nature of embodied decision biases.