Sensation and Perception Quiz

What is sensation?

• The detection of changes in the environment

• The process by which sensory receptors receive stimulus energies from the environment

• The interpretation of sensory information

• The process of converting physical signals into neural signals

Which of the following is an example of transduction?

• Tasting food

• Light entering the eye and being converted into neural activity

• Hearing a loud noise and covering your ears

• Blinking in response to bright light

What is the absolute threshold for hearing?

• The sound of a jet engine

• A watch ticking 20 feet away

• A drop of perfume in a room

• The sound of a leaf falling

Which of these best describes subliminal perception?

• Sensory stimuli that are detected 100% of the time

• Sensory stimuli that are below the level of conscious awareness

• The brain ignoring unimportant stimuli

• The highest level of sensory perception

Sensory adaptation occurs when:

• The brain pays less attention to constant, unchanging stimuli

• Sensory receptors become less sensitive to unchanging stimuli

• Sensory input increases over time

• The stimulus is perceived more intensely

What determines the brightness of light?

• The wavelength of light

• The amplitude of light waves

• The frequency of light waves

• The speed of light

The process of changing the curvature of the lens to focus on objects is called:

• Transduction

• Visual accommodation

• Retinal adjustment

• Photoreception

The blind spot in the eye occurs where:

• The retina meets the lens

• The optic nerve leaves the eye

• Rods and cones are concentrated

• The pupil closes

Rods are primarily responsible for:

• Color vision

• Vision in bright light

• Peripheral and night vision

• Sharp, detailed vision

Which of the following is part of the opponent-process theory?

• Red and green cones work together to detect all colors

• Some visual neurons are stimulated by light of one color and inhibited by light of another color

• Colors are perceived based on combinations of three cones

• Color vision depends solely on rods and cones