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Your selections: Vision
Eye of the Tiger (Salamander)
Vision requires teamwork. Nerve cells in the retina communicate with one another to create optimal messages to send to the brain.
  • BrainFacts/SfN
What are hallucinations?
Hallucinations emerge when inner thoughts and expectations overpower sensory experience.
  • BrainFacts/SfN
Snakes on a Brain
Does this brain appear to be rotating? Rapid, involuntary eye movements paired with sharp contrast patterns in an image may cause the brain to perceive motion where there is none.
  • BrainFacts/SfN
Image of the Week: Dragonfly Eyes
Dragonflies hover smoothly in part thanks to information collected by their eyes. Knowing these insects' retinal circuitry helps scientists understand how neurons process spatial data.
  • BrainFacts/SfN
Image of the Week: Primate Photocreceptor Cones
Neurons in the eye turn light into electrical signals. How and where signals travel between these cells is thought to affect vision.
What does it mean to have synesthesia?
Synesthesia is a condition in which stimulation of one sense automatically evokes a perception in an unstimulated sense.
  • BrainFacts/SfN
Vision: It all Starts with Light
To be able to see anything, eyes first need to process light. Vision begins with light passing through the cornea.
  • BrainFacts/SfN
Vision: Processing Information
The moment light meets the retina, the process of sight begins. About 60 years ago, scientists discovered that each vision cell’s receptive field is activated when light hits a tiny region in the center of the field and inhibited when light hits the area surrounding the center.
  • BrainFacts/SfN
Studying Our Senses
During this lab activity, students will explore two types of sensory processes. First, they will investigate how one identifies different flavors. Then, they will explore the ways the brain interprets the visual images that reach the eye.
  • University of Pennsylvania
See All You Can See
An interactive website about the eye. Learn about the parts of the eye and eye safety, and try out some optical illusions.
  • National Eye Institute
Experiments on the Senses Designed for the Classroom
This site provides experiments on hearing, smell, taste, touch, and vision designed for students in primary and secondary school classrooms.
  • Center for Behavioral Neuroscience
Vision and Gene Therapy
An unexpected finding decades ago has helped create one of the first success stories for gene therapy and hope for vision restoration in people.
  • BrainFacts/SfN
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