Channel Count
Hardware
Total number of recording sites on a probe.
Channel count refers to the total number of independent recording sites (electrodes) on a neural probe. Each channel can simultaneously record from a different spatial location in the brain.
Why it matters: Channel count directly impacts your ability to sample neural populations. More channels provide better spatial coverage and the ability to track more neurons simultaneously.
Selection guidance:
- 1-32 channels: Single-unit recordings, small targeted studies
- 33-64 channels: Multi-neuron tracking, layer-specific recording
- 65-128 channels: Population dynamics, network activity patterns
- 129-384 channels: Dense sampling, high-resolution mapping
Trade-offs: Higher channel counts increase data storage requirements, processing complexity, and cost. Match your channel count to your experimental questions and data analysis capabilities.