UE3 - Human Abilities 1 Basic Human Capabilities Why do we...

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1 Human Abilities
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2 Basic Human Capabilities Why do we have to learn this stuff? Do not change very rapidly Not like Moore’s law! Have limits, which are important to understand Our understanding of human capabilities does change Cognitive neuroscience Theories of color perception Effect of groups and situation on how we act and react Have important design considerations
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Human Abilities Our Senses How to sense changes/information Our Cognition How we process and interpret input Our Motor System How we can react to input and cognition 3
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4 Sight, hearing, touch important for the design of current Interfaces Smell, taste, other ??? Abilities and limitations constrain design space
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5 Sight, hearing, touch important for the design of current Interfaces Smell, taste, balance, pain, temperature, kinesthetic Abilities and limitations constrain design space
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Visual angle Total: 200 degrees High-res: ~15 degrees Rods 120 million! B/W 1000x more sensitive than cones Cones 6-7 million 64% red 32% green 2% blue
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Visual phenomena Color perception 7-8% males cannot distinguish red from green 0.4% of women Peripheral vision Largely movement oriented Stereopsis Monocular (size, interposition, perspective, paralax) Binocular (retinal disparity, accommodation) http://www.michaelbach.de/ot/
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Audition (Hearing) Capabilities (best-case scenario) pitch - frequency (20 - 20,000 Hz) loudness - amplitude (30 - 100dB) timbre - type of sound (lots of instruments) Often take for granted how good it is
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Touch Three main sensations handled by different types of receptors: Pressure (normal) Intense pressure (heat/pain) Temperature (hot/cold)
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This note was uploaded on 06/28/2009 for the course CS 352 taught by Professor Staff during the Winter '08 term at Oregon State.

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UE3 - Human Abilities 1 Basic Human Capabilities Why do we...

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