This reaction also happens when your baby is startled by a sudden movement, bright light, or loud sound. ‌This is the Moro reflex. It was first described by Ernst Moro in 1918. It can be seen ...

Not the brain, but only the spinal cord is involved in reflex actions, which occur fast and automatically. For example, the pupils of your eyes change accordingly to the amount of light.

The photic sneeze reflex causes a person to sneeze in response to sudden exposure to bright light, such as when going outside into the direct sun. Another name for the photic sneeze reflex is ...

The red reflex occurs when light is reflected off the retina through the pupil. The retina absorbs most light, but the small amount reflected off it appears reddish-orange. The red reflex is what ...

Photic sneeze reflex is a condition triggered by exposure to bright light. Around 35% of the population has this reflex. Sneezing is a natural response that removes irritants from your nose.