When inputs were slightly lateralized, the model showed that each hemisphere stores the stronger contra- over a weaker ipsilateral input when WM capacity is reached. Remember from 2/ where I said the bilateral field advantage was seen as evidence for non-redundant, independent hemispheres?? 6/🧵

we modeled two redundant spiking bump attractor networks with inter-area connections and replicated the data if connections were tuned and weak. Furthermore, 🖥️model + 🐒data were in agreement that weak connections lead to private history attraction (serial dependence) in each hemisphere. 4/🧵

We first found that both hemispheres stored (bump-like FR in the figure) and guided behavior for the full visual field suggesting redundant hemispheres. Additionally, neural traces were only weakly correlated across hemispheres suggesting weak coordination between hemispheres... 3/🧵

How do prefrontal hemispheres support continuous spatial WM when visual inputs come strongly lateralized?🤔
Previous studies suggest:
1️⃣ Independent hemispheres:Larger capacity across hemifields (bilateral field advantage)?
2️⃣ Redundant hemispheres:Unilateral opto-disruption doesn’t impair behavior?2/🧵