Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Transcript of Psychology
Functionalism formed as a reaction to the theories of the structuralist school of thought and was heavily influenced by the work of psychologist William James, including John Dewey and Harvey Carr. Functional psychology or functionalism refers to a general psychological philosophy that considers mental life and behavior in terms of active adaptation to the person's environment.
The word psychology literally means, "study of the soul" (ψυχή, psukhē, meaning "breath", "spirit", or "soul"; and -λογος -logos, translated as "study of" or "research").
is an academic and applied discipline that involves the scientific study of mental functions and behaviors.
In this field, a professional practitioner or researcher is called a psychologist and can be classified as a social, behavioral, or cognitive scientist. Psychologists attempt to understand the role of mental functions in individual and social behavior, while also exploring the physiological and neurobiological processes that underlie certain cognitive functions and behaviors. A
evaluates, diagnoses, treats, and studies behaviors and mental processes. Psychologists explore concepts such as perception, cognition, attention, emotion, phenomenology, motivation, brain functioning, personality, behavior, and interpersonal relationships.
Edward Bradford Titchener
He (1867-1927) was a British psychologist who studied under Wilhelm Wundt for several years. Titchener is best known for creating his version of psychology that described the structure of the mind;
Wilhelm Maximilian Wundt
A German physician (1832-1920), credited with introducing psychological discovery into a laboratory setting. Known as the "father of experimental psychology", he founded the first psychological laboratory, at Leipzig University, in 1879.
Some psychologists, such as clinical and counseling psychologists, provide mental health care, and some psychologists, such as social or organizational psychologists conduct research and provide consultation services.There are many different types of psychologists, as is reflected by the 56 different divisions of the American Psychological Association (APA).
is often used to represent the word or study of psychology
Structuralism in psychology refers to a theory of consciousness developed by Edward B. Titchener, and his mentor Wilhelm Wundt. It is a school of psychology sought to analyze the adult mind in terms of the simplest definable components and then to find how these components fit together to form more complex experiences as well as how they correlated to physical events.
Psychoanalysis is a set of psychological and psychotherapeutic theories and associated techniques, originally popularised by Austrian physician Sigmund Freud and stemming partly from the clinical work of Josef Breuer and others.
Sigmund Schlomo Freud
He (1856-1939) was an Austrian neurologist who became known as the founding father of psychoanalysis.
Behaviorism, is an approach to psychology that combines elements of philosophy, methodology, and theory.The primary tenet of behaviorism, as expressed in the writings of John B. Watson, B. F. Skinner, and others, is that psychology should concern itself with the observable behavior of people and animals, not with unobservable events that take place in their minds.
John Broadus Watson
He (1878-1958) was an American psychologist who established the psychological school of behaviorism. He conducted the controversial "Little Albert" experiment.
Burrhus Frederic "B. F." Skinner
He (1904-1990) was an American psychologist, behaviorist, author, inventor, and social philosopher. He was the Edgar Pierce Professor of Psychology at Harvard University from 1958 until his retirement in 1974.Skinner invented the operant conditioning chamber, also known as the Skinner Box. He was a firm believer of the idea that human free will was actually an illusion and any human action was the result of the consequences of that same action. If the consequences were bad, there was a high chance that the action would not be repeated; however if the consequences were good, the actions that lead to it would be reinforced. He called this the principle of reinforcement. He innovated his own philosophy of science called radical behaviorism
He (1842-1910) was an American philosopher and psychologist who was also trained as a physician. The first educator to offer a psychology course in the United States, while others have labeled him the "Father of American psychology". He is considered to be one of the greatest figures associated with the philosophical school known as pragmatism, and is also cited as one of the founders of the functional psychology.
He (1859-1952) was an American philosopher, psychologist, and educational reformer whose ideas have been influential in education and social reform. Dewey is one of the primary figures associated with philosophy of pragmatism and is considered one of the founders of functional psychology.
Charles Sanders Peirce
He (1839-1914) was an American philosopher, logician, mathematician, and scientist, sometimes known as "the father of pragmatism".
