Sensation: Vision and Hearing

Front

What are cones in the eye responsible for?

Back

Cones are photoreceptor cells in the retina that are responsible for color vision.

Front

What is the absolute threshold for human vision?

Back

The absolute threshold for human vision is the smallest amount of light that can be detected, such as seeing a candle flame from 30 miles away on a clear night.

Front

What is the function of the optic nerve?

Back

The optic nerve carries visual information from the retina to the brain.

Front

What is sensory adaptation?

Back

Sensory adaptation is the process by which our sensitivity to a constant stimulus decreases over time, such as noticing a change in taste after eating fruit for a while.

Front

What is transduction in the context of hearing?

Back

Transduction is the process by which the ears convert sound waves into neural impulses.

Front

What are the two main types of photoreceptors in the human eye?

Back

The two main types of photoreceptors are rods and cones.

Front

What is the role of rods in vision?

Back

Rods are photoreceptor cells that are responsible for vision in low light conditions and do not detect color.

Front

What is the difference threshold?

Back

The difference threshold is the minimum difference in stimulation that a person can detect 50% of the time.

Front

What is the function of the cornea?

Back

The cornea is the transparent front part of the eye that helps to focus light onto the retina.

Front

What is the lens of the eye responsible for?

Back

The lens of the eye changes shape to help focus light onto the retina.