Topic: posterior Broca’s area

Speech perception and production are deeply interconnected, yet the cellular mechanisms that link them are unknown. Here, we recorded large-scale single-neuron activity from the human brain while participants performed a delayed sentence repetition task, which included listening to a sentence, waiting a short delay, and then speaking. Although the precentral gyrus (PrCG) is traditionally thought to be specific for motor control, we observed neuronal responses in single cortical columns that tiled across listening, delay, initiation, and speaking phases. In contrast, neurons in the posterior Br