Introduction to Psychology: Affect, Behaviour, Cognition
The Study of A.B.C. - Affect, Behaviour, Cognition
Introduction to Psychology
Definition of Psychology: The scientific study of mind and behaviour.
It is a very broad field, encompassing many different elements, sub-disciplines, and methodologies.
Psychology as a Science
Branches of Psychology:
Practice (also known as clinical psychology).
Research.
Common Thread: Both branches share a scientific approach to understanding.
It is data-driven: data is used to formulate theories, and theories are used to make predictions.
Empirical Methods:
Scientists use empirical methods, which are processes for:
Collecting, organizing, analyzing, and interpreting data.
Drawing conclusions based on results.
Communicating interpretations and results.
Scientific Method: A set of assumptions, rules, and procedures that scientists use to conduct empirical research.
Science is Imperfect:
Scientific procedures are the best available tool for drawing objective conclusions, but they do not guarantee correct conclusions.
"Old facts" are frequently updated or discarded as newer data and facts emerge. This inherent self-correction is a fundamental "feature, not a bug," ensuring the most accurate conclusions over time, even if it sometimes leads to public distrust.
Challenges in Psychology
Major Goal: To predict thoughts, emotions, and behaviour by understanding their causes.
Predictions are difficult due to three main challenges:
Individual Variation:
There are significant physical and psychological differences among people (individual differences).
Consequently, predictions are often probabilistic, meaning it's difficult to make highly accurate predictions about specific individuals or their exact courses of action.
However, psychology can draw meaningful conclusions about populations as a whole.
Multiple Causes:
Behaviour is generally produced by many interacting factors.
These factors often operate at different levels of explanation (e.g., genetic, personal, socio-cultural) and in varied combinations.
It is important to be skeptical of reductionist accounts of behaviour, which oversimplify by attributing behaviour to a single cause.
Causes May Be Outside Our Awareness (Unconscious):
People are often unaware of the actual reasons for their behaviours, making understanding them intrinsically challenging.
Unconscious processes are recognized as an important and integral part of the study of psychology.
Evolution of the Discipline
Psychology has evolved from an area of speculation to a more objective and scientific approach to answering questions.
While methodologies and understanding have changed, certain fundamental questions have remained constant:
Nature vs. Nurture: Addresses whether genes (biological makeup) or the environment (experiences) are most influential in determining behaviours or explaining individual differences.
Today, most psychologists agree that both play a crucial and complex interacting role, often making it difficult to disentangle their precise contributions.
Free Will vs. Determinism: Explores the extent of control individuals have over their behaviours versus actions being guided by external or internal forces beyond their conscious control.
Accuracy vs. Inaccuracy: Pertains to how well humans process information.
It is understood that humans are not inherently built to be perfectly accurate information processors.
Conscious vs. Unconscious Processing: Investigates the degree to which individuals are aware of their behaviours and the causes behind them.
Many actions are determined by processes of which we are not consciously aware.
Schools of Thought
Early Thinkers:
Plato ( BCE):
Believed many things were innate; people were born with certain capabilities, knowledge, and preferences (nativism).
Aristotle ( BCE):
Believed individuals were born as a "blank slate" and that all knowledge was acquired through learning and experience (empiricism).
Both philosophers explored fundamental questions that persist in psychology today, such as nature vs. nurture and the existence of free will.
Structuralism:
Goal: To identify the basic elements or structures of psychological experience.
Core Belief: It was possible to analyze these basic elements and investigate experiences scientifically.
Key Method: Introspection, where participants were asked to describe their exact experiences.
Also utilized newly invented tools to measure reaction time.
Impact: It was rigorous and scientific, differing significantly from previous speculative approaches and setting psychology on a scientific path. It demonstrated that mental events could be quantified.
Limitations: The key methodology of introspection had limitations, as participants could not always explain how they performed tasks, thereby demonstrating the importance of unconscious processes.
Functionalism:
Goal: To understand why humans have developed specific psychological aspects.
Core Belief: One's thinking is directly relevant to one's behaviour.
Influence: Heavily influenced by Charles Darwin's theory of evolution, which posited that physical characteristics evolved because they were useful (functional). Functionalists extended this idea to psychological characteristics.
Psychodynamic Psychology:
Approach: Focuses on the role of unconscious thoughts, feelings, and memories in understanding human behaviour.
Associated with: Sigmund Freud, who believed many problems stemmed from the effects of painful childhood memories that had been repressed and forgotten.
Therapeutic Method: Psychoanalysis (including talk therapy and dream analysis) was developed to help patients uncover and remember these traumas.
Scientific Rigor: Generally not considered very scientifically rigorous.
Lasting Contributions: Despite its limitations, it highlighted:
The importance of unconscious behaviour.
The significant impact of early childhood experiences.
The concept of therapy as a means of assisting people.
These contributions remain central to psychology today.
Behaviourism:
Premise: Since the mind cannot be objectively studied, the focus should be solely on observable behaviour.
Model: Environmental stimuli are observed "going in," and behaviour is observed "coming out." Environmental stimuli are seen as producing responses/behaviour.
Focus: Principles of learning.
Implications: Heavily emphasizes the role of nurture over nature and aligns with a deterministic view over free will, suggesting behaviour is largely a product of learned responses to environmental cues.
Cognitive Psychology:
Focus: Studies how people think.
Core Belief: Thinking has a powerful influence over behaviour, and the mind cannot be ignored because people actively interpret the stimuli they experience.
Goal: To understand behaviour more deeply by considering how stimuli are evaluated and interpreted.
Modern Influence: Extremely influential today, particularly with recent technological advances.
Neuroimaging (e.g., fMRI) uses various technologies to provide pictures of the living brain's structure and function.
These images allow researchers to observe information processing as it happens in the brain, and assess the impact of injury and disease.
Social-Cultural Psychology:
Focus: Examines how social situations and our cultures influence thinking and behaviour.
Inquiries: Explores how people perceive themselves and others, and how individuals influence each other's behaviour.
Influence: Considers both conscious influences (e.g., peer pressure) and unconscious influences.