Humanistic psychology is a psychological perspective which rose to prominence in the mid-20th century in response to Sigmund Freud's psychoanalytic theory and B.F. Skinner's Behaviorism. This approach emphasizes an individual's inherent drive towards self-actualization and creativity. It typically holds that people are inherently good. It adopts a holistic approach to human existence and pays special attention to such phenomena as creativity, free will, and human potential. It encourages viewing ourselves as a "whole person" greater than the sum of our parts and encourages self exploration rather than the study of behavior in other people. Humanistic psychology acknowledges spiritual aspiration as an integral part of the human psyche. It is linked to the emerging field of transpersonal psychology.
Carl Ransom Rogers
He (1902-1987) was an influential American psychologist and among the founders of the humanistic approach (or client-centered approach) to psychology. The person-centered approach, his own unique approach to understanding personality and human relationships, found wide application in various domains such as psychotherapy and counseling (client-centered therapy), education (student-centered learning), organizations, and other group settings.
He (1884-1939) was an Austrian psychoanalyst, writer, and teacher. he was one of Sigmund Freud's closest colleagues for 20 years, a prolific writer on psychoanalytic themes, an editor of the two most important analytic journals, managing director of
's publishing house and a creative theorist and therapist.
Gestalt psychology or gestaltism, is a theory of mind and brain of the Berlin School; the operational principle of gestalt psychology is that the brain is holistic, parallel, and analog, with self-organizing tendencies. Gestalt psychology tries to understand the laws of our ability to acquire and maintain stable percepts in a noisy world. Gestalt psychologists stipulate that perception is the product of complex interactions among various stimuli.
The Berlin School of Experimental Psychology was headed by Carl Stumpf (a pupil of Franz Brentano and Hermann Lotze), a professor at the University of Berlin, where he founded the Berlin Laboratory of Experimental Psychology in 1893.
Among his pupils were Max Wertheimer, Kurt Koffka, Wolfgang Köhler, and Kurt Lewin.
Only after Köhler took over the direction of the psychology institute in 1922 did the Berlin School effectively become a school for Gestalt Psychology.
Christian von Ehrenfels
He (1859-1932) was an Austrian philosopher, and is known as one of the founders and precursors of Gestalt psychology.
Existentialism is a term applied to the work of certain late 19th- and 20th-century philosophers who shared the belief that philosophical thinking begins with the human subject—not merely the thinking subject, but the acting, feeling, living human individual. In existentialism, the individual's starting point is characterized by what has been called "the existential attitude", or a sense of disorientation and confusion in the face of an apparently meaningless or absurd world.
Søren Aabye Kierkegaard
He (1813-1855) was a Danish philosopher, theologian, poet, social critic, and religious author who is widely considered to be the first existentialist philosopher. Much of his philosophical work deals with the issues of how one lives as a "single individual", giving priority to concrete human reality over abstract thinking, and highlighting the importance of personal choice and commitment.
He (1889-1976) was a German philosopher known for his existential and phenomenological explorations of the "question of Being". Because Heidegger's discussion of ontology (the study of being) is rooted in an analysis of the mode of existence of individual human beings (Da-sein, or there-being), his work has often been associated with existentialism.
Rollo Reece May
He (1909-1994) was an American existential psychologist. He is often associated with both humanistic psychology and existentialist philosophy. He along with Viktor Frankl was a major proponent of "existential psychotherapy," which seeks to analyze the structure of human existence with the aim of understanding the reality underlying all situations of humans in crises ((1)). May was a close friend of the philosopher and theologian Paul Tillich, who also had a significant influence on his work.
Cognitive psychology is the study of mental processes such as "attention, language use, memory, perception, problem solving, and thinking." Much of the work derived from cognitive psychology has been integrated into various other modern disciplines of psychological study including social psychology, personality psychology, abnormal psychology, developmental psychology, educational psychology, and economics.
Positive psychology derives from Maslow's humanistic psychology. Positive psychology is a discipline that utilizes evidence-based scientific methods to study factors that contribute to human happiness and strength. Different from clinical psychology, positive psychology is concerned with improving the mental well-being of healthy clients.
