Share Psych 120 Perception and Sensation
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What is the process of detecting and encoding stimulus energies from the environment?
Sensation
Which process organizes and interprets sensory input?
Perception
Which part of the brain is primarily responsible for processing visual information?
Occipital lobe
Which sense does not go through the thalamus before reaching the cortex?
Smell
What is the minimum amount of stimulation needed to detect a stimulus 50% of the time?
Absolute treshold
What is the smallest difference between two stimuli that can be reliably detected?
Difference threshold
Which principle states that the just noticable difference is a constant proportion of the original stimulus?
Weber's Law
What is it called when you stop noticing a stimulus after repeated exposure?
Sensory adaptation
What is it called when we fail to notice an object because our attention is focused elsewhere?
Inattentional blindness
Which of the following describes a situation where someone fails to notice a change in the their environment?
Change blindness
What is the ability to focus on a specific stimulus while ignoring others?
Selective attention
A person with damage to their visual cortex can still react to visual stimuli without consciously perceiving them. What is this phenomenon called?
Blindsight
Which theory explains how we detect stimuli amid background noise?
Signal detection theory
Describe response bias?
Responding to a stimulus based on expectations
Why might inattentional blindness be dangerous while driving?
Drivers may fail to see something while focusing on something else.
Why do emergency vehicle sirens need to be loud?
To exceed the absolute threshold of hearing
