Sensation And Perception Homework Worksheet

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4 points
N. Lucas
Chapter 6: Sensation and Perception
Fill-in the missing terms for each of the items below.
1. The perceptual disorder in which a person has lost the ability to recognize familiar faces is
____________________________________.
2. The process by which we detect stimulus energies from the environment and encode it as neural
signals is ______________________________________. The process by which sensations are
organized and interpreted is _______________________________________.
3. The ____________________________________________
____________________________
refers to the minimum stimulation necessary for a stimulus to be detected _____________________
percent of the time.
4. The minimum difference required to distinguish two stimuli 50 percent of the time is called the
_________________________
_________________________. Another term for this value is the
_____________________________________
___________________________________
_____________________________________.
5. The principle that the difference threshold is not a constant amount, but a constant proportion, is known
as _______________________________
______________________________. The proportion
depends on the _______________________________________.
6. After constant exposure to an unchanging stimulus, the receptor cells of our senses begin to fire less
vigorously; this phenomenon is called ____________________________
_____________________.
7.
The distance from one light wave peak to the next is called the ______________________________.
The value determines the wave’s color, or _______________________________________.
8. The amount of energy in light waves, or ______________________________, determined by a wave’s
_____________________________, or height, influences the ___________________________ of a
light.
9. The process by which the lens changes shape to focus images is called ________________________

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