Abraham Harold Maslow
He (1908-1970) was an American psychologist who was best known for creating Maslow's hierarchy of needs, a theory of psychological health predicated on fulfilling innate human needs in priority, culminating in self-actualization. He stressed the importance of focusing on the positive qualities in people, as opposed to treating them as a "bag of symptoms."
Social psychology is the study of how humans think about each other and how they relate to each other. Social psychologists study such topics as the influence of others on an individual's behavior and the formation of beliefs, attitudes, and stereotypes about other people.
He (1861-1931) was a psychologist at Indiana University. In 1898, he wrote what is now recognized as the first published study in the field of social psychology. His experiment was on the social facilitation effect.
Personality psychology is concerned with enduring patterns of behavior, thought, and emotion-commonly referred to as personality-individuals.
Industrial and organizational psychology (also known as I-O psychology or work psychology) is the scientific study of employees, workplaces, and organizations. Industrial and organizational psychologists contribute to an organization's success by improving the performance, satisfaction, safety, health and well-being of its employees. An I-O psychologist conducts research on employee behaviors and attitudes, and how these can be improved through hiring practices, training programs, feedback, and management systems. I-O psychologists also help organizations transition among periods of change and development. Industrial and organizational psychology is related to organizational behavior and human capital.
An applied science, I–O psychology is represented by Division 14 of the American Psychological Association (APA), known formally as the Society for Industrial and Organizational Psychology (SIOP).
Comparative psychology refers to the scientific study of the behavior and mental processes of non-human animals, especially as these relate to the phylogenetic history, adaptive significance and development of behavior.
Behavioral neuroscience, also known as biological psychology, biopsychology, or psychobiology is the application of the principles of biology (in particular neurobiology), to the study of physiological, genetic, and developmental mechanisms of behavior in human and non-human animals. It typically investigates at the level of nerves, neurotransmitters, brain circuitry and the basic biological processes that underlie normal and abnormal behavior. Most typically, experiments in behavioral neuroscience involve non-human animal models (such as rats and mice, and non-human primates) which have implications for better understanding of human pathology and therefore contribute to evidence-based practice.
Clinical psychology includes the study and application of psychology for the purpose of understanding, preventing, and relieving psychologically based distress or dysfunction and to promote subjective well-being and personal development.
Educational & School
Educational and school psychology is the study of how humans learn in educational settings, the effectiveness of educational interventions, the psychology of teaching, and the social psychology of schools as organizations.
Developmental psychology is the scientific study of changes that occur in human beings over the course of their life. Originally concerned with infants and children, the field has expanded to include adolescence, adult development, aging, and the entire lifespan. This field examines change across a broad range of topics including motor skills and other psycho-physiological processes; cognitive development involving areas such as problem solving, moral understanding, and conceptual understanding; language acquisition; social, personality, and emotional development; and self-concept and identity formation.
Developmental psychology examines issues such as the extent of development through gradual accumulation of knowledge versus stage-like development—and the extent to which children are born with innate mental structures, versus learning through experience. Many researchers are interested in the interaction between personal characteristics, the individual's behavior, and environmental factors including social context, and their impact on development; others take a more narrowly-focused approach.
Abnormal psychology is the branch of psychology that studies unusual patterns of behavior, emotion, and thought, which may or may not be understood as precipitating a mental disorder. Although many behaviours could be considered as abnormal, this branch of psychology generally deals with behavior in a clinical context. There is a long history of attempts to understand and control behavior deemed to be aberrant or deviant (statistically, morally or in some other sense), and there is often cultural variation in the approach taken. The field of abnormal psychology identifies multiple causes for different conditions, employing diverse theories from the general field of psychology and elsewhere, and much still hinges on what exactly is meant by "abnormal". There has traditionally been a divide between psychological and biological explanations, reflecting a philosophical dualism in regards to the mind body problem. There have also been different approaches in trying to classify mental disorders. Abnormal includes three different categories, they are subnormal, supernormal and paranormal. The science of abnormal psychology studies two types of behaviors: adaptive and maladaptive behaviors. Behaviors that are maladaptive suggest that some problem(s) exist, and can also imply that the individual is vulnerable and cannot cope with environmental stress, which is leading them to have problems functioning in daily life. Clinical psychology is the applied field of psychology that seeks to assess, understand and treat psychological conditions in clinical practice. The theoretical field known as 'abnormal psychology' may form a backdrop to such work, but clinical psychologists in the current field are unlikely to use the term 'abnormal' in reference to their practice. Psychopathology is a similar term to abnormal psychology but has more of an implication of an underlying pathology (disease process), and as such is a term more commonly used in the medical specialty known as psychiatry.
