Topic: vector memories

In this webinar on spatial navigation circuits, three researchers—Ann Hermundstad, Ila Fiete, and Barbara Webb—discussed how diverse species solve navigation problems using specialized yet evolutionarily conserved brain structures. Hermundstad illustrated the fruit fly’s central complex, focusing on how hardwired circuit motifs (e.g., sinusoidal steering curves) enable rapid, flexible learning of goal-directed navigation. This framework combines internal heading representations with modifiable goal signals, leveraging activity-dependent plasticity to adapt to new environments. Fiete explored t

Central place foraging insects like the honeybee (Apis mellifera) are the masters of visual navigation of the insect world: They are able to reliably return to their nest under a wide range of visual conditions after only a few learning flights, (a feat so far unrivalled by any artificial system). Furthermore, they perform complex navigational tasks, such as ‘computing’ novel shortcuts between previously known but unrelated food sources, supporting claims about the existence of a ‘cognitive map’ in honeybees. This raises the question which internal representations of the world (and the animal’