Definition of psychological disorders
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Definition of Psychological Disorders: Key Concepts and Criteria
Psychological disorders, also known as mental or psychiatric disorders, are generally defined as patterns of behavior, cognition, or emotional regulation that cause significant distress or impairment in important areas of functioning. These disruptions are not considered part of normal human development or cultural expectations and often interfere with a person’s ability to function in daily life 251.
Distress, Dysfunction, and Impairment in Psychological Disorders
A central feature of psychological disorders is that they are associated with distress (emotional suffering) or dysfunction (problems in thinking, feeling, or behaving) that negatively impact a person’s life. This can include difficulties in work, relationships, or self-care. Disorders such as depression, anxiety, bipolar disorder, and schizophrenia are common examples, but the severity and specific symptoms can vary widely among individuals 2310.
Scientific and Social Perspectives on Mental Disorders
The concept of psychological disorder combines both scientific and value-based elements. Scientifically, a disorder is often seen as a dysfunction in mental mechanisms—meaning that some part of the mind or brain is not working as it should. Socially, a disorder is considered harmful when it causes suffering or is judged as undesirable by societal standards. This “harmful dysfunction” model is widely discussed in academic literature and helps distinguish disorders from normal variations in behavior or personality 68.
Classification and Diagnosis of Psychological Disorders
Formal definitions and classifications of psychological disorders are provided by systems like the Diagnostic and Statistical Manual of Mental Disorders (DSM) and the International Classification of Diseases (ICD). These systems use specific criteria to identify when a set of symptoms constitutes a disorder, focusing on the presence of distress, disability, and deviation from expected norms 489.
Lay and Professional Understandings of Psychological Disorders
While professionals use structured criteria, laypeople often define psychological disorders based on the presence of emotional distress, impairment, and the perception that the condition is rare or abnormal. There can be differences between public and professional views, but both emphasize the importance of suffering and functional problems in defining a disorder .
Biological and Environmental Factors in Psychological Disorders
Psychological disorders can arise from a combination of genetic, biological, psychological, and environmental factors. Changes in brain structure or function, life stressors, trauma, and social conditions like poverty or inequality can all contribute to the development of these disorders 210.
Conclusion
In summary, psychological disorders are clinically significant disturbances in behavior, cognition, or emotion that cause distress or impair daily functioning. They are defined by a combination of scientific understanding of brain and mental function and social judgments about harm and abnormality. Both professional and lay perspectives agree that suffering and impairment are central to the definition of psychological disorders, though the specific boundaries and criteria may vary.
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