What Is a Neuropsychological Syndrome?
A neuropsychological syndrome is a characteristic combination of impairments in various higher mental functions (HMFs), such as memory, language, attention, perception, thinking, and other cognitive processes, resulting from damage, underdevelopment, or dysfunction of specific brain systems.
A major contribution to the development of this concept was made by the distinguished Russian neuropsychologist A. R. Luria. According to his approach, damage to a particular brain system does not usually lead to the loss of only one isolated function. Instead, it gives rise to an entire pattern of interconnected impairments.
At the core of this pattern lies the neuropsychological factor—a specific mechanism of brain-system functioning that contributes to the organization of several mental functions. When this mechanism is disrupted, it can produce an entire constellation of symptoms. Therefore, the task of a neuropsychologist is not merely to identify which function has been impaired, but also to understand the system of relationships among different deficits, determine their common underlying mechanism, and distinguish between primary impairments and those that arise secondarily. A neuropsychological syndrome can be viewed as consisting of two interrelated levels of impairment.
Primary impairments are the direct consequence of damage or dysfunction within a particular brain system. For example, dysfunction in certain regions of the temporal cortex may lead to difficulties in analyzing and discriminating speech sounds due to impairment of the auditory information-processing mechanism.
Secondary impairments arise as a consequence of the primary deficit and reflect its systemic influence on other mental processes. For instance, impaired analysis and discrimination of speech sounds may interfere with speech comprehension, object naming, reading, and writing because these abilities depend on the integrity and proper organization of the corresponding language mechanisms. It is precisely the combination of primary and secondary impairments linked by a common underlying mechanism that constitutes a neuropsychological syndrome.
This represents one of the fundamental principles of Luria's neuropsychological approach: brain functions cannot be understood as isolated elements. Rather, they are organized into complex functional systems that continuously interact with one another. Consequently, understanding a person's condition requires not only identifying what has been impaired but also answering the more important question: why this particular pattern of impairments has developed and how different mental functions are interconnected.
Such a systemic analysis provides the foundation for the subsequent restoration and compensation of impaired higher mental functions.
Restoration of Higher Mental Functions
What do we mean by the restoration of higher mental functions?
Restoration of higher mental functions is a system of specialized psychological and neuropsychological interventions aimed at restoring, reorganizing, or compensating for impaired cognitive processes—including attention, memory, thinking, language, perception, executive control, and other mental functions—following brain injury or neurological disease, such as stroke. The primary goal of rehabilitation is not merely to improve performance on individual neuropsychological tests. Ultimately, its purpose is to help individuals regain or compensate for lost abilities and return, as fully as possible, to everyday, social, and, where feasible, professional functioning.
At this point, it is important to introduce the concept of leading mental activity. During rehabilitation, a psychologist or neuropsychologist may intentionally organize a person's activity in such a way that preserved or partially preserved mental abilities are used to influence impaired functions.
In other words, the specialist does not simply ask the patient to perform isolated exercises. Instead, the impaired function is incorporated into a broader, meaningful, and motivating activity, allowing preserved capacities to serve as the basis for recovery. This raises the question of the direction of the recovery process.
Within my conceptual framework, I view rehabilitation as a movement from more complex and meaningful levels of mental activity toward the more elementary actions and operations that must be restored or reconstructed. This may be described as a vertical principle of recovery. For example, simply raising one's arm can be viewed as a motor exercise. However, when a person raises the arm to pick up an object, greet someone, perform a daily task, or participate in meaningful activity, the movement becomes part of a broader functional system. Thus, the restoration of an individual action may occur within the context of integrated psychological and practical activity.
It is important to recognize that restoring higher mental functions is not equivalent to mechanically "repairing" a single function. Human mental activity is organized as an interconnected system, meaning that recovery often requires the reorganization of relationships among multiple cognitive processes. Furthermore, the development and breakdown of mental functions are not necessarily symmetrical.
Following brain injury or progressive neurological disease, different functions may deteriorate at different rates. Some abilities decline substantially, whereas others remain relatively preserved. For example, in Alzheimer's disease, impairments in memory, orientation, language, and other cognitive functions may gradually worsen, while certain forms of emotional responsiveness, recognition of familiar people, or habitual actions may remain intact for considerably longer. This observation has important implications for rehabilitation.
If even part of a function remains preserved, it can become the foundation for organizing activity and compensating for other impairments. Thus, the neuropsychologist's task is not limited to identifying what has been lost but also includes discovering what has been preserved and using these remaining capacities as the basis for rehabilitation.
For this reason, the concept of the neuropsychological factor becomes especially significant. A disruption of one underlying mechanism may manifest itself across several different mental functions, and rehabilitation should therefore address the entire interconnected system rather than isolated symptoms.