Cultural psychology is the study of how psychological and behavioral tendencies are rooted in and embodied in culture.The main tenet of cultural psychology is that mind and culture are inseparable and mutually constitutive, meaning that people are shaped by their culture and their culture is also shaped by them. As Richard Shweder, one of the major proponents of the field, writes, "Cultural psychology is the study of the way cultural traditions and social practices regulate, express, and transform the human psyche, resulting less in psychic unity for humankind than in ethnic divergences in mind, self, and emotion."
Richard Allan Shweder
He (1945-) is an American cultural anthropologist and a figure in cultural psychology.
Cross-cultural psychology is the scientific study of human behavior and mental processes, including both their variability and invariance, under diverse cultural conditions.
Cultural-historical psychology (also called the school of Vygotsky, sociocultural psychology, socio-historical psychology, activity theory, cultural psychology, cultural historical activity theory, and social development theory) is a psychological theory formed by Lev Vygotsky in the late 1920s, and further developed by his students and followers in Eastern Europe and worldwide. This theory focuses on how aspects of culture, such as values, beliefs, customs and skills, are transmitted from one generation to the next.
Lev Semyonovich Vygotsky
He (1896-1934) was a Soviet Belarusian psychologist, the founder of a theory of human cultural and biosocial development commonly referred to as cultural-historical psychology, and leader of the Vygotsky Circle.
Military psychology is the research, design and application of psychological theories and empirical data towards understanding, predicting and countering behaviours either in friendly or enemy forces or civilian population that may be undesirable, threatening or potentially dangerous to the conduct of military operations.
Forensic psychology is the intersection between psychology and the justice system. An important aspect of forensic psychology is the ability to testify in court as an expert witness, reformulating psychological findings into the legal language of the courtroom, providing information to legal personnel in a way that can be understood.
Environmental psychology is an interdisciplinary field focused on the interplay between humans and their surroundings. The field defines the term environment broadly, encompassing natural environments, social settings, built environments, learning environments, and informational environments.
Sport psychology is a interdisciplinary science that draws on knowledge from the fields of Kinesiology and Psychology. It involves the study of how psychological factors affect performance and how participation in sport and exercise affect psychological and physical factors. In addition to instruction and training of psychological skills for performance improvement, applied sport psychology may include work with athletes, coaches, and parents regarding injury, rehabilitation, communication, team building, and career transitions.
Kinesiology, also known as human kinetics, is the scientific study of human movement.
Evolutionary psychology is an approach in the social and natural sciences that examines psychological traits such as memory, perception, and language from a modern evolutionary perspective.
Political psychology is an interdisciplinary academic field dedicated to understanding politics, politicians and political behavior from a psychological perspective.Political psychology aims to understand interdependent relationships between individuals and contexts that are influenced by beliefs, motivation, perception, cognition, information processing, learning strategies, socialization and attitude formation.
Mathematical psychology is an approach to psychological research that is based on mathematical modeling of perceptual, cognitive and motor processes, and on the establishment of law-like rules that relate quantifiable stimulus characteristics with quantifiable behavior.
Experimental psychology refers to work done by those who apply experimental methods to the study of behavior and the processes that underlie it.Experimental psychologists employ human participants and animal subjects to study a great many topics, including, among others sensation & perception, memory, cognition, learning, motivation, emotion; developmental processes, social psychology, and the neural substrates of all of these.[
The American Psychological Association defines Quantitative Psychology as "the study of methods and techniques for the measurement of human attributes, the statistical and mathematical modeling of psychological processes, the design of research studies, and the analysis of psychological data".
