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Posted: May 7th, 2023

Psychological Disorders

Psychological Disorders
Psychological disorders are mental or behavioral patterns that cause significant distress or impairment of personal functioning. They are usually associated with abnormal thoughts, emotions, perceptions, or behaviors. Some of the most common psychological disorders are anxiety disorders, mood disorders, psychotic disorders, personality disorders, and eating disorders.

Anxiety disorders are characterized by excessive fear or nervousness in response to perceived threats or situations. They include generalized anxiety disorder, panic disorder, phobias, social anxiety disorder, obsessive-compulsive disorder, and post-traumatic stress disorder. Anxiety disorders can interfere with daily activities, relationships, and physical health.

Mood disorders are characterized by persistent or recurrent changes in mood that affect how a person feels, thinks, and behaves. They include major depressive disorder, bipolar disorder, dysthymia, and cyclothymia. Mood disorders can cause feelings of sadness, hopelessness, guilt, anger, or euphoria. They can also affect appetite, sleep, energy, concentration, and motivation.

Psychotic disorders are characterized by a loss of contact with reality and the presence of delusions or hallucinations. They include schizophrenia, schizoaffective disorder, delusional disorder, and brief psychotic disorder. Psychotic disorders can impair a person’s ability to function in social and occupational roles.

Personality disorders are characterized by enduring patterns of thinking, feeling, and behaving that deviate from the expectations of the culture and cause problems in interpersonal relationships. They include paranoid personality disorder, schizoid personality disorder, schizotypal personality disorder, antisocial personality disorder, borderline personality disorder, histrionic personality disorder, narcissistic personality disorder, avoidant personality disorder, dependent personality disorder, and obsessive-compulsive personality disorder. Personality disorders can affect a person’s self-image, self-control, empathy, and intimacy.

Eating disorders are characterized by abnormal eating behaviors and attitudes toward food and body weight. They include anorexia nervosa, bulimia nervosa, binge eating disorder, and other specified feeding or eating disorders. Eating disorders can cause serious physical and psychological complications.

Psychological disorders can be diagnosed using standardized criteria such as the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) or the International Classification of Diseases (ICD-11). The causes of psychological disorders are complex and multifactorial. They may involve genetic factors, biological factors, psychological factors, social factors, or environmental factors. The treatment of psychological disorders may involve psychotherapy, medication, or other interventions depending on the type and severity of the disorder.


American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Washington DC: Author.

World Health Organization. (2018). International classification of diseases for mortality and write my dissertation on morbidity statistics (11th Revision). Retrieved from https://icd.who.int/browse11/l-m/en

Kring A.M., Johnson S.L., Davison G.C., & Neale J.M. (2018). Abnormal psychology (13th ed.). Hoboken NJ: Wiley.

Sue D., Sue D.W., Sue S., & Sue S.M. (2019). Understanding abnormal behavior (11th ed.). Boston MA: Cengage.


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