Dataset for paper: Lateralisation of short- and long-term visual memories in an insect
Dataset for paper published in Proceedings of Royal Society B, May 2020
Training dataset contains the type of training (PR, PL, UPR, UPL, RUPL, PB, NTA, CSO, USO), trial number (1-10) and MaLER response of each ant (1/0).
Testing dataset contains the type of training (PR, PL, UPR, UPL, RUPL, PB, NTA, CSO, USO), time of test (10 min, 1 hour, 24 hours) and MaLER response of each ant (1/0).
The formation of memories within
the vertebrate brain is lateralised between hemispheres across multiple
modalities, however, in invertebrates evidence for lateralisation is restricted
to olfactory memories, primarily from social bees. Here we use a classical
conditioning paradigm with a visual conditioned stimulus to show that visual
memories are lateralised in the wood ant, Formica rufa. We show that a
brief contact between a sugar reward and either the right or left antenna
(reinforcement) is sufficient to produce a lateralised memory, even though the
visual cue is visible to both eyes throughout training and testing.
Reinforcement given to the right antenna induced short-term memories whereas
reinforcement given to the left antenna induced long-term memories. Thus,
short- and long-term visual memories are lateralised in wood ants. This extends
the modalities across which visual memories are lateralised in insects and
suggests that such memory lateralisation may have evolved multiple times,
possibly linked to the evolution of eusociality in the Hymenoptera.