Psychology Glossary: Y Index
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Y Chromosome Definition
The sex chromosome found only in males...
Young-Helmholtz Trichromatic Theory of Color Vision Definition
According to this theory of color vision, there are three receptors in the retina that are responsible for the perception of color...
Yerkes-Dodson Law Definition
Have you ever noticed that you sometimes perform better when you are a little bit nervous? Learn more about what is known as the Yerkes-Dodson Law.