The I/E dimension originates from the MBTI (Myers-Briggs Type Indicator) 16-type personality questionnaire, where 'I' stands for Introversion and 'E' for Extroversion. This concept traces back to Carl Jung's psychological type theory and has become a core dimension in modern personality assessment.
The introversion-extroversion theory was first introduced by renowned psychologist Carl Jung in 1921 in his work 'Psychological Types'. This theory was later further developed by Hans Eysenck, becoming one of the core dimensions in modern personality psychology.
MBTI Theory: MBTI (Myers-Briggs Type Indicator) was developed by Katharine Cook Briggs and Isabel Briggs Myers based on Jung's psychological type theory. MBTI categorizes personality into 16 types through four dimensions: Introversion-Extroversion (I/E), Sensing-Intuition (S/N), Thinking-Feeling (T/F), and Judging-Perceiving (J/P). The I/E dimension serves as the first dimension, measuring individual preferences in how they gain and direct energy.
Jung Theory: Jung defined introversion as 'an attitude-type characterised by orientation in life through subjective psychic contents', while extroversion is 'an attitude-type characterised by concentration of interest on the external object'. This goes beyond simple shyness or outgoingness - it represents fundamental differences in how individuals gain and expend psychological energy.
Eysenck Theory: Eysenck's biological theory further explained that extroverts have lower cortical arousal levels in their brains, requiring more external stimulation to reach optimal functioning, while introverts have higher cortical arousal and prefer to avoid overstimulating environments.
Modern Research: Modern neuroscience research has found that introverts show higher blood flow in the prefrontal cortex and anterior cingulate areas responsible for internal processing, while extroverts are more active in the temporal lobes and posterior thalamus involved in sensory and emotional experiences.
Big Five Model: In the renowned Big Five personality model, extroversion is one of five core dimensions alongside neuroticism, openness, agreeableness, and conscientiousness, widely used in academic research and personality assessment.
Answer each question honestly based on how you typically behave or feel. There are no right or wrong answers - this test is designed to help you understand your natural personality tendencies.
This test takes approximately 5-8 minutes to complete.
This assessment is for self-understanding purposes only and is not a clinical diagnosis.
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