For over a century, the legacy of Sigmund Freud has occupied a paradoxical space in the world of psychology. While his theories on the unconscious and the formative power of early relationships fundamentally shaped the cultural landscape of the 20th century, they have often been viewed with skepticism by the hard sciences, which frequently dismiss them as lacking the empirical rigor required for modern medical standards. However, a new scientific analysis published in the journal Entropy suggests that the divide between the couch and the laboratory may be narrower than previously assumed. The study proposes that several of Freud’s core observations about the human psyche share profound and surprising similarities with the "prediction paradigm," one of the most influential frameworks in contemporary neuroscience.
The research, led by Erik Stännicke, Bendik Hovet, and Line Indrevoll Stännicke alongside their colleagues, seeks to bridge the chasm between psychoanalytic tradition and cognitive neuropsychology. By mapping the subjective observations of psychoanalysts against the physiological models of the brain, the team suggests that these two disparate fields are effectively describing the same fundamental mechanism of human existence: the brain as a prediction machine.
The Brain as a Prediction Machine
At the heart of this modern neuroscientific approach is the concept of the brain as an active, anticipatory organ rather than a passive receiver of sensory input. According to the prediction paradigm, the brain does not merely sit and wait for the world to present information; it is constantly generating models of what it expects to happen next. This process involves the brain comparing its internal expectations against incoming sensory data. When a discrepancy arises—a "prediction error"—the brain must either update its internal model to account for the new information or take action to align the external world with its original expectations.
This continuous cycle of prediction, comparison, and correction is now believed by many researchers to be the engine behind human perception, decision-making, and emotional regulation. It is a biological imperative for maintaining stability. The researchers argue that while cognitive neuropsychology is currently observing this process at a physiological and mathematical level, psychoanalysis has been documenting the subjective experience of this exact phenomenon for over 130 years.
"For over 130 years, psychoanalysis has developed psychological theories about how predictions take place at a subjective level, which cognitive neuropsychology is now studying at a physiological level," the researchers note. By aligning these two perspectives, the study suggests that the "unconscious" processes Freud described are, in many ways, the subjective manifestation of the brain’s high-speed, automated predictive machinery.
Connecting Projection and Prediction
One of the most compelling points of intersection identified in the study is the relationship between the psychoanalytic concept of "projection" and the neuroscientific concept of "prediction." In the clinical setting, projection is a defense mechanism wherein an individual attributes their own feelings, motives, or qualities to another person. It is often described as a way of offloading uncomfortable internal realities onto the outside world.
From the perspective of the predictive brain, this is not merely a psychological defense but a cognitive strategy. When an individual attributes specific intentions or emotional states to others, they are essentially shaping their experience of the world to align with established internal expectations. As Erik Stännicke explains, "When we attribute qualities, intentions or feelings to other people, our brain shapes our experience of the world in line with established expectations."
Consider a person who has suffered repeated rejection in their past. Their brain, functioning as a prediction machine, has learned that "rejection is likely." Consequently, they may become hyper-sensitive to ambiguous social cues. A neutral facial expression or a brief, non-committal remark from a colleague might be immediately interpreted as an act of hostility. Because the brain anticipates rejection, it filters sensory input to confirm that prediction.
The researchers link this to the distinction between "perceptual inference" and "active inference." Perceptual inference is the process of updating one’s model when the world contradicts expectations. Active inference, however, involves changing one’s behavior to make the world conform to those expectations. If someone expects rejection, they may act in ways—perhaps by being overly defensive or withdrawn—that inadvertently provoke the very rejection they fear. This creates a self-fulfilling loop that reinforces the brain’s original, and perhaps inaccurate, prediction model.
Why the Brain Clings to Inaccurate Models
A central question addressed in the paper is why the brain would hold onto harmful or inaccurate expectations. If the goal of the predictive brain is to reduce error, why does it continue to rely on models that lead to suffering or maladaptive behavior?
The answer lies in the biological principle of homeostasis—the drive to maintain a stable internal state. In the predictive brain model, stability is often prioritized over accuracy. Familiarity, even when it is painful, provides a sense of certainty. When a person repeats a harmful relational pattern, they are essentially seeking the "predictable" outcome of their internal model.
"Psychoanalysts refer to the tendency in the mind to recreate familiar relational patterns, even when these are poorly adapted," says Stännicke. This helps explain the persistence of symptoms like internalized self-criticism or chronic paranoia. For a person who has internalized a critical voice, the world feels "stable" when that voice is active, because it matches their predictive model. Changing that model—even to a more positive one—introduces uncertainty, which the brain is biologically wired to avoid. Thus, symptoms that seem illogical to an outside observer are, to the predictive brain, essential components of a stable, albeit dysfunctional, system. This, the researchers argue, is why deep-seated psychological shifts often require significant time; the brain must be convinced that a new, more accurate model of the world is not only possible but stable enough to rely upon.
The Role of Procedural Memory in Psychotherapy
The study also highlights a crucial distinction between conscious belief and the "procedural memory" that governs how we actually navigate the world. A patient might intellectually understand that they are worthy of love or that others are not inherently hostile, yet they may still react with fear or suspicion in social situations. This is because these expectations are not merely held as conscious thoughts; they are embedded in procedural memory—the same type of memory that allows us to ride a bike or play an instrument without thinking.
Because these expectations are "proceduralized," they are expressed through habitual, relational ways of being. They are automatic and largely inaccessible to simple reasoning. This explains why traditional talk therapy, which focuses primarily on conscious insight, can sometimes fall short. If the maladaptive predictions are stored in the procedural systems that govern social interaction, the treatment must also be relational.
The researchers argue that the therapeutic relationship itself becomes the tool for change. Through a consistent, safe, and different kind of interaction with a therapist, the patient can have repeated experiences that challenge their entrenched predictions. Over time, these new experiences can help "update" the brain’s procedural models, allowing for a more flexible and accurate interpretation of social reality.
Toward a Holistic Psychology
By bringing these two fields together, Stännicke and his colleagues are not suggesting that Freud’s theories are universally correct, nor are they dismissing the complexities of modern neuroscience. Instead, they are proposing a synthesis that could revolutionize how mental health is understood.
Neuroscience offers a biological, mathematical framework that can anchor the subjective insights of psychoanalysis in physical reality. Conversely, psychoanalysis provides a rich, humanistic vocabulary for describing how those biological processes are lived, felt, and expressed through the complexities of human relationships.
"Bringing these two fields together can open up for a more holistic psychology, in which both neurological mechanisms and subjective experience are included," the researchers conclude. By validating the subjective experience of the patient through the lens of objective brain function, this interdisciplinary approach offers a promising path toward understanding why we repeat the past, how we perceive our present, and how we might finally find the tools to change our deeply ingrained patterns of behavior. This synthesis suggests that, far from being a relic of the past, Freud’s observations about the mind were a remarkably accurate precursor to our most sophisticated modern understanding of how the brain works.
