Psychologists regard as the "fear of fear." panic attack

The correct answer would be, Agoraphobia. Psychologists regard Agoraphobia as the Fear of Fear.

Explanation:

Agoraphobia is a type of Anxiety Disorder. In this type of disorder, a person feels fear of being trapped, and helpless. The person is frightened of going to the places where he might feel fear. He avoids those situation that may cause him feel fear. This fear of fear restricts him to go to certain places and avoid certain situations just because he is feared of the fear of engaging into that situations. So in psychological terms, this is called Agoraphobia.

For example, if a person feels fear of going to the dark places, he would avoid going to those places, just because by feeling fear of going there and feeling fear actually.