A decline in sensory responsiveness that occurs when a stimulus is unchanging or repetitive is called a the difference threshold. b psychophysics. c sensory adjustment. d sensory adaptation.

The correct answer is letter D

Sensory Adaptation is the reduction of our sensitivity to stimuli that do not change. Adaptation occurs after constant exposure to a stimulus, our nerve cells start firing less frequently.

Sensory adaptation is a decrease in attention to a stimulus that is not the object of conscious control.

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