What is the most likely cause of slower reaction time for everyday tasks and activities for an older individual?
A)The preliminary effects of Alzheimer's disease
B)Geriatric dysthymia
C)The pruning of unused neural connections
D)Dendritic loss and the slowing of synaptic speed

Question

Quizplus · Accepted Answer

Dendritic loss and the slowing of synaptic speed are common factors of cognitive aging that slow down reaction time in older individuals. As individuals age, their neurons gradually lose dendrites, which are crucial for transmitting information between neurons. Additionally, synaptic connections slow down which in turn impacts processing speed thereby causing slower reaction times. This can make everyday tasks that require quick thinking, such as driving or using a computer, more difficult for older individuals. While Alzheimer's disease and geriatric dysthymia are potential causes of cognitive decline and slower reaction times, they are not the most likely cause in the absence of other significant symptoms. Similarly, the pruning of unused neural connections is a normal part of the brain's development and is not typically a cause of slower reaction times in older adults.

What Is the Most Likely Cause of Slower Reaction Time