could be depression, Avoidant Personality Disorder, Antisocial Personality Disorder, Schizoid Personality Disorder, Major Depressive Disorder, paranoid Personality Disorder, etc. . .

Most people think that serial killers are psychotic with a psychopath background. Modern medicine also thinks like that. Some of them were cataloged with Paranoid Personality Disorder, Schizoid Personality Disorder or Schizotypal Personality Disorder.

John E. Gedo has written:

'The biology of clinical encounters' -- subject(s): Psychoanalysis, Psychobiology

'The languages of psychoanalysis' -- subject(s): Psychotherapist and patient, Semiotics, Psychoanalysis, Interpersonal communication

'Psychoanalysis and Is Discontents'

'Beyond interpretation' -- subject(s): Case studies, Psychoanalysis, Psychoanalytic Theory

'Advances in clinical psychoanalysis' -- subject(s): Psychoanalysis, Psychoanalytic Therapy

'The Evolution of Psychoanalysis'

'Psychoanalysis and its discontents' -- subject(s): Psychoanalysis

'Psychoanalysis as Biological Science'

She always kept to herself and avoided close relationships, displaying schizoid tendencies in her behavior.

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