1. Human Interaction

2. How do people get information? Vision – 55MB/sec Audio – 64 KB/sec Touch – 400 B/sec Taste – Lower

3. How do people express information? Audio Speech Muscle movement – Dexterity Muscle Memory

4. Vision

5. Lens Iris Retina

6. Iris Retina

7. Iris Retina – 64 levels 6 bits

9. Macula/ Fovea Periphery

10. Cones (color) Rods (gray)

11. Cones (Red 64% Green 33% Blue 3%) Rods (gray) 20 Rods / 1 Cone

13. Cones (Red 64% Green 33% Blue 3%) Rods (gray) 20 Rods / 1 Cone

17. Saccade = 200 msecs 5 / sec

18. Nature of the Macula Get a section of text Focus on one word Try to read surrounding words – WITHOUT MOVING YOUR EYES

19. Periphery/Macula Macula – Careful close study – Very slow Small window 5 times / second – Color Periphery – Gray and blurry – Fast targeting If you must find things by reading and study – Macula / Saccade – Very Slow If you can find things with the periphery – Gray, Blurry – Very Fast

20. Lens Iris Retina Macula/ Fovea Periphery

21. Buy play tickets (tasks) 1.What shows are playing? 2.What shows are available near where I live? 3.What do they cost?

25. 3D Perception Occlusion Retinal Disparity Kinetic Depth effect

26. Audio Human hearing – 20Hz to 18Khz Best hearing – 1Khz to 5Khz Speech – 500 Hz to 3Khz

27. Why use audio? Attention – Eyes free Form factor Energy Express what you cannot currently see

28. Touch/Tactile Vibration and skin deformation Hairy skin – Vibration sensors at the base of each hair Glabrous skin – No hair – Ridges with vibration sensors Vibration up to 400 Hz – 2mm spatial resolution on fingers Temperature – Heat dissipation Pain

29. Human Expression Audio Keyboard Pointing Object movement

30. Audio Speech – 125-150 Words per minute – Reference the unseen – Association with shared experience – Ambiguity – Recognition accuracy – Privacy Non speech

31. Keyboard 50-70 Words per minute Ideographic Languages

32. Pointing Human movement – Muscle size / body part mass – Speed of movement – Fatigue