Occupational health psychology (OHP) "concerns the application of psychology to improving the quality of work life, and to protecting and promoting the safety, health and well-being of workers."
Legal psychology involves empirical, psychological research of the law, legal institutions, and people who come into contact with the law. Legal psychologists typically take basic social and cognitive principles and apply them to issues in the legal system such as eyewitness memory, jury decision-making, investigations, and interviewing. The term "legal psychology" has only recently come into usage, primarily as a way to differentiate the experimental focus of legal psychology from the clinically-oriented forensic psychology.
Community psychology studies the individuals' contexts within communities and the wider society, and the relationships of the individual to communities and society. Community psychologists seek to understand the quality of life of individuals, communities, and society. Their aim is to enhance quality of life through collaborative research and action. Community psychology employ various perspectives within and outside of psychology to address issues of communities, the relationships within them, and related people's attitudes and behavior.
In psychology, anomalistic psychology is the study of human behaviour and experience connected with what is often called the paranormal, without the assumption that there is anything paranormal involved.
Media psychology seeks to understand how the media and the growing use of technology impacts how people perceive, interpret, respond, and interacts in a media rich world. Media psychologists typically focus on identifying potential benefits and negative consequences of various forms of technology and promote the development of positive media. This field of psychology investigates the types of psychological impact on humans caused by a wide range of media such as social media, online education, virtual classrooms, entertainment consulting, traditional media interviews, in providing on camera expertise, virtual and augmented reality therapies, consumer products, brand development, marketing, advertising, product placement and game theory.
Differential psychology studies the ways in which individuals differ in their behavior. This is distinguished from other aspects of psychology in that although psychology is ostensibly a study of individuals, modern psychologists often study groups or biological underpinnings of cognition.
Tactical psychology is "a sharp focus on what soldiers do once they are in contact with the enemy...on what a front-line soldier can do to win a battle". It combines psychology and historical analysis (the application of statistics to military historical data) to find out how tactics make the enemy freeze, flee or fuss, instead of fight. Tactical psychology examines how techniques like suppressive fire, combined arms or flanking reduce the enemy's will to fight.
Traffic psychology is a discipline of psychology that studies the relationship between psychological processes and the behavior of road users. In general, traffic psychology aims to apply theoretical aspects of psychology in order to improve traffic mobility by helping to develop and apply accident countermeasures, as well as by guiding desired behaviors through education and the motivation of road users.
Operational psychology is the use of psychological principles and skills to improve a military commander's decision making as it pertains to conducting combat and/or related operations.
Mathematical psychology is an approach to psychological research that is based on mathematical modeling of perceptual, cognitive and motor processes, and on the establishment of law-like rules that relate quantifiable stimulus characteristics with quantifiable behavior.
Applied psychology is the use of psychological principles and theories to overcome problems in real life situations.
Engineering psychology is the science of human behavior and capability, applied to the design and operation of systems and technology. As an applied field of psychology and an interdisciplinary part of ergonomics, it aims to improve the relationships between people and machines by redesigning equipment, interactions, or the environment in which they take place. The work of an engineering psychologist is often described as making the relationship more "user-friendly." Engineering psychology was created from within experimental psychology. Engineering psychology started during World War I (1914).
Margaret Floy Washburn
She (1871-1939) leading American psychologist in the early 20th century, was best known for her experimental work in animal behavior and motor theory development. She was the first woman to be granted a PhD in psychology (1894), and the second woman, after Mary Whiton Calkins, to serve as an APA President (1921).
American Psychological Association (APA)
The American Psychological Association (APA) is the largest scientific and professional organization of psychologists in the United States and Canada. It is the world's largest association of psychologists with around 137,000 members including scientists, educators, clinicians, consultants and students. The APA has an annual budget of around $115m. There are 54 divisions of the APA—interest groups covering different subspecialties of psychology or topical areas. The APA was founded in July 1892 at Clark University by a group of 26 men, the first president was G. Stanley Hall. It is affiliated with 60 state, territorial, and Canadian provincial associations.
