What is Psychology?


Psychology is the science of behavior and mental processes

-  Behavior

-  Anything an organism DOES

- Includes reasons we engage in behavior, the manner in which we do so, and the effects we expect to gain from doing so


-  Mental Processes

-  Internal, subjective experiences

- Infer from behavior


-  Science

-  A way of asking and answering questions

 -  Phenomena examined using the scientific method


Psychology as an extension of philosophy

-  Philosophers who considered basic issues/questions of human existence

-  Issues examined through logic and deductive reasoning

-  Scientific method

-  Physics, physiology, and chemistry

-  When applied to issues concerning human behavior and experience

-  Psychology results

-  Aristotle

-  One of the first philosophers recorded as studying psychological issues

-  Components making up human thought and memory

-  Proposed that the mind is a blank slate written upon by our experiences of the world (Descarte first to use the term "blank slate")

-  Experiences make up the components of thought


-  Philosophical Issues addressed by Psychologists

-  Freewill versus Determinism

-  Determinism: The idea that everything that happens has a cause or determinant in the observable world.

Free will: The idea that human behavior is caused by a person’s independent decisions not by external determinants and that this behavior is independent of physics and the chemistry of the body

-  Psychology as a science necessitates the belief that behavior is determined

-  Nature versus Nurture

-  Nature

-  Genetics/heredity
-  The extent behavior is determined by our genetic endowment

-  Nurture

-  Environment
-  The extent behavior is determined by the environment in which it occurs

-  Issue in many branches of psychology

-  Mind-Brain Problem

-  Concerned with the relationship between the mind and the brain

-  Neuropsychology

-  Attempts to answer this question by examining the parts of the brain involved in certain experiences or mental activities

-  Led to the development of

-  First psychology laboratory
-  Official birth of psychology as a scientific discipline

Current Big Issue in Psychology

- Biology vs. experience

- Nature vs. nurture

- "Nurture works on what nature endows,

- Genetics sets the limits of  capability
- Environment determines where within those limits you will fall

- "Rainbow" and "CC"


(Brief) History of Psychology

-  The Birth of Psychology

-  Wilhelm Wundt

-  Favored the scientific approach for addressing psychological issues
-  Set up the very first psychology laboratory
-  Leipzig Germany
-  1879
-  Research Focus
-  "Atoms of the mind"
- Fastest and simplest mental processes
- Objective methods

- Reaction time
- Subjective methods
- Introspection


-  Structuralism

-  First major school of thought in psychology

-  Resulted from Wundt's research focus

-  Structuralism: The attempt to understand the structure (configurations of elements) in the mind by analyzing it into its constituent components or contents

-  Wundt's Students

-  Students from all over the world traveled to Wundt’s lab
-  Learn about and receive doctoral degrees in psychology
-  Edward Tichener
-  Structuralist
-  Interested in examining the basic elements making up the mind
-  Achievements
-  Bringing psychology to the U.S.
- Research focus
- Determining basic elements of experience & how they combine to form conscious sensations
-  Relied entirely on introspection
-  Introspection: Involves looking inward at pieces of information passing into consciousness
-  Self observation


-  Spread of Psychology

-  Psychology quickly adopted and offered in a variety of colleges

-  1883-1893
-  24 new psychological research laboratories in the U.S. and Canada

-  Reasons for adoption of psychology as a discipline in American universities

-  Relatively young universities
-  More open to new disciplines


-  Functionalism

-  Arose as a reaction to structuralism

-  Functionalism: The belief that psychology should concern the function or purpose of consciousness rather than its structure

-  Chief architect of functionalism

-  William James
-  Training was in medicine
-  Wrote “Principles of Psychology”
-  Became standard reading for a generation of psychologists
-  Perhaps the most influential text in the history of  psychology

-  Warred against structuralism

-  Competing for definition and future direction of the new science of psychology

-  Development of two important psychological disciplines

-  Applied psychology
-  Behaviorism


-  Schools of Thought

-  Behaviorism

-  Grew out of functionalism and as a reaction to structuralism
-  Founded by John Watson
-  Behaviorism: Theoretical orientation based on the premise that psychology should study only observable behavior.
-  Dominated psychology and psychological research for many years.

-  Psychoanalytic Approach

-  Arose around the same time as structuralism and functionalism
-  Grew out of Freud's efforts to treat mental disorders
-  Attempts to explain personality, motivation, and mental disorders by focusing on unconscious determinants of behavior.
-  Spawned investigation into personality, motivation and abnormal behavior

-  Humanism

-  Emphasizes conscious rather than unconscious experience in personal development
-  Arose in reaction to behaviorism and psychoanalytic approach
-  Abraham Maslow
-  Proposed that all people possess an innate drive for self-actualization
-  Influences psychological theorizing with its emphasis on personal values and goals


Evolution of Definitions of Psychology

Structuralists & functionalists

"The science of mental life"

Behaviorists

"The science of observable behavior"

Current definition

"The science of behavior and mental processes"



Psychology Today

-  Diverse

-  Broad

-  Research disciplines

-  Developmental

-  Experimental

-  Social

-  Cognitive

-  Personality

-  Psychometrics

-  Physiological

- Disciplines study similar phenomena

- Different perspectives

- Different methodology

- Well rounded account of human behavior


-  Professional Specialties

-  Clinical psychology

-  Counseling psychology

-  Educational and School psychology

-  IO psychology