Megan Marchand

the transparent structure behind the pupil that changes shape to help focus images

• Lens

• Iris

• Retina

• Rods

the ring of muscle tissue that forms the colored portion of the eye

• Rods

• Iris

• Lens

• Retina

the light-sensitive inner surface of the eye that contains the receptor rods and cones

• Lens

• Rods

• Iris

• Retina

retinal receptors that detect black, white, and shades of gray

• Rods

• Retina

• Iris

• Lens

the wave’s height. It is measured from the peak of the wave to the trough of the wave.

• Transduction

• Wavelength

• Amplitude

• sensory adaptation

the distance from the peak of one light or sound wave to the next peak

• wavelength

• transduction

• sensory adaptation

• amplitude

The conversion of one form of energy into another. In sensation, this is the transformation of sights, sounds, and smells into neural impulses our brain can interpret.

• Transduction

• sensory adaptation

• wavelength

• amplitude

diminished sensitivity as a consequence of constant stimulation. Ex. hot tub no longer feeling hot because you have gotten “used” to it.

• wavelength

• amplitude

• transduction

• sensory adaptation

below one’s absolute threshold for conscious awareness.

• subliminal

• signal deduction theory

• absolute threshold

• psychophysics

predicts how and when we detect the presence of a faint stimulus (signal) amid background stimulation (noise).

• subliminal

• signal detection theory

• absolute threshold

• psychophysics