Summary
Highlights
Wilhelm Wundt opened the first psychology laboratory in 1879, establishing psychology as a scientific discipline separate from philosophy. His approach, structuralism, aimed to break down conscious experience into basic elements using introspection, a systematic self-observation method. Though criticized for subjectivity, Wundt's work laid the foundation for modern psychology, influencing experimental methods and future approaches like the cognitive perspective.
Behaviorists believe behavior is learned from the environment, starting from a 'blank slate.' Classical conditioning, demonstrated by Pavlov, explains learning through association (e.g., dogs salivating to a bell). Operant conditioning, studied by Skinner, explains learning through consequences, using reinforcement (positive and negative) and punishment (positive and negative) to increase or decrease behaviors. This approach uses scientific methods but is criticized for animal research generalizability and environmental determinism.
Albert Bandura's Social Learning Theory emphasizes indirect learning through observation of others (modeling and imitation). Key concepts include identification with a role model, vicarious reinforcement (learning from observing others' rewards or punishments), and mediational cognitive processes (attention, retention, reproduction, motivation) that bridge behaviorism and cognitive psychology. Bandura's Bobo doll study supported this theory, though it faced criticism for artificiality and the age range of participants. It has practical applications in advertising and public health, offering a more complete view than pure behaviorism.
The cognitive approach focuses on internal mental processes like perception, attention, memory, and problem-solving. Since these are unobservable, psychologists make inferences based on behavior. It uses computer and theoretical models (e.g., multi-store model of memory) to explain information processing. Schemas, mental frameworks based on experience, help interpret information but can lead to distortions. Cognitive neuroscience combines this with biological approaches, using fMRI and PET scans to study brain structures' influence on mental processes. Strengths include practical applications in therapies (CBT), eyewitness testimony (cognitive interview), and understanding memory. However, it's criticized for being reductionist (computer analogy) and overlooking emotional influences.
The biological approach explains behavior through biological processes, assuming everything psychological is biological. Features include the genetic basis of behavior (studied via twin concordance rates, genotypes, and phenotypes), the influence of biological structures like the brain (localization of function, e.g., frontal lobe for decision making), neurochemistry (neurotransmitters like serotonin and dopamine affecting mood), and evolution and behavior (natural selection of traits like the rooting reflex). Supporting evidence comes from case studies like Phineas Gage and twin studies for OCD. It's praised for scientific methods and practical applications (drug treatments) but criticized for issues with case study generalizability, animal research, emphasizing nature over nurture, and biological determinism.
Sigmund Freud's psychodynamic approach focuses on the unconscious mind's influence on behavior. It divides the mind into conscious, preconscious, and unconscious, with the unconscious driving behavior and protecting the conscious self from anxiety. Personality is structured into the Id (pleasure principle), Superego (morality principle), and Ego (reality principle, mediator). Personality develops through five psychosexual stages (oral, anal, phallic, latency, genital), where unresolved conflicts can lead to fixation and adult personality issues. Defense mechanisms (repression, denial, displacement) are unconscious ways the ego manages conflict. It's praised for practical application in psychoanalysis and influencing developmental theories (attachment), supported by case studies like Little Hans, but criticized for lack of scientific rigor, unfalsifiability, and deterministic views.
Humanistic psychology, a 'third force,' emphasizes free will, holism, and subjective experiences, moving from mental illness to personal growth. Maslow's Hierarchy of Needs proposes that basic needs must be met before individuals can achieve self-actualization, an innate desire to reach full potential. Carl Rogers focused on personal growth through the self-concept (self-image, ideal self, self-esteem). Congruence (overlap between self-image and ideal self) is achieved through unconditional positive regard, while conditions of worth create incongruence. Client-centered therapy, based on genuineness, empathy, and unconditional positive regard, helps reduce incongruence. It uses qualitative methods for in-depth understanding and supports free will but is criticized for vague, untestable concepts and ethnocentrism (Western focus) in collectivist cultures.
Comparing approaches is crucial, often using issues and debates. For example, behaviorism is environmentally deterministic, while the biological approach is biologically deterministic; both ignore free will. Behaviorism supports nurture, biology supports nature, both neglecting their interaction. Both are reductionist (behaviorism to stimulus-response, biology to genes/neurotransmitters). Both use nomothetic approaches, overlooking individual differences. Research methods (scientific lab experiments vs. animal studies) and practical applications (desensitization vs. drug treatments) also offer comparison points. A free document for detailed comparison is available.