Granville Stanley Hall
He (1844-1924) was a pioneering American psychologist and educator. His interests focused on childhood development and evolutionary theory. Hall was the first president of the American Psychological Association and the first president of Clark University.
Ivan Petrovich Pavlov
He (1849-1936) was a Russian physiologist known primarily for his work in classical conditioning. In 1870 he enrolled in the physics and mathematics faculty at the University of Saint Petersburg to take the course in natural science. Ivan Pavlov devoted his life to the study of physiology and sciences, making several remarkable discoveries and ideas that were passed on from generation to generation. He won the Nobel Prize for Physiology or Medicine in 1904.
She (1895-1982)was the sixth and last child of Sigmund Freud and Martha Bernays. Born in Vienna, she followed the path of her father and contributed to the newly born field of psychoanalysis. Alongside Melanie Klein, she may be considered the founder of psychoanalytic child psychology: as her father put it, child analysis 'had received a powerful impetus through "the work of Frau Melanie Klein and of my daughter, Anna Freud"'. Compared to her father, her work emphasized the importance of the ego and its ability to be trained socially.
Erik Homburger Erikson
He (1902-1994) was a German-born American developmental psychologist and psychoanalyst known for his theory on psychosocial development of human beings. He may be most famous for coining the phrase identity crisis. His son, Kai T. Erikson, is a noted American sociologist.
Melanie Reizes Klein
She (1882-1960) was an Austrian-born British psychoanalyst who devised novel therapeutic techniques for children that had an impact on child psychology and contemporary psychoanalysis. She was a leading innovator in theorizing object relations theory.
Donald Woods Winnicott
He (1896-1971) was an English paediatrician and psychoanalyst who was especially influential in the field of object relations theory. He was a leading member of the British Independent Group of the British Psychoanalytic Society, and a close associate of Marion Milner. He is best known for his ideas on the true self and false self, and the transitional object.
She (1885-1952) was a German psychoanalyst who practiced in the United States during her later career. Her theories questioned some traditional Freudian views. This was particularly true of her theories of sexuality and of the instinct orientation of psychoanalysis. She is credited with founding Feminist Psychology in response to Freud's theory of penis envy. She disagreed with Freud about inherent differences in the psychology of men and women, and she traced such differences to society and culture rather than biology. As such, she is often classified as Neo-Freudian.
Erich Seligmann Fromm
He (1900-1980) was a German social psychologist, psychoanalyst, sociologist, humanistic philosopher, and democratic socialist. He was associated with what became known as the Frankfurt School of critical theory.
Edward John Mostyn Bowlby
He (1907-1990) was a British psychologist, psychiatrist and psychoanalyst, notable for his interest in child development and for his pioneering work in attachment theory.
Edward Lee "Ted" Thorndike
He (1874-1949) was an American psychologist who spent nearly his entire career at Teachers College, Columbia University. His work on animal behavior and the learning process led to the theory of connectionism and helped lay the scientific foundation for modern educational psychology. He also worked on solving industrial problems, such as employee exams and testing. He was a member of the board of the Psychological Corporation and served as president of the American Psychological Association in 1912.
Clark Leonard Hull
He (1884-1952) was an influential American psychologist who sought to explain learning and motivation by scientific laws of behavior. Hull is known for his debates with Edward C. Tolman. He is also known for his work in drive theory. Hull spent the mature part of his career at Yale University, where he was recruited by the president and former-psychologist, James Rowland Angell. He performed research demonstrating that his theories could predict behavior.
Edward Chace Tolman
He (1886-1959) was an American psychologist. He was most famous for his studies on behavioral psychology.
He (1887-1967) was a German psychologist and phenomenologist who, like Max Wertheimer, and Kurt Koffka, contributed to the creation of Gestalt psychology.
He (1880-1941) was a Prague-born psychologist who was one of the three founders of Gestalt psychology, along with Kurt Koffka and Wolfgang Köhler.
Wertheimer obtained his PhD. in 1904 under Oswald Kulpe, and then began his intellectual career teaching in Frankfurt. For a short time he left Frankfurt to work at the Berlin Psychological Institute, but returned in 1929 as a full professor. Wertheimer eventually ended up at the New School for Social Research in New York, a position he held until his death.
