Sensation and Perception

______ is the process that occurs when special receptors in the sense organs are activated

• Perception

• Emotion

• Cognition

• Sensation

The point at which a person can detect a stimulus 50 percent of the time it is presented is called the ______.

• Absolute threshold

• range threshold

• difference threshold

• just-noticeable difference

The process of bringing meaning to the raw data your senses take in is called ________.

• perception

• sensation

• adaptation

• habituation

The lowest stimuli intensity required for detection is the ______ and the smallest noticeable difference between a standard stimulus intensity and another stimulus value is the ______.

• absolute threshold; just noticeable difference

• base value; just noticeable difference

• response criterion; sensory constant

• just noticeable difference; absolute threshold

Specialized forms of neurons that are triggered by light, vibrations, sounds, touch, or chemical substances are called ________.

• energy receptors

• bipolar cells

• ossicles

• sensory receptors

The amplitude of a wave determines the _________ of the light.

• color

• brightness

• hue

• saturation

What is the pupil of the eye?

• It is the white part of the eye.

• It is the colored part of the eye.

• It is the location of the visual receptors.

• It is the small opening in the center of the eye.

The place in the eye where the optic nerve meets is known as the ______.

• fovea

• blind spot

• optic chiasm

• optic nerve

It is difficult to distinguish between colors at night because ______.

• we are seeing primarily with the cones

• rods do not adapt to the dark

• we are seeing primarily with the rods

• we are used to seeing mostly with the fovea

Which of the following is true of cones?

• They respond to color.

• They are found mainly in the fovea

• They operate mainly in the daytime

• They are responsible for night vision