What Is Psychophysics? Describe and Distinguish Between the Absolute Threshold

question 10

Essay

What is psychophysics? Describe and distinguish between the absolute threshold of a stimulus and the just noticeable difference (JND)by defining and giving an example of each.

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Definitions:

Visible Spectrum

The portion of the electromagnetic spectrum that can be detected by the human eye, typically encompassing wavelengths from approximately 380 to 750 nanometers.

Light Waves

Electromagnetic waves that are visible to the human eye, responsible for the phenomenon of sight; they vary in wavelength and are a component of the electromagnetic spectrum.

Cornea

The transparent front part of the eye that covers the iris, pupil, and anterior chamber, providing most of the eye's optical power.

Visible Spectrum

The portion of electromagnetic radiation that is visible to the human eye, typically encompassing wavelengths from about 380 to 750 nanometers.