eud noted patients frequently repressing concerns with disturbing sexual experiences. He hypothesized that anxiety was a consequence of the repressed energy (libido) attached to sexuality; the repressed energy found expression in various symptoms that served as psychology defense mechanism. Freud and followers later extended the concept of anxiety to include feelings of fear, guilt, and shame consequent to fantasies of aggression and hostility and to fear of loneliness caused by separation from a person on whom the sufferer is dependent.
Freud's free-association technique provided him with a tool for studying the meanings of dreams, slips of the tongue, forgetfulness, and other mistakes and errors in everyday life. From these, he was led to a new conception of the stru
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