Question

late-adulthood cognition appears to decline because:
the senses are just as sharp as they were previously.
the senses perceive changes in subtle cues in the environment.
the senses perceive all stimuli equally fully.
information does not cross the sensory threshold.

Explanation:

To determine why late - adulthood cognition appears to decline, we analyze each option:

• Option 1: If the senses were as sharp as before, there would be no reason for cognition to decline due to sensory issues. So this is incorrect.
• Option 2: Perceiving subtle cues would likely support rather than hinder cognition, so this is not a cause of decline.
• Option 3: Perceiving all stimuli fully would also not lead to cognitive decline.
• Option 4: In late adulthood, sensory abilities often decline. If information does not cross the sensory threshold (meaning the senses can't detect it), then the brain doesn't receive the necessary input for cognitive processes, which can lead to a decline in cognition.

Answer:

D. information does not cross the sensory threshold.