Which of the Following Statements Regarding the Precision of Locating

Question

Which of the following statements regarding the precision of locating a somatic stimulus is FALSE?
A)The precision is greater in areas of the body that have small,overlapping receptive fields than in areas with large,nonoverlapping receptive fields.
B)The precision is greater in the lips and fingers than on the back.
C)The precision is greater for the skin than for the internal organs.
D)Lateral inhibition of parallel afferent pathways increases the precision of locating a stimulus.
E)Convergence of afferent neurons onto common ascending pathways increases acuity.

Accepted Answer

Convergence of afferent neurons onto common ascending pathways actually decreases acuity because it combines inputs from multiple sources, making it harder to pinpoint the exact location of a stimulus. This is in contrast to lateral inhibition, which enhances the contrast between the stimulated area and its surroundings, thereby increasing precision.