Presentation is loading. Please wait.

Presentation is loading. Please wait.

4. Visual Sensory Systems

Similar presentations


Presentation on theme: "4. Visual Sensory Systems"— Presentation transcript:

1 4. Visual Sensory Systems

2 THE STIMULUS: LIGHT

3 Brightness Hue

4

5 THE RECEPTOR SYSTEM: THE EYEBALL AND THE OPTIC NERVE

6 The Lens Iris Cornea

7 The Visual Receptor System
Location Acuity Sensitivity Color sensitivity Adaptation Differential wavelength sensitivity

8 SENSORY PROCESSING LIMITATIONS

9 Contrast Sensitivity Color Sensation Night Vision

10 BOTTOM-UP VS TOP-DOWN PROCESSING

11

12 Depth perception

13 Depth cues Bottom-up processing Accommodation Convergence
Binocular disparity (stereopsis)

14 Relative motion (motion parallax)
Top-down processing Linear perspective Relative size Interposition Light and shading Textural gradients Relative motion (motion parallax)

15

16 VISUAL SEARCH AND DETECTION
Where’s Wally?

17 Where’s Wally?

18 Eye Movement

19 Visual Search The Serial Search Model Conspicuity Expectancies
Conclusions

20 Detection Signal Detection Theory Sensitivity and Response Bias
Intervention higher sensitivity conservative

21

22 Absolute JUDGMENT


Download ppt "4. Visual Sensory Systems"

Similar presentations


Ads by Google