In this sense, neuropsychological rehabilitation is not simply a return to the person's pre-illness state but a complex process of reorganization and compensation of mental functioning. This naturally leads to another important question:
Which form of activity is capable of becoming the leading and organizing force in the restoration of higher mental functions?
Leading Mental Activity
The concept of leading activity occupies a central place in Russian developmental psychology. A. N. Leontiev defined leading activity as the activity responsible for producing the most significant changes in a child's mental processes and psychological characteristics at a particular stage of development.
He identified three essential characteristics of leading activity:
- Within leading activity, new forms of activity emerge and differentiate.
- Mental processes are formed or reorganized through leading activity.
- The principal psychological changes in personality at a given developmental stage depend upon leading activity.
The concept was further developed by D. B. Elkonin, V. V. Davydov, and other Russian psychologists. Elkonin employed this concept when constructing his theory of developmental stages based on the successive changes in leading activity throughout childhood.
Thus, leading activity is the activity that determines the emergence of the major psychological developments characteristic of a particular stage and creates conditions for the formation of new forms of activity. Importantly, leading activity is not necessarily the activity occupying most of the child's time. Its significance lies in its developmental influence rather than its duration. This leads to an intriguing connection between the theory of leading activity and the restoration of higher mental functions.
If a specific type of activity is capable of organizing and restructuring mental processes during normal development, then an obvious question arises:
Can intentionally organized activity also be used to restore or compensate for impaired mental functions?
Rather than training memory, attention, language, or movement separately, it may be possible to organize meaningful activities that integrate multiple mental processes simultaneously while providing a clear purpose for the individual.
For example, after brain injury, repeatedly practicing arm movements in isolation may be less meaningful than using the same movement to grasp a cup, open a door, write a message, prepare a meal, or accomplish another personally significant task. In such cases, an individual movement becomes integrated into a larger functional system. This is precisely why the concept of leading activity holds practical significance in my approach.
I regard specially organized activity as a means of influencing several interconnected mental processes simultaneously, using preserved abilities as the basis for restoring impaired functions. However, an important clarification is necessary. Leontiev's original concept of leading activity was developed primarily within the context of child development. Applying it to adult neuropsychological rehabilitation represents a broader practical interpretation of the theory.
One particularly interesting illustration of organized activity is provided by the Zagorsk Experiment, a series of educational and rehabilitation projects involving individuals with combined deafness and blindness. These programs emphasized structured object-oriented activity, self-care training, interaction with the surrounding environment, and the gradual acquisition of increasingly complex forms of action.
The experience demonstrated that substantial development of cognitive, practical, and social abilities was possible in people with combined sensory loss when appropriate educational environments were established. The key principle is that complex psychological capacities may emerge through organized activity, education, social interaction, and the gradual mastery of purposeful actions. People learn not only to perceive the world but also to act within it.
Initially, simple skills—such as self-care and orientation in the physical environment—are developed. These later become the basis for more advanced practical and cognitive activities. From the perspective of neuropsychology, this sequence is especially significant.
It demonstrates that activity can serve not only as the result of already-developed mental functions but also as the mechanism through which those functions are formed, reorganized, and developed. If this is possible during development, another question naturally follows:
Can a similar principle be applied to restoring mental functions impaired by brain injury or neurological disease?
At this point, we gradually move from developmental psychology to neuropsychological rehabilitation—and then to an entirely different issue:
Depression.
D. Manic-Depressive Psychosis—or the Modern Understanding of Bipolar Disorder
Earlier psychiatric literature used the term manic-depressive psychosis. Modern psychiatry uses the term bipolar disorder (or bipolar affective disorder). This condition is characterized by episodes of marked changes in mood, energy, activity, and concentration. Individuals may experience manic or hypomanic episodes, depressive episodes, and, in some cases, mixed states in which symptoms of mania and depression occur simultaneously.
Modern psychiatry considers bipolar disorder to be multifactorial in origin. Its development may involve biological, genetic, and environmental influences. Therefore, the disorder should not be attributed solely to personality traits or moral characteristics. However, within my own conceptual framework, I find it valuable to consider another dimension of the problem.
Human beings exist not only as biological organisms but also as personalities possessing values, motivations, relationships, habits, and characteristic ways of interacting with the world. In my clinical observations, certain stable emotional and behavioral patterns may become integrated into an individual's overall psychological functioning. These may include excessive dependence on personal importance, a constant need for recognition, aggression, irritability, envy, jealousy, resentment, hopelessness, excessive greed, or other maladaptive emotional tendencies.
