Aaron's Home Was Destroyed in a Tornado a Week Ago

question 67

Multiple Choice

Aaron's home was destroyed in a tornado a week ago.Right after the tornado, Aaron had difficulty sleeping and had frequent nightmares about tornadoes when he did go to sleep.He also experienced difficulty concentrating at work and becomes visibly nervous whenever he saw the wind blowing harder than a breeze.Three weeks after the tornado, Aaron appears to be settling down and is sleeping better and able to function at work like before the tornado.Aaron suffered from a(n)

• A)post-traumatic stress disorder.
• B)generalized anxiety disorder.
• C)panic disorder.
• D)acute stress disorder.

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Definitions:

Bottom-Up Processing

Information processing in which individual components or bits of data are combined until a complete perception is formed.

Top-Down Processing

Information processing in which previous experience and conceptual knowledge are applied to recognize the whole of a perception and thus easily identify the simpler elements of that whole.

Signal Detection

A technique used to identify the presence or absence of a stimulus amidst background noise.

Feature Detection

The process by which the brain identifies specific elements or patterns, such as lines or edges, in a visual stimulus.