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 shapes human behaviour and the mind? Why do we dream? Are there more factors to mental illness than genetics?

Controversial Topics in Psychology

• Social psychology: conformity, obedience

• Psychological disorders: crime, solitary confinement, incarceration

History 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 using introspection.

• Structuralism: Early school of thought, studied the structure of consciousness.

Structuralism

• Founded by Wilhelm Wundt and E.B. Titchener

• Emphasized introspection to study consciousness

• Focused on understanding the structure and characteristics of the mind

Theoretical Perspectives in Psychology

Major Schools of Thought

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

School	Key Figures	Main Focus
Structuralism	Wundt, Titchener	Structure of consciousness
Functionalism	William James	Purpose of mental processes
Behaviorism	Watson, Skinner	Observable behaviour
Cognitivism	Piaget, Neisser	Mental processes
Psychodynamic	Freud	Unconscious motives

Functionalism

• Founded by William James

• Focused on the purpose of cognitive processes

• Influenced by theory of natural selection

Behaviorism

• Founded by John Watson

• Emphasized observable behaviour and its modification

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

• B.F. Skinner: Studied operant conditioning—modifying behaviour through reinforcement and punishment

Cognitivism

• Founded by Piaget and Neisser

• Focuses on mental processes underlying thinking

• Considers interpretation of events, not just reward/punishment

Psychodynamic Perspective

• Founded by Sigmund Freud

• Focuses on unconscious motives and conflicts

• Studied hysteria and neurosis

Women in Psychology

• Sexual prejudice hindered women's participation

• Still underrepresented at highest academic ranks

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

Scientific Thinking in Psychology

Why Can't We Always Trust Common Sense?

• Naive Realism: Belief that "seeing is believing"

• Common sense can be misleading (e.g., the earth seems still but rotates at 30 km/sec)

• Snap judgments based on facial traits are only 65% accurate in determining sexual orientation

Scientific Method

• Identifies questions of interest

• Formulates explanations

• Uses systematic observation and evidence

Scientific Theory

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

• Must be testable and supported by evidence

Bias and Critical Thinking

Bias Awareness

• Best scientists are aware of their biases

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 initial beliefs even when evidence is contradictory

• "Don't confuse me with facts" bias

Real-Life Impact of Biases

• Shaping behaviour

• Stereotyping

• Medical self-diagnosis

• Relationship conflicts

• Product reviews

Warning Signs of Pseudoscience

• Use of psychobabble (e.g., energy therapies)

• Lack of self-correction

• Overreliance on anecdotal evidence

• Extraordinary claims without extraordinary evidence

Patternicity

• Tendency to detect meaningful patterns in random stimuli

Terror Management Theory

• We experience anxiety because we are aware that death is inevitable but unpredictable

• We cope by seeking meaning, purpose, and continuity

• Tested by manipulating mortality salience

Antidote for Pseudoscience

• Think scientifically

• Separate science from pseudoscience

• Avoid common logical fallacies

Common Logical Fallacies

• Emotion reasoning fallacy: Using emotions rather than evidence

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

Dangers of Pseudoscience

• Opportunity cost: Wasting time, energy, effort on questionable treatment

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

• Blocks critical thinking

Critical Thinking

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

• Key to scientific method

• Thinking critically, evaluating evidence, overcoming biases

Types of Psychological Research

Experimental Psychology

• Research focused

Applied Psychology

• Utilizes research to solve real-world problems

Major Areas 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 in everyday life to solve real-world problems