Which of the following statements about the P pathway is TRUE?
A) The ganglion cells involved are quick to respond.
B) It relies on input from midget ganglion cells.
C) It is involved in the perception of illumination differences.
D) It is involved in the perception of rapid movement.

Question

Quizplus · Accepted Answer

The P pathway (parvocellular) relies on input from midget ganglion cells, which are small and have spatially and spectrally selective receptive fields. These cells respond slowly and have high spatial resolution, making them important for processing color and fine details. The M pathway (magnocellular), on the other hand, relies on input from parasol ganglion cells, which are larger and have broader receptive fields. These cells respond quickly and have low spatial resolution, making them important for processing motion and depth. Therefore, statement A is false, statement C may be partially true but is too limiting, and statement D is more applicable to the M pathway.

Which of the Following Statements About the P Pathway Is