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In the diagram, the function y(t) = ymsin( t) is plotted as a solid curve.The other three curves have the form y(t) = ymsin( t + ) , where is between - /2 and + /2.Rank the curves according to the value of , from the most negative to the most positive.
Difference Threshold
The minimum difference in stimulation that a person can detect 50% of the time, also known as the "just noticeable difference."
Retina
The light-sensitive layer of tissue at the back of the inner eye, which converts light images into nerve signals sent to the brain.
Sensory Receptors
Specialized cells or structures in the body that respond to external stimuli, such as light, sound, touch, or chemicals, and send signals to the brain.
Sensation
The method through which our sense organs and nervous system detect and depict energy forms of stimuli from the surroundings.
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