The key assumptions of the cognitive approach are that thoughtprocesses can and should be studied scientifically and that the mind works like a computer. It has input from the senses which it then processes to produce outputs such as language and specific behaviours.
Cognitive psychology uses theoretical models, such as the multi storemodel of memory, and looks at behaviour in a series of distinctsteps. The informationprocessingmodel is one way that psychologists apply the idea of computation to the human mind by comparing it to a computer.
Schemas are a cognitive representation of our ideas about a person or a situation and are formed through experiences. They allow us to predict what may happen or be expected of us. They mean we can process a lot of information quickly, but schemas can also lead to distortions in our perception.
Cognitive neuroscience is a more recentadaption to the cognitive approach. This approach looks for a biologicalbasis for thought processes combining cognitive and biological psychology. This emerged in the 1950s however GeorgeMiller first used the term cognitive neuroscience in 1971.MRI and PET scans have enabled scientists to systematicallyobserve and describe neurologicalbasis of mentalprocesses.
A strength of the cognitive approach is that it uses scientificmethodology. Much of the research into internal mental processes uses lab studies which are highly controlled. This enables researchers to infer what cognitive processes are taking place in a reliable and objective way. This is particularly true with the emergence of cognitive neurosciences, as this uses biological means of measuring cognitive processes, further enhancing its scientific credibility.
Elaborate on abstract concepts as a weakness for cognitivism
However, a weakness of the cognitive approach is that it uses abstractconcepts.Schemas and theoretical models are abstract concepts as they are difficult to scientificallyevidence. This means the approach can lack falsifiability as we cannotdisprove their existence. The methods used to investigate internal mental processes are also reliant on inference, which leads to subjectiveinterpretation.
Elaborate on case studies as a weakness of cognitivism
There are some studies that use case studies, such as HM, but these are highlyunusualindividuals and so are not generalisable to other 'normal' people. Therefore, the approach could be considered to lack scientificcredibility. However, cognitive neuroscience, does begin to do this in a more scientific manner through the use of brain scanning techniques such as fMRI.
Elaborate on overlooking emotions as a weaknesses for cognitivism
Another weakness of the cognitive approach is that theoreticalmodels may oversimplifycomplex processes. For example, the role of emotion in humans is sometimes overlooked, a form of 'machinereductionism'. For example, anxiety can affect the accuracy of eyewitness testimony. Therefore, a computeranalogy is not a valid way of explaining mental processes and reduces the overall validity of the approach.
Elaborate on reductionism as a weakness for cognitivism
However, it could be argued that the cognitive approach is reductionist. It suggests that people are mechanistic and lack free will, whereas most of us would prefer to believe we have choices in our behaviour. Therefore, this suggests that the approach does not acknowledge the concept of free will, although it doesrecogniseinternal processes, which behaviourism does not and so could be seen as an improvement on their approach