Speaking of Psychology The future of brain-computer interfaces, with Nicholas Hatsopoulos, PhD
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Jul 10, 2024 
Nicholas Hatsopoulos, an expert in brain-computer interfaces, discusses the future of BCIs, practical challenges, decoding brain movements, internet access via thoughts, tongue movements in the cortex, brain plasticity with prosthetic swallowing devices, and the potential of BCIs for augmenting human abilities.
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How BCIs Work
- Brain-computer interfaces (BCIs) record electrical signals from neurons, amplify them, and send them to a computer.
- The computer decodes these signals into actions, like moving a cursor or robotic arm.
Two Types of BCIs
- Biomimetic BCIs try to mimic natural biological movement, allowing immediate control for users.
- Non-biomimetic BCIs require users to learn through practice, similar to how infants learn to control their limbs.
Challenges of BCIs
- A major challenge in developing BCIs is creating durable, reliable electrodes that can last for long periods.
- The brain's immune response can cause implanted devices to degrade over time.