According to Freud, anxiety is the root of most if not all mental maladies and central to any understanding of the human mind: ‘There is no question that the problem of anxiety is … a riddle whose solution would be bound to throw a flood of light on our whole mental existence.’
LeDoux traces the modern centrality of anxiety in psychopathology to Freud’s foundational claim that anxiety is the root of mental disorder and the defining ‘something felt’ — objectless dread distinct from fear.
, Anxious: Using the Brain to Understand and Treat Fear and Anxiety, 2015thesis