Sensation and Perception

What is stimulus?

• the aspect of or change in the environment to which an organism responds is called a stimulus.

• occurs when a receptor is activated

• organization of sensory information into meaningful experiences

• Process by which becoming less sensitive to unchanging stimuli

What is sensation?

• A change in environment which causes an organism to respond

• the organization of sensory information into meaningful experiences

• what occurs when a stimulus activates a receptor

• becoming less sensitive to unchanging stimuli. 

What is perception?

• the organization of sensory information into meaningful experiences

• what occurs when a stimulus activates a receptor

• Change in environment that causes an organism to respond

• Becoming less sensitive to unchanging stimuli. 

What is sensory Adaptation?

• An organisms response to a change in environment

• what occurs when a stimulus activates a receptor

• the organization of sensory information into meaningful experiences

• Becoming less sensitive to unchanging stimuli. 

How is a stimulus measured?

• With a test similar to an EEG

• It can be measured in size, duration, intensity or wavelength

• It can be measured by observation

A sensation may be combined with other sensations and your past experience to yield a perception.

• True

• False

Which of the following is the study of sensory experiences?

• Oneirology

• Psychophysics

• Psychopathology

• Neonatology

The weakest amount of stimulus that can be sensed is the difference threshold

• True

• False

The minimum amount of difference that can be distinguished between two stimuli half of the time is Difference Threshold

• True

• False

Brain Break! Draw how you feel today