Max Wertheimer is known for his work Productive Thinking, as well as his idea of Phi Phenomenon. Both contributed to his collaboration on Gestalt psychology.
He (1886-1941) was a German Psychologist. He was born and educated in Berlin. Along with Max Wertheimer and his close associates Wolfgang Kohler they established Gestalt psychology. Koffka’s interests were wide-ranging, and they included: Perception, hearing impairments in brain-damaged patients, Interpretation, Learning, and the extension of Gestalt theory to Developmental psychology.
He (1881-1966) was a Swiss psychiatrist and pioneer in the field of existential psychology. His grandfather (also named Ludwig Binswanger) was founder of the "Bellevue Sanatorium" in Kreuzlingen, and his uncle Otto Binswanger was a professor of psychiatry at the University of Jena.
He is considered the most distinguished of the phenomenological psychologists, and the most influential in making the concepts of existential psychology known in Europe and the United States.
He (1913-2007) was an American psychologist who in 1955 developed Rational Emotive Behavior Therapy (REBT). He held M.A. and Ph.D. degrees in clinical psychology from Columbia University and American Board of Professional Psychology (ABPP). He also founded and was the President of the New York City-based Albert Ellis Institute for decades. He is generally considered to be one of the originators of the cognitive revolutionary paradigm shift in psychotherapy and the founder of cognitive-behavioral therapies. Based on a 1982 professional survey of USA and Canadian psychologists, he was considered as the second most influential psychotherapist in history (Carl Rogers ranked first in the survey; Sigmund Freud was ranked third). Prior to his death, Psychology Today described him as the “greatest living psychologist.”
He (1925-) is a psychologist who is the David Starr Jordan Professor Emeritus of Social Science in Psychology at Stanford University. For almost six decades, he has been responsible for contributions to many fields of psychology, including social cognitive theory, therapy and personality psychology, and was also influential in the transition between behaviorism and cognitive psychology. He is known as the originator of social learning theory and the theoretical construct of self-efficacy, and is also responsible for the influential 1961 Bobo doll experiment.
A 2002 survey ranked Bandura as the fourth most-frequently cited psychologist of all time, behind B. F. Skinner, Sigmund Freud, and Jean Piaget, and as the most cited living one. Bandura is widely described as the greatest living psychologist, and as one of the most influential psychologists of all time.
Little Albert Experiment
Asch Conformity Experiment
10 Famous Psychological Experiments That Could Never Happen Today
The Bystander Effect Experiment
The Milgram Experiment
At Johns Hopkins University in 1920, John B. Watson conducted a study of classical conditioning, a phenomenon that pairs a conditioned stimulus with an unconditioned stimulus until they produce the same result. This type of conditioning can create a response in a person or animal towards an object or sound that was previously neutral. Classical conditioning is commonly associated with Ivan Pavlov, who rang a bell every time he fed his dog until the mere sound of the bell caused the dog to salivate. Watson tested classical conditioning on a 9-month old baby he called Albert B. The young boy started the experiment loving animals, particularly a white rat. Watson started pairing the presence of the rat with the loud sound of a hammer hitting metal. Albert began to develop a fear of the white rat as well as most animals and furry objects. The experiment is considered particularly unethical today because Albert was never desensitized to the phobias that Watson produced in him. (The child died of an unrelated illness at age 6, so doctors were unable to determine if his phobias would have lasted into adulthood.
Nowadays, the American Psychology Association has a Code of Conduct in ace when it comes to ethics in psychological experiments. Experimenters must adhere to various rules pertaining to everything from confidentiality to consent to overall beneficence. Review boards are in place to enforce these ethics. But the standards were not always so strict, which is how some of the most famous studies in psychology came about.
Solomon Asch tested conformity at Swarthmore College in 1951 by putting a participant in a group of people whose task was to match line lengths. Each individual was expected to announce which of three lines was the closest in length to a reference line. But the participant was place in a group of actors, who were all told to give the correct answer twice then switch to each saying the same incorrect answer. Asch wanted to see whether the participant would conform and start to give the wrong answer as well, knowing that he would otherwise be single outlier. Thirty-seven of the 50 participants agreed with the incorrect group despite physical evidence to the contrary. Asch used deception in his experiment without getting informed consent from his participants, so his study could not be replicated today.
