Which physiological change is associated with both the aging process in the nervous system and sensory system?

The correct choice highlights a significant aspect of the aging process, specifically concerning the nervous and sensory systems. As individuals age, it is common for there to be a decline in both memory and processing speed. This decline can manifest as difficulties in recalling information, reduced ability to learn new concepts, and slower response times to stimuli.

This physiological change is a well-documented phenomenon as the brain undergoes various changes, including a decrease in the number of neurons and changes in neurotransmitter levels. These factors collectively contribute to the observed cognitive decline. In the sensory system, older adults may experience diminished sensory perception, such as reduced visual acuity and hearing ability, which further impacts processing speed and memory recall.

Recognizing these changes is crucial in providing appropriate care for older adults, as it affects their daily living and the ability to navigate their environment safely and effectively. Thus, the decline in memory and processing speed accurately represents the physiological changes associated with aging in the nervous and sensory systems.