Eeg

2 articles

EEG, ECoG, or Intracortical: How BCI Signal Acquisition Methods Trade Surgery for Precision

Brain-computer interfaces (BCIs) navigate a core trade-off between invasiveness and signal quality, with methods like EEG, ECoG, and intracortical arrays offering increasing precision at the cost of surgical intervention. The choice of BCI acquisition method hinges on balancing application requirements for signal fidelity against acceptable levels of surgical risk.

Juliana Campos·November 1, 2026

A human brain with glowing neural pathways connecting to futuristic interfaces and robotic limbs, illustrating the power of brain-computer interfaces.

Neuroscience & Mind

How Brain-Computer Interfaces Work: Four Steps From Brain Signal to Machine Action

Brain-computer interfaces (BCIs) create a direct communication channel between the brain and a machine, translating brain signals into commands for output devices. They operate through a four-step process: Measure, Interpret, Encode, and Deploy, with distinctions between invasive and non-invasive technologies.

Juliana Campos·July 1, 2026