psychology a - unit 6: sensation and
perception Solution Guide_ Answered
Fall 2024.
lesson 25 - sensation
what is a sensory system? - a system within the body that detects information related to
one of the senses and transmits it to the brain
what are binocular depth cues? - visual clues within the environment that allow people
to understand space using two eyes
match each sensory system with the correct description. - sight : uses the eyes to take
in light information from the environment
hearing : uses the ears to receive sound waves from the environment
smell : uses the nose to take in chemical compounds from the air
taste : uses the tongue to respond to chemicals in substances
touch : uses receptor cells in the skin to respond to sensations
what is sensory adaptation? - changes in sensory system responses to match the
current environment
match each type of threshold with it's appropriate description. - terminal threshold : a
high level of sensation where people can no longer detect changes in the strength of
stimuli
absolute threshold : the lowest level of sensation that people can detect at least half of
the time
differential threshold : the lowest level of sensation that is needed for people to detect
changes in stimuli
which best describes the sense of hearing? - the ears receive sound waves and turn
them into signals to send to the brain
what best describes a terminal threshold? - a high level of sensation where detectable
changes in sensation can no longer occur
, gracie is watching television in her bedroom. she can hear the sound from the
television, but she thinks it is a little too quiet. she turns up the volume, but it is not
enough to be noticeable different. she turns it up a couple notches more and is able to
recognize the change in the level of volume.
what concept does this situation describe? - differential threshold
what need to happen when performing experiments to determine absolute thresholds
for the results to be considered accurate? - subjects needs to experience the sensation
at least half of the time
what are capabilities of the visual sensory system? select all that apply. - to recognize
levels of light
to determine depths of objects
to understand differences in color
what is a limitation to a human's visual sensory system? - only certain wavelengths of
light can be processed
what is sensation? - the body's process for receiving sensory information
what best describes the sense of taste? - the tongue responds to chemicals from foods
and other substances.
lesson 26 - perception
which steps are part of the perception process? select all that apply. - reaction
processing
categorization
match each gestalt principle of perception with its appropriate description. - proximity :
people group together objects that are close to each other
similarity : people group together objects that are similar to each other
figure-ground : people recognize objects by how they contrast with backgrounds
closure : people fill in gaps to view objects as whole instead of as segments
continuity : people view patterns in shapes and lines beyond where they end
lesson 27 - perception continued
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