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____________ are the raw data experience, based on the activation of certain receptors located in the various sensory organs.


Suppose Maria is painting while the sun is setting; once she notices that the room is getting darker, she decides to call it quits for the day. This example illustrates the role of ____________.

A just-noticeable difference

The lowest stimulus 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

When Ann went to her doctor, he gave her a hearing test. During the test, the doctor presented tones to Ann through earphones. The tones started at a low intensity and then became louder. The doctor asked Ann to raise her hand whenever she started to hear a sound. The doctor was testing Ann's ________.

Absolute threshold

The process by which unchanging information from the sense of taste, touch, smell, and vision is 'ignored' by the sensory receptor cells themselves is called ____________.

Sensory adaption

our eyes don't adapt completely to a repeated visual stimulus because

Eye movement called microsaccades cause the stimulus image to vibrate slightly on the retina

The shortest wavelengths that we can see are experienced as _______ colors.


The wavelengths of the light reaching your eyes determines in part what ___________ you see.


Which part of the eye is a muscle that regulates the size of the pupil?


The amount of light entering the eye is controlled by the _________.


Each retina of the eye has about ________ million rods.


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

We are seeing primarily with the rods

Sound waves are simply _____________.

The vibration of the molecules of the air surrounding us

Which of the following describes what happens if you trace an auditory stimulus from the time it first reaches the ear until it arrives at the brain

The outermost part of the ear (pinna) gathers sound waves and funnels them down the auditory canal striking the eardrum

What is the hammer, anvil, and stirrup?

Tiny bones located in the middle ear

A person can have between ___________ taste buds in his or her mouth.

500 to 10,000

Our sense of taste works when food molecules are _________.

Dissolved in saliva in our mouths

What is the approximate life expectancy of individual taste receptor cells?

10-14 days

The cilia in the nasal cavity act in a manner similar to taste buds in that they ___________.

Contain receptor sites that are stimulated by different molecules

Which is the best description of the kinesthetic sense?

It has to do with the location of body parts in relation to the ground and to each other

Which s the best description of the vestibular senses?

They have to do with movement and body position

The gate-control theory of pain suggests that ____________.

The pain signal must pass through a kind of 'gate' located in the spinal cord

Psychology aspects of pain perception can influence the release of the neurotransmitter called _________, the body's natural version of morphine.


Closing your eyes and then touching your nose with your forefinger most accurately illustrates which of the following?

Kinesthetic sense

Perception is the ___________.

Process by which people take all the sensations they experience at an given moment and interpret them in some meaningful fashion

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