Here I use the term "spiritual qualities" not as a medical diagnosis or an established cause of psychiatric illness but as my own conceptual label for certain enduring psychological and behavioral tendencies. For the purposes of further discussion, I refer to these as "lower spiritual qualities." Why "lower"?
Because these states are characterized by dominance of immediate impulses, intense emotional reactions, the desire for instant gratification, or persistent negative attitudes toward oneself, other people, and reality. Over time, these tendencies may develop into a self-reinforcing system of negative interactions.
For example, prolonged emotional stress may be accompanied by disturbed sleep, appetite changes, heightened anxiety, irritability, bodily discomfort, and other manifestations that individuals may interpret as physical illness. Here an analogy can be drawn with the concept of the neuropsychological factor. Just as a neuropsychological factor represents an underlying mechanism whose disruption produces an interconnected pattern of cognitive symptoms, a persistent psychological state may likewise function as an organizing factor influencing a broad range of behaviors and subjective experiences.
This is not intended as a claim regarding the direct cause of psychiatric illness but rather as an attempt to examine the issue from a systemic perspective. The central question then becomes:
How can a person emerge from such a "lower psychological state"?
If a person's condition is maintained by an interconnected system of habits, emotions, thoughts, and behavioral patterns, is it possible to change this system not by addressing individual symptoms separately but by transforming leading activity and the overall structure of psychological functioning? At this point we return to the concepts discussed earlier:
Leading activity → Organization of mental processes → Neuropsychological factor → Restoration and reorganization of psychological functioning.
And this is where my own story begins.
"And This Is How I Outwitted Depression.."
If we speak about overcoming what I have called a "lower psychological state," another question naturally arises:
What can become the opposing force capable of changing the direction of a person's psychological activity? Within my conceptual framework, I refer to this as higher social-spiritual qualities.
These include qualities such as spirituality or religious devotion, the pursuit of inner well-being and harmony, kindness, inner silence and tranquility, compassion, courage, honesty, practicality, and other characteristics that promote constructive relationships with oneself, other people, and the surrounding world. Here, the term "higher" is not intended as a medical category or a moral judgment. Rather, it denotes a direction of psychological activity in which a person gradually moves beyond immediate negative experiences and begins acting in accordance with broader social, personal, and ethical goals.
Within this model, the direction of activity becomes fundamentally important. If an individual remains for long periods dominated by anxiety, hopelessness, irritability, aggression, or constant preoccupation with personal suffering, these states may shape behavior, motivation, interpersonal relationships, and everyday functioning. Yet human psychological activity is not fixed. It is capable of reorganization. New goals, new forms of activity, meaningful social relationships, and purposeful engagement may become factors that gradually reshape habitual ways of responding to reality. This once again brings us back to the concept of leading activity.
If leading activity can organize and transform mental processes during development, then intentionally organized activity may also play an important role in psychological rehabilitation. Within my model, higher social-spiritual qualities represent one possible direction of such transformation.
Instead of struggling against an isolated symptom, the individual changes the overall direction of psychological functioning. Kindness instead of aggression. Courage instead of fear. Honesty instead of constant self-protection. Compassion instead of continual conflict. Practicality instead of endless immersion in negative thoughts.
In my view, this change in direction creates the conditions for the gradual reorganization of the entire system of psychological activity. With regard to neurophysiology, however, caution is essential. Electroencephalography (EEG) records the brain's electrical activity and provides information about functional characteristics of brain activity.
However, EEG cannot demonstrate the existence of "higher spiritual qualities" or prove that such qualities directly restore specific brain structures. Therefore, within this article I present this relationship only as an author's hypothesis and interpretation, based on my observations and practical experience. My model does not propose that the "higher" regions of the brain literally suppress or repair the "lower" regions.
Rather, it suggests a more complex interaction among different levels of psychological and neural organization. Human psychological activity can change its direction. And a change in the direction of activity may gradually alter behavior, emotional responses, motivation, and patterns of interaction with the surrounding world. In this sense, one may speak of a movement from a less constructive condition toward a more productive and socially meaningful way of life. I refer to this transition as movement toward a positive bioethical trajectory.
This leads to perhaps the simplest—and at the same time the most difficult—question: What happens if a person truly begins to change the direction of their activity? What happens if, instead of constantly analyzing their own suffering, they begin to act? If isolation gives way to connection with others? If aggression is replaced by patience? If helplessness is replaced by purpose? If, instead of waiting for improvement, a person begins creating the conditions for change? Perhaps this is the mechanism I had been searching for. Not by attempting to defeat depression directly. But by outwitting it.
Not by fighting it head-on, but by changing the direction of one's psychological activity so that depression is no longer the leading force governing one's life.
And that is why I can say:
