Home » History of Psychology » Continued
In the 1890s, the physician Sigmund Freud developed and applied a method
of uncovering repressed wishes known as psychoanalysis. Freud's understanding
of the mind was largely based on interpretive methods and introspection
(a technique also championed by Wundt), but was particularly focused on
treatment of individuals' psychological problems. Freud's theories were
notable for their emphasis on the roles of the individual's unconscious
and sexuality. While Freud's work remains scientifically controversial
- with many modern-day psychologists and philosophers of science seeing
it as being unscientific (being arguably unfalsifiable) - there is no
question of the huge and lasting cultural influence it has had.
Partly as a reaction to the subjective and introspective nature of psychology
at the time, behaviourism became popular as a guiding psychological theory.
Championed by psychologists such as John B. Watson, Edward Thorndike and
B. F. Skinner, behaviourism argued that psychology should be a science
of behaviour, not the mind, and rejected the idea of internal mental states
such as beliefs, desires or goals, believing all behaviour and learning
to be a reaction to the environment. In Watson's 1913 paper Psychology
as the Behaviourist Views It, he argued that psychology "is a purely
objective experimental branch of natural science", "introspection
forms no essential part of its methods..." and "The behaviourist...
recognizes no dividing line between man and brute".
Behaviourism was the dominant model in psychology for much of the early
20th century, largely due to the creation and successful application (not
least of which in advertising) of conditioning theories as scientific
models of human behaviour.
However, it became increasingly clear that although behaviourism had
made some important discoveries, it was deficient as a guiding theory
of human behaviour. Noam Chomsky's review of Skinner's book Verbal Behaviour
(that aimed to explain language acquisition in a behaviourist framework)
is considered one of the major factors in the ending of behaviourism's
reign. Chomsky demonstrated that language could not purely be learnt from
conditioning, as people could produce sentences unique in structure and
meaning that couldn't possibly be generated solely through experience
of natural language, implying that there must be internal states of mind
that behaviourism rejected as illusory. Similarly, work by Albert Bandura
showed that children could learn by social observation, without any change
in overt behaviour, and so must be accounted for by internal representations.
The rise of computer technology also promoted the metaphor of mental
function as information processing. This, combined with a scientific approach
to studying the mind, as well as a belief in internal mental states, led
to the rise of cognitivism as the dominant model of the mind.
Links between brain and nervous system function were also becoming common,
partly due to the experimental work of people like Charles Sherrington
and Donald Hebb, and partly due to studies of people with brain injury
(see cognitive neuropsychology). With the development of technologies
for accurately measuring brain function, neuropsychology and cognitive
neuroscience have become some of the most active areas in contemporary
psychology.
With the increasing involvement of other disciplines (such as philosophy,
computer science and neuroscience) in the quest to understand the mind,
the umbrella discipline of cognitive science has been created as a means
of focusing such efforts in a constructive way.
However, not all psychologists have been happy with what they perceive
as mechanical models of the mind and human nature.
Carl Jung, a one-time follower and contemporary of Freud, was instrumental
in introducing notions of spirituality into Freudian psychoanalysis (Freud
had rejected religion as a mass delusion).
Alfred Adler, after a brief association with Freud's discussion circle,
left to forum his own discipline, called Individual (indivisible) Psychology.
His influence on contemporary psychology has been considerable, with many
approaches borrowing fragments of his theory. A recent rebirth of his
legacy, Classical Adlerian Psychology, combines Adler's original theory
of personality, style of psychotherapy, and philosophy of living, with
Abraham Maslow's vision of optimal functioning.
Humanistic psychology emerged in the 1950s and has continued as a reaction
to positivist and scientific approaches to the mind. It stresses a phenomenological
view of human experience and seeks to understand human beings and their
behaviour by conducting qualitative research. The humanistic approach
has its roots in existentialist and phenomenological philosophy and many
humanist psychologists completely reject a scientific approach, arguing
that trying to turn human experience into measurements strips it of all
meaning and relevance to lived existence.
Some of the founding theorists behind this school of thought are Abraham
Maslow who formulated a hierarchy of human needs, Carl Rogers who created
and developed client centred therapy, and Fritz Perls who helped create
and develop Gestalt therapy.
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