This is a term invented by Sigmund Freud in order to conceptualize the anxiety located within neurosis, whose manifestations take the form of expectant anxiety or anxious expectation (a feeling of danger and catastrophic thinking), anxiety attack (suffocation, heart palpitations, tachycardia, sweating, vertigo) or phobias (agoraphobia; zoophobia). Unlike realistic anxiety, which can be considered a rational and understandable reaction to the perception of external danger, neurotic anxiety is the result of instinctual drives and unconscious desire, in the sense that as its etiology, for Freud, refers to frustrated sexual practices (actual neuroses) or to an unconscious psychic conflict that affects the ego (psychoneuroses)
