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Visual Stimuli definitions

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  • Visible Light Spectrum
    A narrow range of electromagnetic waves detectable by humans, spanning from reds and oranges to blues and purples.
  • Wavelength
    The distance between wave crests, influencing the perceived color from red (long) to blue (short).
  • Amplitude
    The height of a light wave, determining how bright or dim a color appears to the observer.
  • Hue
    A quality of color perception directly linked to the wavelength of incoming light.
  • Brightness
    A perceptual quality reflecting how much light is emitted or reflected, shaped by wave amplitude.
  • Complexity
    The range or number of different wavelengths present, affecting the purity of perceived color.
  • Saturation
    A measure of color vividness or purity, with higher values for single wavelengths and lower for mixed ones.
  • Crest
    The peak or highest point of a light wave, used to measure wavelength.
  • Electromagnetic Spectrum
    The full range of light waves, most of which are invisible to humans except for a small segment.
  • Monochromatic
    A state where color appears nearly single-toned due to extremely low saturation.
  • Desaturation
    A reduction in color purity, resulting from the presence of multiple wavelengths.
  • Color Perception
    The process by which the brain interprets physical light properties as distinct colors.