It began, of course, with Freud. Psychoanalysis refers both to a theory of how the mind works and a treatment modality. In recent years, both have yielded to more research-driven approaches, but psychoanalysis is still a thriving field and deals with subjective experience in ways that other therapies sometimes do not..
Belief in the such hallmarks of Freudian thinking as the primacy of the unconscious fantasy, sexual desires (libido, penis envy, Oedipal complex), and dreams has wavered. But Freud also identified such basic mental maneuvers as transference, projection, and defensiveness, and demonstrated how they distort functioning. As a treatment based on extended self-exploration, psychoanalysis has evolved beyond the silent-shrink stereotype.
Neuropsychoanalysis is an up-and-coming subfield that aims to wed the insights of Freudian psychology and its emphasis on subjective experience with neuroscientific findings about brain processes. As new technologies reveal ever more precise brain activity, neuropsychoanalysis seeks to identify the neurobiologic underpinnings of emotion, fantasy, and the layers of the unconscious.