Originating around 370 BCE, Hippocrates' theory proposed that personality traits and behaviors are determined by four distinct temperaments. Each temperament is linked to a specific bodily fluid, or 'humor': the choleric temperament to yellow bile from the liver, the melancholic to black bile from the kidneys, the sanguine to red blood from the heart, and the phlegmatic to white phlegm from the lungs.

Hippocrates' Theory of Four Temperaments

The Greek physician Galen expanded upon Hippocrates' theory of the four temperaments. He proposed that imbalances in the four humors could explain not only personality differences but also various diseases. Galen's view, which posited that every individual displays one of the four primary temperaments, became a dominant theory in medicine and philosophy for over a millennium, lasting through the Middle Ages.

Galen's Expansion of the Four Temperaments Theory

In 1780, German physician Franz Gall introduced the theory that a person's personality, character, and mental faculties could be understood by examining the bumps on their skull. Gall believed that measuring the distances between these bumps would reveal the size of the underlying brain regions, which in turn would indicate specific traits such as friendliness, pride, or kindness. Although this practice, known as phrenology, gained initial popularity, it was eventually discredited as a pseudoscience due to a lack of empirical support.

Franz Gall's Theory of Personality

In the 18th century, philosopher Immanuel Kant expanded on Galen's temperament theory. He concurred with the idea that every individual fits into one of four distinct, non-overlapping temperament categories. Kant's main contribution was the creation of a detailed list of traits to describe the personality of a person corresponding to each of the four temperaments.

Immanuel Kant's Contribution to Temperament Theory

In the 19th century, psychologist Wilhelm Wundt proposed that personality could be more effectively described using a two-dimensional model rather than discrete categories. He introduced two primary axes: one distinguishing between emotional and nonemotional tendencies, and another between changeable and unchangeable traits. This model provided a more nuanced way to map and understand the four classical temperaments.

Wilhelm Wundt's Two-Dimensional Model of Personality

Sigmund Freud's psychodynamic perspective was the first comprehensive theory of personality, designed to explain a wide range of both normal and abnormal behaviors. Freud proposed that personality is fundamentally shaped by unconscious drives, particularly those related to sex and aggression, as well as by experiences during childhood. These elements create lifelong conflicts between the conscious and unconscious mind that define an individual's character.

Freud's Psychodynamic Theory of Personality

Read the following scenario and analyze the fundamental assumption being made about the connection between the physical body and personality.

Analysis of an Early Personality Assessment Method

The study of personality has a long history, with early theories contributed by figures like Hippocrates and Galen. In the modern era, foundational work was done by theorists such as Sigmund Freud, Abraham Maslow, and Gordon Allport, who each attempted to explain how personality develops from their unique perspectives, paving the way for later theoretical approaches.

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Following early historical views, Sigmund Freud's psychodynamic perspective became a foundational modern theory, emphasizing the role of early childhood experiences. Subsequently, many other major theoretical perspectives emerged, often in reaction to the psychodynamic approach. These include the learning, humanistic, biological, trait, and cultural perspectives, each offering a different lens through which to understand personality.

Theories of Personality

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Trait theorists suggest that individuals have certain characteristics that tend to remain stable over time and appear in many situations. These theorists suggest individual traits to be the unit of analysis. They aim to determine which traits occur together and their specific patterns of organization within individuals.

Trait Theories

The psychoanalytic approach focuses on the unconscious mind and internal conflict. Mainly described by Freud and Erikson, this approach is motivated by the need to satisfy basic drives.  This approach also emphasizes the importance of early childhood experiences, as they impact different aspects of development over time.

Theory of Psychoanalytic Approach

The phenomenological approach focuses on the conscious experiences of the individual. It also emphasizes awareness and free will.

Theory of Phenomenological Approach

He is the Father of Humanism, which is heavily focusing on normal development rather than abnormal behaviors. 

Maslow's Theory of Personality

Historical Perspectives on Personality

The cultural perspective considers culture to be one of the most important environmental factors in shaping personality. It explores how both universal and culture-specific elements contribute to personality development and diversity, questioning the universal applicability of theories developed in a single cultural context, such as the West.

Cultural Perspective in Personality

Neo-Freudians were a group of theorists who followed Sigmund Freud but adapted his ideas to develop new personality theories. While they concurred with Freud on the significance of childhood experiences, they shifted the focus away from sexual drives, placing greater emphasis on the influence of social and cultural factors on personality development.

Neo-Freudians and Personality

Humanism is a highly influential perspective in psychology that focuses on the growth potential of healthy individuals and their innate capacity for good. Championed by key figures like Abraham Maslow and Carl Rogers, this approach posits that people are driven by a desire for self-actualization. It highlights concepts such as free will and self-determination, asserting that individuals actively strive to become the best version of themselves, which has significantly contributed to the psychological understanding of the self.

Humanism in Psychology

The evolutionary perspective on personality examines how both universal human traits and individual differences have evolved as adaptations. This view posits that these personality characteristics provided survival and reproductive advantages in ancestral environments. It explores why certain traits are common across cultures and why heritable individual variations persist.

Evolutionary Perspective on Personality

This video provides a summary of several psychological perspectives on personality, offering a broad introduction to the topic.

Video Overview of Personality Perspectives

This theoretical framework examines personality through the lenses of learning and cognition. It encompasses behaviorist views, which see personality as shaped by environmental reinforcements and consequences, as well as cognitive and social-cognitive views, which emphasize the role of mental processes like thoughts, beliefs, and social observation in personality development.

Learning and Cognitive Perspectives on Personality

The biological approach to personality suggests that inherited predispositions and physiological processes are foundational to individual differences. While genetics are believed to largely control certain personality aspects, this perspective also acknowledges that environmental factors, such as family interactions, and the process of maturation can influence how these genetic tendencies are ultimately expressed.

Biological Approach to Personality

Research into the connections between personality and other factors has led to the identification and study of Type A and Type B personality classifications. These concepts are often explored in relation to stress, health, and lifestyle.

Type A and Type B Personalities

Consider the case of Alex, a university student who consistently procrastinates on important assignments and experiences significant anxiety in social situations. Analyze Alex's behavior from two different theoretical viewpoints: the psychodynamic perspective and the learning perspective. How would each perspective explain the root causes of Alex's actions?

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