Learning and Its Neural Correlates in a Virtual Environment for Honeybees

Area of Science:

• Neuroscience
• Animal Behavior
• Virtual Reality Applications

Background:

• Studying neural correlates of learning typically requires balancing stable neural recordings with naturalistic animal movement, a challenging combination.
• Honeybees (Apis mellifera) are valuable models for studying learning and memory due to their complex behaviors.

Purpose of the Study:

• To develop a virtual environment (VE) enabling stable neural recordings during operant and observational learning in honeybees.
• To investigate the neural basis of learning by recording from mushroom body extrinsic neurons in a VE.

Main Methods:

• Developed a VE simulating a 3D world for honeybees walking on a spherical treadmill.
• Assessed learning transfer from free flight to the VE.
• Recorded activity of mushroom body extrinsic neurons over days during learning tasks within the VE.

Main Results:

• Honeybees demonstrated meaningful perception of VE stimuli, transferring learned information from free flight.
• Mushroom body extrinsic neurons showed altered activity patterns specific to rewarded and unrewarded visual stimuli during learning.
• Neural activity changes correlated with learning outcomes in the VE.

Conclusions:

• The developed VE effectively facilitates the study of learning in honeybees while allowing for neural recordings.
• Mushroom body extrinsic neurons are implicated in the neural mechanisms of operant learning in honeybees.