Psychology Glossary 113

Operant Extinction: When a behavior no longer produces predictable consequences, it returns to the level of occurrence it had before operant conditioning.

操作性消退：当一个行为不再产生可预测的结果时，它会回到操作性条件反射之前的发生水平。

Operational Definition: A definition of a variable or condition in terms of the specific operation or procedure used to determine its presence.

操作定义：根据确定变量或条件存在的特定操作或过程对变量或条件进行的定义。

Opponent-Process Theory: The theory that all color experiences arise from three systems, each of which includes two "opponent" elements (red versus green, blue versus yellow, and black versus white).

对立过程理论：这一理论认为所有颜色体验都来自三个系统，每个系统都包含两个“对立”元素(红对绿、蓝对黄、黑对白)。

Optic Nerve: The axons of the ganglion cells that carry information from the eye toward the brain.

视神经：神经节细胞的轴突，将信息从眼睛传送到大脑。