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  • The General Adaptation Syndrome Theory

Physiological Signs of Prolonged Stress in Selye's Rat Studies

In his foundational research on stress, Hans Selye identified a distinct trio of physiological changes in rats subjected to prolonged stressors. These observable signs consisted of adrenal gland enlargement, shrinkage of the thymus and lymph nodes, and the formation of stomach ulcerations.

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References

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Ch.14 Stress, Lifestyle, and Health - Psychology @ OpenStax

Psychology @ OpenStax

Introduction to Psychology @ OpenStax Course

OpenStax

OpenStax Psychology (2nd ed.) Textbook

Psychology

Social Science

Empirical Science

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Related

  • General Adaption Syndrome: Resistance Stage

  • Physiological Signs of Prolonged Stress in Selye's Rat Studies

  • Nonspecificity of the General Adaptation Syndrome

  • General Adaptation Syndrome: Alarm Reaction

  • Graphical Representation of the General Adaptation Syndrome

  • General Adaptation Syndrome: Exhaustion Stage

  • Impact of the General Adaptation Syndrome Theory

  • Link Between Prolonged Stress and Disease

  • Shortcomings of the General Adaptation Syndrome Theory

Learn After

  • A research team conducts a study on laboratory rats, exposing them to a consistent, unavoidable stressor for several weeks. At the conclusion of the study, the rats undergo a physiological examination. According to the classic findings on the bodily effects of prolonged stress, which pattern of results would be the most definitive evidence of long-term physiological exhaustion?