Identify the letter of the choice that best completes the statement or answers the question.
In bright light, the iris __________ and the pupil __________ to control the amount of light entering the eye.
The pain-killing effects of acupuncture may be related to
Information picked up by the body's receptor cells is termed
The function of the lens is to
Hearing aids are of no use to an individual with __________ deafness.
Information processed below the normal level of awareness is called
The idea that the amount of change in a stimulus necessary to produce a JND is a constant proportion of the stimulus intensity is called
Neural circuits of many sensory systems
A researcher presents two lights of varying brightness to a subject who is asked to respond "same" or "different" by comparing their intensities. The researcher is seeking the
Seeing out of the corner of your eye, often important in sports activities and driving, is called
Brain cells that analyze incoming sensory information into lines, angles, shading, and movement are called
Which would represent the greatest loss to a professional wine taster or chef?
Photoreceptors are the __________ sensitive cells that line the retina.
It is now believed that subliminal advertising
In order for a frog's visual "bug-detector" to work, the bug must be
A visual defect known as astigmatism is the result of
Which sensory receptor is found in greatest numbers in the skin?
Frequency is to __________ as amplitude is to __________.
Limen refers to
The process where the lens of the eye changes shape is called
Hearing loss caused when the eardrums or ossicles are damaged by disease or injury is called
The incoming flow of information from our sensory systems is referred to as
What sensory organs responsible for balance are also related to motion sickness?
The cones of the retina
The organ of hearing, where sensitive cells respond to auditory stimuli, is known as the
Myopia is the condition of the eyes in which the person cannot
The iris controls the
Brain cells that analyze incoming sensory information into lines, angles, shading and movement are called
The psychological dimension corresponding to the amplitude of light waves is
Sense receptors are biological transducers, which means that they
Airborne chemical signals which greatly affect mating, sexual behavior, and territorial marking among animals are called
In the eye, focusing is accomplished by
Which theory of hearing explains the perception of higher sounds?
Which theory of color vision is correct?
Visual acuity is best when
Skin mapping indicates that
When an image is stabilized on the retina, after a brief period of time the image
Visual perception is ultimately a function of the
The part of the eye where the optic nerve leaves the eye is called the
The point at which a change in sensory stimulation is detected is called the
Night vision is mainly due to an increase in
The vestibular sense helps keep us from
The minimum amount of energy needed for a sensation to occur is called
The electromagnetic spectrum includes visible light, infrared and ultraviolet light, radio waves, and
Which of the following is a skin sensation?
Taste buds sensitive to sweet substances are found primarily on the __________ of the tongue.
The stimuli for audition are
The __________ theory explains that hearing high or low tones depends upon which area of the cochlea is most strongly stimulated.
Kinesthetic sensation results from
The stapes is attached to a second membrane, or drumhead, called the __________. As this moves back and forth, it makes waves in a fluid within the __________.
The conversion of electromagnetic energy into a neural impulse involves
The three auditory ossicles are the malleus, incus, and the
The amount of change necessary in a given stimulus to produce a just noticeable difference is a constant proportion of the original stimulus. This defines
Sense organs in the joints and muscles contribute to our __________ sense.
Humans respond to different wavelengths of light by experiencing differing
The part of the eye that focuses the image is called the
The scientific term for farsightedness is
Olfaction is another name for the sense of
The three small bones of the inner ear are called the
That humans are not visually sensitive to ultraviolet radiation suggests that sensory systems function as
Which of the following body areas is most sensitive to pain?
Taste buds are mainly located
According to Weber's Law, if two light bulbs must go out in a room in which twenty are burning to make the room noticeably dimmer, then a room in which forty are burning will become noticeably dimmer when __________ bulbs go out.
The most widely accepted explanation for motion sickness is provided by
Sensory adaptation refers to a decrease in sensory response that accompanies
In the auditory system, the first anatomical structure to respond to the sound wave is/are the
The ringing sensation following exposure to loud sounds is called
Messages from the body's pain warning system
That you do not hear the traffic outside your psychology class because you are engrossed in the lecture is a good example of
The __________ theory explains how sounds up to 4000 hertz reach the brain.
The final step (within the ear) required to convert vibrations into sound sensations is movement of the
A system is developed where a television camera produces an "image" of touch points applied to the back of a blind person. Such a system involves
When you were in seventh grade, you had to get glasses because you could not see the board at school. Your vision problem is called
A popular theory of olfaction which states that odors are related to the shapes of chemical molecules is the __________ theory.
Which theory of hearing explains the perception of lower sounds?
Film is to camera as __________ is to eye.
New mothers who are emotionally depressed take longer than non-depressed women to recognize pictures related to pregnancy, birth, and babies. This is an example of
One of the characteristics that all sensory systems have in common is
A "silent" dog whistle takes advantage of a characteristic of sensory systems known as
Skin senses, kinesthetic senses, and vestibular senses comprise which sense system?
Melzack and Wall's theory that some pain messages can block other pain messages is called
The theory of color vision which states that the visual system analyzes information into "either-or" messages is the __________ theory.
__________ is concerned with relating changes in physical stimuli to corresponding psychological sensations.
Black and white vision with greatest sensitivity under low levels of illumination describes the function of
The fact that we see negative afterimages supports which theory of color vision?
One of the more touch-sensitive areas of the human body is the
Unpleasant stimuli may raise the threshold for recognition. This phenomenon is called
After a musical concert that you enjoyed without distraction, a companion complains that she heard little of the music due to frequent shuffling and throat-clearing in the audience. The difference in your experience and hers is related to
Sensory adaptation is normally most rapid for the sense of
Visual problems such as nearsightedness, farsightedness, and astigmatism are the result of
The external, or visible, part of the ear is called the
Localization of function means that
The cones of the retina
The sensation you experience ultimately depends on which of the following?
The frequency of a sound determines its
Trichromatic theory states that there are three kinds of __________ in the eye.