Buzz
Psychology has long been regarded as the neglected cousin in the realm of science. There are valid reasons for this perception. For starters, the average person tends to associate psychology with the quirky behaviors of fictional therapists in movies and television shows. Additionally, everyone considers themselves an 'amateur psychologist,' as most of us have experienced and shaped our own behaviors, emotions, and thoughts, even though we may not have directly encountered complex subjects like black holes, DNA, or atoms. Moreover, few realize that, historically, there were efforts to establish psychology as a science of human nature, comparable to the rigor of physics or chemistry. Unfortunately, contemporary psychology remains a fragmented field, with various sub-disciplines, some of which are more meaningful than others. The ten individuals I’ve chosen, based on my semi-educated judgment, are those who have made the most significant contributions to shaping psychology into the field it is today, for better or worse.
10. Karl Lashley 1890-1958
Karl Lashley remains a pivotal figure in the field of psychology for his groundbreaking work in linking the brain to behavior. His experiments with rats provided a foundational understanding of memory and brain function, even though his conclusions sparked debate. While controversial, his research inspired a new generation of psychologists and physiologists to explore the relationship between brain structure and behavior. Today, many areas of experimental psychology continue to delve into this vital connection between brain function and behavior.
9. B.F. Skinner 1904-1990
B.F. Skinner stands as one of the most recognizable names in psychology, extending his influence beyond the academic world. This recognition is largely due to his engaging personality, his talent for writing (originally aspiring to be a novelist), and his bold, confrontational approach. Skinner was firm in his belief that his psychological framework was the only valid one and had little tolerance for opposing viewpoints. Despite his arrogance, few individuals in history can claim to have created the foundational vocabulary for an entire field. Terms like 'operant conditioning,' 'positive reinforcement,' and 'shaping' were all popularized by Skinner. His contributions went beyond just terminology; Skinner played a crucial role in establishing behaviorism as a dominant psychological theory. Between 1930 and 1950, behaviorism essentially was psychology in the United States. His simple principles, centered on the interaction between organisms and their environments, offered an explanation for a wide range of behaviors, without needing to invoke concepts such as 'thought,' 'emotion,' or 'unconscious mind.'
8. Jean Piaget 1896-1980
My first cheat: Piaget was not a psychologist. His academic background was in natural science. Growing up in Switzerland, he had a fascination with fossils, shells, and birds. However, after earning his degree, Piaget became captivated by the idea of developing an ‘embryology’ of intelligence. Initially, he intended to work on this project for only a few years, but he ended up dedicating six decades to observing children and their developmental capabilities, ultimately formulating his highly influential theory of cognitive development. Piaget's theories profoundly impacted developmental psychology, educational psychology, and cognitive psychology. Ironically, despite his intellectual interest in the children he studied, Piaget, possibly due to his own unusual childhood, never really connected with them emotionally.
7. Abraham Maslow 1908-1970
Maslow, an American psychologist, was well-acquainted with the two dominant forces in mid-twentieth-century psychology: psychoanalysis and behaviorism. He believed neither fully captured the essence of human experience. Behaviorism, grounded in animal research, seemed irrelevant to understanding human behavior. Psychoanalysis, on the other hand, appeared to focus solely on psychotic individuals rather than healthy ones. Naturally reserved, Maslow was so convinced of these shortcomings that he spearheaded the development of a new psychological approach he termed 'third-force' psychology. His method rejected much of the existing research, focusing instead on the pursuit of mental health and well-being, paving the way for a variety of therapeutic approaches that emerged in the 1960s and 1970s, some of questionable value. Depending on one's viewpoint, Maslow either expanded the reach of psychology or weakened its overall credibility.
6. Max Wertheimer 1880-1943
Wertheimer, a German psychologist, was captivated by the fact that what we perceive is not always what is actually there. For instance, when watching a movie, we are actually seeing a series of still images shown rapidly in sequence, yet our mind interprets this as continuous movement. Wertheimer believed that our minds played a role in transforming these still images into the illusion of motion. His fascination with this phenomenon led him to develop Gestalt psychology, which focused on perception, cognitive insight, learning, and dynamic social systems. Due to the rise of Nazism, Wertheimer was forced to leave Germany. Upon arriving in America, he introduced the only true competition to the behaviorist ideas that dominated at the time. The principles of Gestalt psychology were crucial in the formation of social psychology and cognitive psychology. While Gestalt psychology is no longer a distinct discipline, many of its key concepts have been absorbed into other areas of psychological research.
