Final answer:
Seasonal Affective Disorder (SAD) appears to respond favorably to high intensity light treatments.
Step-by-step explanation:
The disorder that appears to respond favorably to high intensity light treatments is Seasonal Affective Disorder (SAD). SAD is a type of depression that occurs during certain seasons, typically during the winter months when there is less natural sunlight. High intensity light treatments, such as light therapy or bright light exposure, have been found to be effective in reducing symptoms of SAD by mimicking natural sunlight and regulating the body's circadian rhythm.