Animal-to-robot social attachment: initial requisites in a gallinaceous bird

Area of Science:

• Ethology
• Robotics
• Developmental Psychology

Background:

• Animal-Robot Interaction (ARI) is a valuable tool for understanding animal social behavior.
• Social influences, from parents and peers, significantly impact behavioral development in young animals.
• Precocial species, like quail chicks, are susceptible to imprinting, a critical early-life learning process.

Purpose of the Study:

• To investigate the mechanisms of social influences on behavioral development using ARI.
• To compare the effects of early robot exposure versus conspecific exposure on social bonding and synchronization in quail chicks.
• To determine the necessary initial conditions for stable, cohesive mixed groups of animals and robots.

Main Methods:

• Experimental setup with young quail chicks living with autonomous mobile robots in triadic groups (2 chicks, 1 robot).
• Comparison of two groups: 'R chicks' (robot as first social partner) and 'C chicks' (conspecific first, robot second).
• Measurement of behavioral synchronization over three days and separation-reunion tests to assess social bonds.

Main Results:

• R chicks exhibited greater behavioral synchronization with the robot in daily activities compared to C chicks.
• R chicks emitted distress calls when separated from the robot, even with another chick present.
• C chicks primarily emitted distress calls when separated from the other chick, not the robot.

Conclusions:

• Early exposure to a robot facilitates stronger social bonds and synchronization in quail chicks.
• The timing of social partner introduction (robot vs. conspecific) critically influences the development of mixed-species social dynamics.
• These findings highlight the potential of ARI as a tool for studying long-term social behavior dynamics and establishing cohesive animal-robot groups.