Introduction to Psychology: Foundations, Perspectives, and Scientific Thinking

Introduction to Psychology

Definition and Scope

Psychology is the scientific study of behaviour and mental processes. Psychologists describe, predict, and explain human behaviour and mental processes, seeking to answer questions about why people think and act the way they do.

• Key Questions: What drives human behaviour? Are there more factors to mental health than genetics? Why do we dream?

Controversial Topics in Psychology

• Social psychology: conformity, obedience

• Psychological disorders: crime, solitary confinement, incarceration

History and Development of Psychology

Psychology: Past and Present

Psychology originated as a part of philosophy, with ancient Greeks contemplating the mind. It became a formal discipline in the late 19th century.

• Wilhelm Wundt: Established the first psychology lab in 1879, focusing on the building blocks of the mind (structuralism) using introspection.

Structuralism

• Founded by Wilhelm Wundt and E.B. Titchener

• Emphasized studying the structure and characteristics of the mind through introspection

• Attempted to understand consciousness by analyzing its basic elements

Theoretical Perspectives in Psychology

Major Schools of Thought

There are five primary schools of thought that have shaped modern psychology:

• Structuralism

• Functionalism

• Behaviorism

• Cognitivism

• Psychodynamic

Functionalism

• Founded by William James, the first American psychologist

• Focused on the purpose of cognitive processes, establishing functionalism

• Examined how the mind allows behaviour to function

• Perspectives influenced by the theory of natural selection

Psychodynamic Perspective

• Founded by Sigmund Freud

• Studied hysteria and neurosis

• Emphasized unconscious motives and conflicts

Behaviorism

• Focuses on observable behaviour and ways to control it

• Used today in behavioural therapy (e.g., CBT)

• B.F. Skinner: Studied principles of modifying behaviour through reinforcement and punishment (operant conditioning)

Cognitivism

• Associated with Piaget and Neisser

• Focuses on understanding mental processes underlying thinking

• Thinking affects our behaviour—not just reward or punishment, but also interpretation

Women in Psychology

• Sexual prejudice hindered women's participation

• Still only represent 28% of faculty at highest rank

• Male psychologists earn more on average than female counterparts

• Margaret Floy Washburn: First woman to receive PhD in Psychology (1894)

Scientific Thinking in Psychology

Common Sense vs. Scientific Method

Common sense can be misleading. Scientific thinking involves collecting observations, developing theories, and making predictions.

• Identify questions of interest

• Formulate explanations

• Carry out research to support/refute

Scientific Theory

• Explanation for a large number of findings in the natural world

• Must generate testable predictions

Confirmation Bias

• Tendency to seek out evidence that supports our hypothesis

• Neglecting or ignoring contrary evidence

• Example: Police evidence matching

Belief Perseverance

• Tendency to stick to our initial belief even when evidence is contradictory

• "Don't confuse me with facts" bias

Consequences of Biases in Real Life

• Shaping our behaviour

• Stereotyping

• Medical self-diagnosis

• Relationship conflicts

• Product reviews

Pseudoscience and Critical Thinking

• Pseudoscience: Claims that seem scientific but are not (e.g., energy therapies, use of anecdotal evidence)

• Critical thinking: Set of skills to evaluate claims open-mindedly and carefully

• Key to scientific method: Thinking critically, evaluating evidence, overcoming biases

Common Logical Fallacies

• Emotion reasoning fallacy: Using emotions rather than evidence

• Bandwagon fallacy: Believing something is true because many people believe it

• Not me fallacy: Believing others have biases, not oneself

Dangers of Pseudoscience

• Opportunity cost: Investing time, energy, effort into questionable treatment

• Direct harm: Sometimes do direct harm to those who receive them

• Blocks critical thinking: Can spill over into other critical issues (e.g., stem cell research, GMOs)

Types of Psychological Research

Experimental Psychology

• Research focused

Applied Psychology

• Utilizes research in everyday life to solve real-world problems

Fields of Psychology

• Child development psychology

• Industrial/Organizational (I/O) psychology

• Sports psychology

• Social/Personality psychology

• Forensic psychology

• Other specialized fields

How Psychology Affects Our Lives

• Basic research: Examines how the mind works

• Applied research: Utilizes research to solve real-world problems

Summary Table: Major Schools of Thought in Psychology

School of Thought	Founder(s)	Main Focus	Key Methods
Structuralism	Wilhelm Wundt, E.B. Titchener	Structure of the mind	Introspection
Functionalism	William James	Purpose of mental processes	Observation, natural selection
Behaviorism	B.F. Skinner	Observable behaviour	Reinforcement, punishment
Cognitivism	Piaget, Neisser	Mental processes	Interpretation, problem-solving
Psychodynamic	Sigmund Freud	Unconscious motives	Psychoanalysis

Key Equations and Concepts

• Operant Conditioning (Behaviorism):

$\text{Behaviour} \xrightarrow{\text{Reinforcement/Punishment}} \text{Change in Behaviour}$

• Scientific Method Steps:

$1.\ \text{Identify question} \rightarrow 2.\ \text{Formulate hypothesis} \rightarrow 3.\ \text{Collect data} \rightarrow 4.\ \text{Analyze results} \rightarrow 5.\ \text{Draw conclusions}$

Additional info: Some explanations and examples have been expanded for clarity and completeness.