Etiology

The study and investigation into the root causes of a psychological disorder so that it might be resolved.

Psychological etiology refers to the scientific investigation into the origins of a disorder that cannot be explained biologically. Etiology is complicated by the fact that most disorders have more than one cause. Early etiological theories were the Freudian and post-Freudian psychoanalytic beliefs. Sigmund Freud attributed mental or neurotic disorders to deep-seated or hidden psychic motivations. The unconscious played the primary role in Freud's approach. According to Freud, the person in conflict was unaware of the cause because it was too deeply embedded in an inaccessible part of the mind. Freud postulated that the occurrence of previous traumas, unacceptable feelings, or wanton drives enacted a defense mechanism that enabled this burial into the unconscious. As a means of survival, a person might push such unsavory thoughts and memories as far from the conscious mind as possible.

Childhood , according to Freud, was the time when many repressed motivations and defense mechanisms began to thrive. Without control over their own lives, children have no way to resolve such emotions that include frustration, insecurity, or guilt . These emotions essentially build up while the child's personality is developing into adulthood. Every psychological disorder from sexual dysfunction to anxiety might be explained after talking about the repressed feelings a person has harbored since childhood.

The change in theory

A new trend in determining the causes of psychological disorders began to thrive after World War II. Some of the psychologists who proposed this new etiology had studied under Freud but ultimately looked further to explain the nature and causes of psychological disorders. Carl Jung , for example, believed that a person's need for spirituality lead to dissatisfaction if it were not met. The inability to thus define oneself spiritually contributed to the rise of psychological or neurotic disorders. For Alfred Adler , feelings of inferiority captured the focus of conflict. Others, including Harry Stack Sullivan, Karen Horney , and Erick Fromm, used Freud's theory as a basis for their thought but emphasized instead the importance of social, cultural, and environmental factors in uncovering the causes for psychological problems.

Another type of etiology that emerged after Freud is called behavioral etiology. This focuses on learned behaviors as causes of mental disorders. Ivan Pavlov and B. F. Skinner are two famous behavioral psychologists. Behaviorists argue that the mind can be "trained" to respond to stimuli in various ways. A conditioned response is one which is learned when a stimulus produces a response, and that response is somehow reinforced. A young girl, for example, is told she is cute for screeching at the sight of a spider. She learns that this screech produces a favorable response from onlookers. Over time, this learned behavior may develop into a truly paralyzing fear of spiders. Behaviorists believe that just as a person can be conditioned to respond to a stimulus in a particular way, that same person can be conditioned to respond differently. In other words, more appropriate behavior can be learned, which is the basis for behavioral therapy.

With modern approaches to therapy, including the existential and cognitive approach, psychology has moved away from depicting mental illnesses as emerging from one root cause. For example, clinical psychologists generally search for a complexity of issues that stem from emotional, psychosexual, social, cultural, or existential causes. The cognitive approach, such as that developed by Aaron Beck , attempts to readapt behavioral responses through a rational process that demands an honesty and discipline to undo fears and anxieties. Cognitive therapies might even have a positive role in treating schizophrenia without medication.

While psychologists have focused on the mind itself as the location where psychological impairment might begin, medical doctors and researchers have continued to understand the biology that might influence mental disorders. Many of these studies have resulted in the refinement of prescription medications that alter a person's biochemistry to prevent or control various illnesses such as depression or schizophrenia. Neuropathology, or damage to brain tissue, can also serve as a biological cause of psychological disorders. Genetic research has been conducted to determine causes of certain disorders at the level of DNA. Researchers have been working for decades to isolate a gene that contains the "program" for schizophrenia. In fact, reports of fully recovered schizophrenics treated without medication continued to rise by 2000. Psychological intervention seems to be just as effective as medical treatment for schizophrenic episodes.

Crucial to the treatment of any disorder is an understanding of its possible causes. Psychologists need to determine the etiology of a disorder before they can modify behavior.

See also Behaviorism; Cognitive therapy

Jane Spear

Further Reading

Benner, David G., and Hill, Peter C., ed. Baker Encyclopedia of Psychology & Counseling. Grand Rapids, MI: Baker Books, 1999.

Corsini, Ray, ed. Encyclopedia of Psychology, Second Edition. New York: John Wiley & Sons 1994.

McGuire, Patrick A. New Hope for People with Schizophrenia. APA Monitor on Psychology, February 2, 2000.

Further Information

American Psychological Association. 750 First Street, N.E., Washington, D.C., USA. 20002-4242, 202-336-5500, 800-374-2721.

Etiology

Etiology, also referred to as aitiology, aetiology, and disorder etiology, is study or theory of the factors that cause diseases or disorders; what is called causation. It also involves the origin of diseases and the methods by which diseases inflict a host such as a human. More specifically, etiology, in medicine, is the sum of knowledge regarding a disease, or knowledge of all pathological processes leading to a disease. In the process of etiology, there may be just one causative agent, but no one specific cause of disease.

The term etiology is derived from the Greek word aitiologia, which means statement of a cause. In the modern medical language, physicians may state that the ‘etiology is unknown’; that is, the cause of the problem is not known. Etiology is also used in such scientific fields as biology, chemistry, physics, and psychology.

As an example of how etiology is used in the medical field, medical scientists know that tuberculosis is caused by the tubercle bacillus. Many people are exposed to the tubercle bacillus yet only one may develop the disease. The bacilli can also lay dormant in the body for many years and became active as the result of an intercurrent infection (occurring during the course of an existing disease), prolonged stress, or starvation.

While some diseases have no known cause, there are several factors that may contribute to, or predispose someone to a disease. Many variables must be considered when looking at the cause of a disease such as, gender, age, environment, lifestyle, heredity, allergy, immunity, and exposure.

e·ti·ol·o·gy / ˌētēˈäləjē/ • n. (pl. -gies) 1. Med. the cause, set of causes, or manner of causation of a disease or condition: a disease of unknown etiology a group of distinct diseases with different etiologies. ∎  the causation of diseases and disorders as a subject of investigation.2. the investigation or attribution of the cause or reason for something, often expressed in terms of historical or mythical explanation.DERIVATIVES: e·ti·o·log·ic / ˌētēəˈläjik/ adj.e·ti·o·log·i·cal adj.e·ti·o·log·i·cal·ly adv.

Etiology

Etiology is study of the cause of disease . More specifically, etiology is the sum of knowledge regarding a disease, or knowledge of all pathological processes leading to a disease. There may be just one causative agent, but no one cause of disease. For example, as stated in Boyd's Introduction To The Study Of Disease, we know tuberculosis is caused by the tubercle bacillus. Many people are exposed to the tubercle bacillus yet only one may develop the disease. The bacilli can also lay dormant in the body for many years and became active as the result of an intercurrent infection (occurring during the course of an existing disease), prolonged stress , or starvation. While some diseases have no known cause, there are several factors that may contribute to, or predispose someone to a disease. Many variables must be considered when looking at the cause of a disease such as, gender, age, environment, lifestyle, heredity, allergy , immunity, and exposure.

etiology (ee-ti-ol-ŏji) n. see aetiology.