Damage to the SCN eliminates the circadian rhythms of many behaviors, including sleep. This statement is:

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Multiple Choice

Damage to the SCN eliminates the circadian rhythms of many behaviors, including sleep. This statement is:

The suprachiasmatic nucleus is the brain’s master clock that sets 24-hour rhythms by receiving light cues and coordinating timing signals throughout the body. When the SCN is damaged, those circadian signals are disrupted, so the regular sleep-wake cycle and many other daily behaviors lose their normal rhythms. In such cases, animals can become arrhythmic in constant conditions, with sleep not tied to day and night, though sleep can still occur driven by homeostatic need. Because disrupting this central clock eliminates the circadian timing that organizes sleep, the statement is true.

The suprachiasmatic nucleus is the brain’s master clock that sets 24-hour rhythms by receiving light cues and coordinating timing signals throughout the body. When the SCN is damaged, those circadian signals are disrupted, so the regular sleep-wake cycle and many other daily behaviors lose their normal rhythms. In such cases, animals can become arrhythmic in constant conditions, with sleep not tied to day and night, though sleep can still occur driven by homeostatic need. Because disrupting this central clock eliminates the circadian timing that organizes sleep, the statement is true.

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