If You Could Monitor the Activity from the Photoreceptors of Rods

question 85

Multiple Choice

If you could monitor the activity from the photoreceptors of rods and cones in the retina during a dream, would you expect these cells to be producing electrical signals? Why?

• A) No, because rods and cones only convert light energy into electrical signals.
• B) Yes, because the rods and cones are reproducing images that are then sent to the brain.
• C) Yes, because our eyes move during sleep, and this stimulates the rods and cones.
• D) No, because rods and cones never produce electrical signals.

---

Definitions:

Discriminant Validity

The degree to which a concept or measurement is genuinely distinct from other concepts or measurements within the same model or study.

Researcher

A person who conducts systematic investigations into and study of materials and sources in order to establish facts and reach new conclusions.

Mode

The value that appears most frequently in a given set of data, commonly used in statistics to describe central tendency.

Median

The middle value in a set of data when arranged in ascending or descending order, or the average of the two middle values if the set has an even number of values.