In the early 1990s, a group of neuroscientists, psychoanalysts, cognitive psychologists, and psychiatrists collaborated to develop a neuroscientific basis of Freudian psychoanalysis. This collaboration combined two completely different areas of study - neuroscience and psychoanalysis. While neuroscience has focused on brain structures, neural mechanisms, and biological processes, psychoanalysis, originating in the work of Sigmund Freud, focused on unconscious processes, subjective experiences, and clinical interpretation.
Several findings in research, in neuroscience and cognitive psychology, during the 1990s, resembled many core ideas in Freudian psychoanalysis, bringing neuroscience and psychoanalysis together. This led to what is known as the neuropsychoanalysis movement - the interdisciplinary field that integrated neuroscience and psychoanalysis. It revived interest in Sigmund Freud as a historical figure and the relevance of his ideas in contemporary psychology, and was described by many as the Second Coming of Sigmund Freud.
Sigmund Freud
A leading pioneer of the neuropsychoanalysis movement, the figure most closely associated with the origin and formal development of neuropsychoanalysis is the neuropsychologist Mark Solms. Solms played a key role in founding the International Neuropsychoanalysis Society in the year 1999 and establishing the theoretical foundations of the field. Solms's works, The Neuropsychology of Dreams, published in 1997, Clinical Studies in Neuropsychoanalysis, published in 2000, and The Brain and the Inner World, published in 2002, are considered to be foundational books of neuropsychoanalysis.
According to Solms, Sigmund Freud was a neurologist and had a scientific outlook. He also believed that Freud had the ambition to ground psychology in brain science, but could not go ahead with it, as the times were not right. From this perspective, for Solms, neuropsychoanalysis represents a continuation of Freud’s original ideas.
The contributions of Solms are mainly based on neuropsychological research on patients with brain damage. By examining how specific brain lesions affect consciousness, emotion, motivation, and self-awareness, Solms sought to identify neural systems and neuropsychological concepts that correspond to Freudian ideas.
Mark Solms
One of the findings of Solms is the role of the brain stem in what he termed core consciousness, which is the basic state of being conscious or awake. Damage to this region results in loss of consciousness, suggesting that consciousness is also associated with the deep, evolutionarily ancient brain structures, rather than only in higher cortical regions.
Solms also found that cortical regions, particularly the prefrontal cortex, are associated with reflective awareness, self-monitoring, and the capacity for introspection. He interpreted this distinction in Freudian terms - the unconscious consists of mental processes that operate outside reflective awareness, while conscious thought involves those processes that are accessible to awareness and self-reflection. This finding challenges the assumption that consciousness is primarily a cortical function and aligns with Freud’s emphasis on affective and motivational processes, rather than rational processes.
Solms also provided a neuroscientific basis for the instinctual drives suggested by Freud. According to Freud, behavior is influenced by the pursuit of pleasure and immediate gratification, which he referred to as the id impulses. In his research, Solms found that these pleasure-seeking and motivational drives have a neural basis - they are associated with the brain stem and the limbic system, brain regions that are involved in survival and emotions. Further, Solms suggested that dopamine, the neurotransmitter that plays a critical role in reward processing, is associated with many pleasure-seeking behaviors.
Along with the id and the pleasure principle, Solms argued that the Freudian concept of the ego, which, according to Freud, mediates between instinctual demands and external reality, also has a neuroscientific basis. Solms suggested that impulse control and reality-based regulation have been linked to the frontal–limbic system, particularly the frontal lobe. Damage to these areas has been found to be related to heightened impulsivity, poor judgment, and disregard for social norms.
Such behaviors are similar to what Freud had suggested to be a weakening of the ego. Solms argued that frontal lobe injuries impair the ability to remain reality-bound, causing individuals to respond to events primarily through their wishes and basic drives, which is similar to the failure of the ego, according to Freud. According to Solms, these findings indicate that the Freudian ideas of the pleasure principle and the id and the ego have a neuroscientific basis.
The Freudian concept of defense mechanisms, particularly repression, has also been explained from a neuroscientific basis. Freud described repression as a process by which threatening or unpleasant thoughts and impulses are kept out of conscious awareness. Solms suggested that neuropsychological studies indicate a neural basis for repression. In many cases of brain damage, it was found that damage to the right hemisphere of the brain has been associated with the repression of distressing information. When these regions are artificially stimulated, awareness of the repressed material often returns. Additionally, such patients frequently engage in confabulation, that is, fabricating explanations to rationalize uncomfortable facts. This is similar to what Freud called wish-fulfilling defenses.
Mark Solms is considered to be the central figure associated with neuropsychoanalysis. After Solms, the major figure associated with neuropsychoanalysis is the neuroscientist and psychobiologist Jaak Panksepp. His work in affective neuroscience created a link between psychoanalysis and neurobiology. His book Affective Neuroscience: The Foundations of Human and Animal Emotions, published in 1998, is considered to be a foundational text of both affective neuroscience and neuropsychoanalysis.