5. Alfred Binet 1857-1911
In the late 1800s, intelligence was viewed as a psychological trait passed down through generations. The challenge was finding a reliable way to measure this quality. Binet, a French psychologist, was approached by the French government to develop tests that could distinguish between children of average ability and those who needed additional educational support. In 1905, Binet and his colleague, Theodore Simon, introduced their first version of the Binet-Simon Test of Intelligence. The idea was both simple and brilliant: to assess whether a child was 'less intelligent,' first observe what a 'normal' child could do, then see how many of those tasks the child being evaluated could accomplish. This concept remains the foundation for all modern intelligence tests. Binet’s original test made its way to the United States, where it was revised into the Stanford-Binet Intelligence Test, which is still in use today. More significantly, Binet’s work introduced the idea of effectively measuring psychological traits, sparking a global testing craze. Unfortunately, Binet would likely be horrified by the way testing has evolved.
4. Wilhelm Wundt 1832-1920
Wundt may be the most significant psychologist that few people recognize. His lasting impact didn't stem from his specific psychological theories (he sought to uncover the ‘elements of thought’), nor from his experimental methods (his most notable contribution to methodology was probably ‘introspection,’ where participants reported their mental reactions to various stimuli, though the process was highly subjective). Wundt is revered as the founder of psychology. He was the first to claim the title of psychologist and to understand that his work was part of a groundbreaking new field that had not yet been named. While serving as the chair of philosophy at the University of Leipzig in Germany, Wundt began his pioneering psychological experiments, most likely around 1879. His research was so influential that, for a time, Germany became the epicenter of psychology (until a few world wars disrupted that). In the late 1800s, studying psychology inevitably led you to Germany, and many early psychologists proudly traced their intellectual heritage to Wundt.
3. William James 1842-1910
James was an American psychologist who wasn't fond of the title. Morton Hunt, a science writer, referred to him as the ‘psychologist malgre lui,’ or the reluctant psychologist. James saw himself more as a philosopher than a psychologist and rarely engaged in psychological experiments. He was unimpressed by Wilhelm Wundt's work, and in his later years, he turned his attention to religion and spiritualism. However, I place him in the top position for one key reason: in 1890, he authored ‘Principles of Psychology,’ a book that is still in print today. It presents ideas that seem remarkably modern for a book over 100 years old. James essentially laid out the foundation of modern psychology in this book. Wundt had proposed a psychology focused mainly on senses and perception, dismissing the idea that psychology could address higher-order processes like learning or problem-solving. James disagreed, and in his ‘Principles,’ he introduced the idea that psychology could cover topics such as emotions, habits, consciousness, self, adaptation, and learning. Many ideas in behaviorism, as well as concepts like ‘self-esteem,’ ‘self-concept,’ clinical psychology, and biopsychology, have their roots in James’ work. There are few topics in psychology that James didn’t foresee in some form. Interestingly, James himself wasn’t satisfied with the book. He wrote to his publisher, calling it ‘a loathsome, distended, tumefied, bloated, dropsical mass, testifying to nothing but two facts: 1st, that there is no such thing as a science of psychology, and 2nd, that W. J. is an incapable.’
2. Sigmund Freud 1856-1939
Here he is: the most famous psychologist in history, and yet another cheat. Freud wasn’t a psychologist; he was a psychiatrist (and yes, there’s a difference between the two). It’s hard to overstate the influence of Freud’s ideas on psychology and culture. His terms like ‘ego,’ ‘id,’ ‘libido,’ and others have become part of everyday language, and his name is synonymous with therapeutic techniques that aim to uncover the damage done by early childhood experiences and the idea that dreams are mere masks for primal desires. What might surprise the general public is that in modern psychology, Freud’s theories aren’t taken very seriously. Most acknowledge that his ideas lack empirical foundation and were more the product of Freud’s highly imaginative and creative mind. So why is he so well-known? Whole books have been written on this, but I would argue his position here is because of a simple, yet revolutionary idea for his time: that mental disorders could be treated psychologically. Before Freud, mental disorders were seen as the result of physical issues (and some still are). Freud offered compelling anecdotal evidence for the psychological origins and treatment of many mental health problems.
1. John Watson 1878-1958
Few renowned individuals have emerged from such humble and troubled beginnings. John Watson was the child of an alcoholic father who abandoned his family and a deeply religious mother who insisted that he become a minister. Growing up in South Carolina, Watson seemed to be heading toward a life of delinquency. For reasons unknown, possibly driven by the desire to appease his mother, Watson made a surprising decision to attend college. He later graduated from the University of Chicago, earning its first-ever Ph.D. in psychology. Unhappy with the prevailing psychological theories of the time, Watson strongly believed that psychology should focus solely on observable behavior. In 1912, he introduced his ideas to the field, sweeping away outdated methodologies in favor of his own. B.F. Skinner, a prominent figure in psychology, built much of his success on the foundation laid by Watson. Watson is also infamous for his “Little Albert” experiment and, even more so, for his affair with his research assistant, Rosalie Raynor. This scandal led to his dismissal from academia in 1920 (due to the societal norms of the era). Like any skilled behaviorist, Watson transitioned into the advertising industry for the remainder of his career.
