What kind of stimuli do complex cells in the visual cortex primarily respond to?

Complex cells in the visual cortex are primarily responsive to motion stimuli. These cells are characterized by their ability to detect specific orientations of visual stimuli and are particularly sensitive to the direction of motion. While simple cells respond to static stimuli such as edges and bars of light, complex cells integrate information over a larger area and can process changes in movement, making them crucial for perceiving movement in our visual field.

The sensitivity of complex cells to motion is important for tasks such as tracking moving objects, recognizing actions, and contributing to our overall understanding of dynamic scenes. This ability to respond to motion rather than static images distinguishes them from other types of neurons in the visual pathway. Their function is essential in how we interpret the ever-changing environment around us.