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| Jaak Panksepp |
Panksepp identified seven distinct subcortical neural circuits or basic emotional systems that govern primal affective states. He famously used all-capital letters to distinguish these raw, primary-process instincts from cognitive, higher-level feelings. These emotional systems are - SEEKING (the fundamental, foraging drive for exploration, anticipation, and engagement with the world), RAGE (the instinctual response to restraint, frustration, or attack), FEAR (the primal reaction to physical danger and threat), LUST (the neurobiological drive for reproduction and mating), CARE (the nurturing and attachment drive, particularly maternal instincts), PANIC/GRIEF (the intense distress signal of separation, directly to linked to the root of human grief and clinical depression), and PLAY (the rough-and-tumble instinct fundamental for social learning and joy).
Among the seven basic emotional systems, specifically, the SEEKING system has been influential within neuropsychoanalysis. This system, strongly associated with dopamine pathways, is involved in curiosity, desire, exploration, anticipation, and goal-directed behavior. Neuropsychoanalysts such as Mark Solms viewed this as closely resembling the Freudian concept of instinctual drives and the pleasure principle. Panksepp’s findings also supported the idea that emotions are not secondary to rational thought but are fundamental organizing forces of mental life. In this way, Panksepp’s findings provided a neuroscientific framework for Freud’s emphasis on motivation, emotion, and unconscious drives.
Similarly, the neuroscientist Antonio Damasio contributed significantly to the neuropsychoanalytic perspective through his research on emotion, decision-making, and consciousness. In his book Descartes Error, published in 1994, Damasio proposed his idea of the somatic marker hypothesis, which demonstrated that emotions play a central role in reasoning and judgment, challenging the traditional view that rational thought operates independently of affect. His studies of patients with damage to emotion-related brain regions showed that, despite intact intellectual abilities, such individuals often make poor decisions and exhibit socially inappropriate behavior. These studies demonstrated that emotion plays a crucial role in judgment, decision-making, and social behavior.
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| Antonio Damasio |
The findings of Damasio proved to be significant for neuropsychoanalysis. These findings are consistent with Freud's claim that emotional and other non-rational processes exert a powerful influence on the decisions individuals make and the ways in which they respond to their environment. For the proponents of neuropsychoanalysis, such findings provide further evidence that psychological functioning cannot be understood through only reason and conscious awareness.
Apart from Solms, Panksepp, and Damasio, the cognitive psychologist Daniel Schacter also made significant contributions to neuropsychoanalysis. Schacter made influential contributions through his work on memory systems, particularly implicit memory. Schacter introduced the idea of implicit memory in his influential paper Implicit Memory: History and Current Status, published in 1987. He later expanded the idea in his book Searching for Memory, published in 1996.
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| Daniel Schacter |
According to Schacter, implicit memory is a type of long-term memory in which previous experiences affect perception, judgment, emotion, and behavior even when individuals are unable to consciously remember those experiences. His research demonstrated that memory and cognition are not always fully accessible to conscious awareness.
Neuropsychoanalysts suggest that the notion of implicit memory parallels Freud’s notion of the unconscious mind, particularly the idea that experiences can shape behavior without being consciously remembered. Although Schacter himself did not equate implicit memory with Freud’s unconscious mind, his work provided strong empirical support for the idea that conscious awareness represents only a limited portion of mental activity. For proponents of neuropsychoanalysis, such research suggested that contemporary cognitive psychology had begun to scientifically recognize forms of mental activity operating outside awareness, an idea that had long been central to psychoanalytic theory.
Neuropsychoanalysis turned out to be a significant development in the history of psychology. It emerged at a time when the influence of psychoanalysis was declining in mainstream academic psychology. The movement led to a growing interest in viewing psychoanalysis from a different perspective. As a movement, neuropsychoanalysis brings together insights from psychoanalysis, neuroscience, and cognitive psychology to understand the mind as both a psychological and biological phenomenon.
The proponents of neuropsychoanalysis claim to provide scientific evidence for many of the Freudian ideas. They re-examined Freudian concepts such as the unconscious, instinctual drives, ego regulation, and repression in light of contemporary neuroscience, suggesting that such concepts are not mere speculation. In this way, they also claimed to associate subjective experiences with neuroscience. Critics, however, argue that neuropsychoanalysis is only suggesting neuroscientific correlates of Freudian concepts, which cannot be viewed as supportive evidence. They also argue that suggesting neuroscientific correlates oversimplifies Freudian ideas.
The neuropsychoanalysis movement has been debated among scholars, especially with respect to providing scientific evidence of Freudian concepts. Nevertheless, the re-examination of Freudian concepts in light of contemporary neuroscience has renewed interest in the scientific study of psychoanalytic ideas. It thus gave a different perspective to Freudian psychoanalysis, which is why it is described by neuropsychoanalysts as the Second Coming of Sigmund Freud.
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