The Cognitive Approach (AQA A-Level Psychology): Revision Notes
The Cognitive Approach
Introduction to the cognitive approach
The cognitive approach investigates internal mental processes such as perception, memory, attention and consciousness. Since these processes occur within the mind and cannot be directly observed, psychologists must infer their operation through studying observable human behaviour.
Since we cannot directly observe what happens inside the mind, cognitive psychologists face the challenge of studying invisible processes. This is where the concept of inference becomes crucial - drawing logical conclusions about mental processes based on what we can actually observe in behaviour.
To support this indirect study of mental processes, cognitive psychologists employ theoretical models and computer models. These models provide visual representations of complex mental processes and serve as the foundation for research within cognitive psychology.
The study of internal mental processes
Internal mental processes refer to the mental operations that take place during thinking. These include:
- Perception - how we convert sensory information into a usable format
- Attention - how we select what to focus on mentally
- Memory - how we store and retrieve information for future use
- Language - how we create meaningful communication with others
- Problem-solving - how we develop new solutions to challenges
Cognitive psychologists recognise that these processes cannot be directly observed, so they use inference to understand human mental experience through studying observable behaviours.
The role of schema
Schema theory represents an information-processing model that explains how perception and memory are influenced by our existing mental frameworks. Schemas are organised mental structures containing information that help us interpret and respond to new situations.
Example: How Schemas Work in Practice
A classroom schema might include expectations about whiteboards, desks, chairs, books, pens and a teacher. When you walk into a new classroom, your schema helps you immediately understand:
- Where to sit (at a desk)
- Who is likely the teacher (person at the front)
- What materials you might need (pen and paper)
- What behaviour is expected (listening and taking notes)
As we mature, our schemas become more sophisticated, and adults develop numerous schemas to handle most situations they encounter.
Schemas demonstrate top-down information-processing because they create expectations about what will occur, rather than processing every detail individually. This allows us to interpret ambiguous situations by "filling in the gaps" using our existing knowledge, enabling us to function effectively even when information is incomplete.
However, schemas can contribute to errors in information-processing, potentially leading to prejudice and discrimination when they create overly rigid expectations about people or situations.
The use of theoretical and computer models
Theoretical models
Theoretical models are visual representations of internal mental processes that help researchers simplify and study complex mental operations. These models typically appear as diagrams or flowcharts demonstrating how information flows between different mental systems.
Notable examples include:
- The multi-store model (Atkinson and Shiffrin, 1968) - a theoretical model explaining memory processes
- The working memory model (Baddeley and Hitch, 1974) - a theoretical model of short-term memory
Computer models
The development of computers in the 1960s introduced computer models to psychology for explaining various mental processes. These models draw analogies between human mental processes and computer operations.
The Computer-Mind Analogy
This analogy has been particularly influential in understanding memory systems by comparing:
- Long-term memory to a computer's hard disc storage
- Short-term (working) memory to a computer's RAM (Random Access Memory)
Computer models of memory have proven particularly valuable in developing artificial intelligence (AI) systems.
The emergence of cognitive neuroscience
Cognitive neuroscience represents a relatively recent field that bridges cognitive and biological approaches to psychology. This development resulted from advanced techniques for scanning the living brain whilst it actively processes information.
Cognitive neuroscience employs non-invasive brain scanning methods including:
- PET scans (positron emission tomography)
- MRI (magnetic resonance imaging)
- fMRI (functional magnetic resonance imaging)
These techniques identify which brain regions are active during specific internal mental processes.
Brain imaging discoveries
Key Brain-Memory Connections Discovered
Brain scans have revealed important distinctions between different types of long-term memory:
- Hippocampus - associated with episodic memory
- Temporal lobe - associated with semantic memory
- Cerebellum and motor cortex - associated with procedural memories
Brain imaging has also established connections between mental health conditions and brain activity, such as linking obsessive compulsive disorder (OCD) with the parahippocampal gyrus.
Evaluation of the cognitive approach
Strengths
Scientific credibility through neuroimaging evidence
Recent advances in neuroimaging technology, particularly fMRI, have provided empirical support for theoretical models by demonstrating brain activity for specific cognitive functions under controlled conditions. The increasing sophistication and availability of such techniques represents a clear strength of the cognitive approach.
Recognition of human complexity
The cognitive approach acknowledges the complexity of human behaviour and avoids reductionist explanations of mental processes. Whilst cognition relies on biological foundations in the brain, the precise nature of consciousness, memory and perception cannot be reduced purely to biological processes, as demonstrated by lived human experience.
Real-world applications
Cognitive research has generated numerous practical applications. Memory research and studies on misleading information have reduced reliance on eyewitness testimony in court cases and prompted major reforms in police procedures, including the development of cognitive interviews. Understanding thinking patterns has also improved treatment for mental health conditions like depression through therapies such as CBT. These developments demonstrate that cognitive research contributes meaningfully to contemporary society across multiple professional fields.
Limitations
Debate over neuroimaging interpretation
Whilst neuroimaging provides correlational evidence of brain activity during cognitive tasks, the precise meaning of this activity remains disputed. Some researchers argue these techniques offer strong scientific foundations, whilst others contend that neuroimaging evidence is merely correlational and does not constitute true scientific validation of theories or models.
Neglect of other behavioural dimensions
The cognitive approach cannot capture all aspects of human behaviour under its framework. Research in this field has tended to overlook other important dimensions of behaviour, particularly emotion and motivation, which play substantial roles in human experience and decision-making.
Key Points to Remember:
- The cognitive approach studies internal mental processes through inference from observable behaviour
- Schemas are mental frameworks that help us interpret situations but can lead to processing errors
- Theoretical and computer models provide visual representations of complex mental processes
- Cognitive neuroscience uses brain scanning to identify which brain regions are active during mental processes
- The approach has strong scientific credibility and real-world applications but may neglect emotional and motivational factors in human behaviour