Exciting research from Daniel English and team – “Reciprocal interactions between CA1 pyramidal and axo-axonic cells control sharp wave-ripple events“ – reveals how interactions between neurons in the hippocampus control key memory-related brain events called sharp wave-ripples. Using NeuroNexus Poly3 silicon probes, they discovered how specific inhibitory neurons, axo-axonic cells (AACs), shape these critical activities. By manipulating AACs, researchers showed their essential role in regulating ripple strength and duration. This deepens our understanding of memory consolidation in the brain.