Respond to thefollowing questions in 75 to 150 words each.

1. Differentiate between sensation and perception. Explain theimportance of separating these concepts.

1. Identify the biological factors that influence sensation andperception.

1. As we age or incur visual impairment, we may need brighter lightwhen reading. Explain why this is the case.

1. You are shown a picture of an elephant. Explain how that stimulusis processed from the retina to the visual cortex of the brain.