Vision [Class Section Number] [Instructor Name]. Overview What is Vision? Contrast is Key Sensitivity to Light Reconstruction Color Integration.

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Presentation transcript:

Vision [Class Section Number] [Instructor Name]

Overview What is Vision? Contrast is Key Sensitivity to Light Reconstruction Color Integration

What is Vision? Light Photo- Receptor Photo- Activation Neural Activity Neural Activity Awareness

What is Vision? Photoreceptors Rods  Dim Light Cones  Bright Light  Fine Detail

Overview What is Vision? Contrast is Key Sensitivity to Light Reconstruction Color Integration

Contrast is Key Contrast  Lateral Inhibition

Contrast is Key: Lateral Inhibition

Overview What is vision? Contrast is Key Sensitivity to Light Reconstruction Color Integration

Sensitivity to Light  Rods Bleached  Cones Activated Movie Theater Afternoon Sun Movie Theater Afternoon Sun  Dark Adaptation  Contrast Gain

Overview What is Vision? Contrast is Key Sensitivity to Light Reconstruction Color Integration

Reconstruction Neurons Primary Visual Cortex Reflexive Eye Movements Thalamus

Reconstruction: Primary Visual Cortex Ventral Pathway “What Pathway”  Recognition Dorsal Pathway “Where and How Pathway”  Self & Object Motion

Reconstruction Binocular Advantage  Creates 3D Image  Volume  Distance  Size

Overview What is vision? Contrast is Key Sensitivity to Light Reconstruction Color Integration

Color: Photoreceptors Color varies by species. Quiz 2, 3, 4, 16  Chickens  Mantis Shrimp  Dogs  Humans Trichromacy Theory S-cones  M-cones  L-cones 

Color: Opponent Process Theory Opponent Process Theory of Color  Color Blindness  Cultural Effect Red Green Blue Yellow Black White

Color: Opponent Process Theory

Color: What Do You See?

Overview What is vision? Contrast is Key Sensitivity to Light Reconstruction Color Integration

Integration with Other Modalities Vestibulo-Ocular Reflex Synesthesia

Conclusion

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