Book Definition: Cells in the cortex that specialize in extracting certain features of a stimulus.

In Your Own Words

  • Feature Detectors: specialized nerve cells in the visual cortex that are in the brain and respond to specific characteristics of a visual stimulus.


  • They are involved in: detection of length, slant, color, boundary, etc.
  • You are able to know where you are by viewing your surroundings and seeing characteristics of your home, school, street, highway, etc.
  • Your feature detectors will be at work when you look at this image of flowers below. Because of different feature detectors assigned to your brain, you're able to see and recognize the lines forming flowers and the multi-colored arrangement.
  • external image images?q=tbn:ANd9GcSL5UrMOp7JKZNi3VLy30QoXKdAUJGTxid3TNWj5G3Q84s6KtYcTA