vision-09

vision-09 - Sensory Modalities 1 Vision – Electromagnetic...

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Unformatted text preview: Sensory Modalities 1. Vision – Electromagnetic energy (photons that travel in waves) 2. Audition (hearing) – pressure waves 3. Taste 4. Smell 5. Skin Senses (somesthetic) - Touch (tickle), pressure, temperature, pain 6. Kinesthesia – receptors in muscles and joints 7. Vestibular – head and body orientation * Proprioception (6 & 7): body position, movement, and balance. Chemical senses Reception, Transduction, Coding Stimulus → Receptors → Brain ( Transduction ) Physical event a) Assembled in organs b) Diffuse c) Selective d) Sensitive to particular range a) Coding b) Decoding “Perception” Transduction – Conversion of physical or chemical stimulus into electrochemical messages for transmission as nerve impulses to the brain. Spectrum of Electromagnetic Energy Characteristics of waves Wavelength (frequency) = color Amplitude = intensity (brightness) Wavelength (Hue) Different wavelengths of light result in different colors. 400 nm 700 nm Long wavelengths Short wavelengths Violet Indigo Blue Green Yellow Orange Red Intensity (Brightness) Blue color with varying levels of intensity.Blue color with varying levels of intensity....
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vision-09 - Sensory Modalities 1 Vision – Electromagnetic...

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