Some psychological experiments that were designed to test the bystander effect are considered unethical by today's standards. In 1968, John Darley and Bibb Latane developed an interest in crime witnesses who did not take action. They were particularly intrigued by the murder of Kitty Genovese, a young woman whose murder was witnessed by many, but still not prevented.The pair conducted a study at Columbia University in which they would give a participant a survey and leave him alone in a room to fill out the paper. Harmless smoke would start to seep into the room after a short amount of time. The study showed that the solo participant was much faster to report the smoke than participants who had the exact same experience, but were in a group. The studies became progressively unethical by putting participants at risk of psychological harm. Darley and Latane played a recording of an actor pretending to have a seizure in the headphones of a person, who believed he or she was listening to an actual medical emergency that was taking place down the hall. Again, participants were much quicker to react when they thought they were the sole person who could hear the seizure.
Yale psychologist Stanley Milgram hoped to further understand how so many people came to participate in the cruel acts of the Holocaust. He theorized that people are generally inclined to obey authority figures, posing the question, "Could it be that Eichmann and his million accomplices in the Holocaust were just following orders? Could we call them all accomplices?" In 1961, he began to conduct experiments of obedience. Participants were under the impression that they were part of a study of memory. Each trial had a pair divided into "teacher" and "learner", but one person as an actor, so only one was a true participant. The drawing was rigged so that the participant always took the role of "teacher". The two were moved into separate rooms and the "teacher" was given instructions. He or she pressed a button to shock the "learner" each time an incorrect answer was provided. These shocks would increase in voltage each time. Eventually, the actor would start to complain followed by more and more desperate screaming. Milgram learned that the majority of participants followed orders to continue delivering shocks despite the clear discomfort of the "learner". Had the shocks existed and been at the voltage they were labeled, the majority would have actually killed the "learner" in the next room. Having this fact revealed to the participant after the study concluded would be a clear example of psychological harm.
Harlow's Monkey Experiment
In the 1950s, Harry Harlow of the University of Wisconsin tested infant dependency using rhesus monkeys in his experiments rather than human babies. The monkey was removed from its actual mother which was replaced with two "mothers", one made of cloth and one made of wire. The cloth "mother" served no purpose other than its comforting feeling whereas the wire "mother" fed the monkey through a bottle. The monkey spent e majority of his day next to the cloth "mother" and only around one hour a day next to the wire "mother", despite the association between the wire model and food. Harlow also used intimidation to prove that the monkeys found the cloth "mother" to be superior. He would scare the infants and watch as the monkeys ran towards the cloth model. Harlow also conducted experiments which isolated monkeys from other monkeys in order to show that those who did not learn to be part of the group at a young age were unable to assimilate and mate when they get older. Harlow's experiments ceased in 1985 due to APA rules against the mistreatment of animals as well as humans. However, Department of Psychiatry Chair Ned H. Kalin, M.D. of the University of Wisconsin School of Medicine and Public Health has recently begun similar experiments that involve isolating infants monkeys and exposing them to frightening stimuli. He hopes to discover data on human anxiety, but is meeting with resistance from animal welfare organizations and the general public.
The ethics of Martin Sigman's experiments on learned helplessness would also be called into question today due to his mistreatment of animals. In 1965, Seligman and his team used dogs as subjects to test how one might perceive control. The group would place a dog on one side of a box that was divided in half by a low barrier. Then they would administer a shock, which was avoidable if the dog jumped over the barrier to the other half. Dogs quickly learned how to prevent themselves from being shocked. Seligman's group then harnessed a group of dogs and randomly administered shocks, which were completely unavoidable. The next day, these dogs were placed in the box with the barrier. Despite new circumstances that would have allowed them to escape the painful shocks, these dogs did not even try to jump over the barrier, they only cried and did not jump at all, demonstrating learned helplessness.