### Stage 1: Extraction of Technical or Complex Terms
Here are the extracted technical or complex terms from the provided text, along with definitions:
1. **Cortex** (Noun) - The outer layer of an organ, especially the brain, involved in various brain functions like thinking and movement.
- "And this isn't a metaphorical claim. You can see this with brain imaging, even with an untrained eye."
2. **Motor Cortex** (Noun) - A specific area of