Several recent studies deepen understanding of brain-immune system links and neural computation mechanisms. A Nature Neuroscience report reveals brain anticipatory signals can activate immune defenses absent infection, redefining neuroimmune communication. Another study elucidates dopaminergic modulation as a dynamic process influencing decision confidence and variability. Additionally, research exploring hippocampal interneuron activity via voltage imaging advances comprehension of memory encoding inhibition dynamics, underscoring complex neuronal network interactions.