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In psychology, cognitivism is a theoretical approach in understanding the mind, which argues that mental function can be understood by quantitative, positivist and scientific methods, and that such functions can be described as information processing models.
Theoretical approach
Cognitivism has two major components, one methodological, the other theoretical. Methodologically, cognitivism adopts a
positivist approach and the belief that psychology can be (in principle) fully explained by
the use of experiment, measurement and the
Cognitivism became the dominant force in psychology in the late-20th century, replacing behaviorism as the most popular paradigm for understanding mental function. Cognitive psychology is not a wholesale refutation of behaviorism, but rather an expansion that accepts that mental states exist. This was due to the increasing criticism towards the end of the 1950s of behaviorist models. One of the most notable criticisms was Chomsky's argument that language could not be acquired purely through conditioning, and must be at least partly explained by the existence of internal mental states.
The main issues that interest cognitive psychologists are the inner mechanisms of human thought and the processes of knowing. Cognitive psychologists have attempted to throw light on the alleged mental structures that stand in a causal relationship to our physical actions.
Criticisms of psychological cognitivism
Cognitivism has been criticised in a number of ways.
Phenomenologists and hermeneutic philosophers have criticised the positivist approach of cognitivism for reducing individual meaning to what they perceive as measurements stripped of all significance. They argue that by representing experiences and mental functions as measurements, cognitivism is ignoring the context (cf contextualism) and, therefore, the meaning of these measurements. They believe that it is this personal meaning of experience gained from the phenomenon as it is experienced by a person (what Heidegger called being in the world) which is the fundamental aspect of our psychology that needs to be understood: therefore they argue that a context-free psychology is a contradiction in terms. They also argue in favour of holism: that positivist methods cannot be meaningfully used on something which is inherently irreducible to component parts. Hubert Dreyfus has been the most notable critic of cognitivism from this point of view. Humanistic psychology draws heavily on this philosophy, and practitioners have been among the most critical of cognitivism.
In the 1990s, various new theories emerged and challenged cognitivism and the idea that thought was best described as computation. Some of these new approaches, often influenced by phenomenological and post-modernist philosophy, include situated cognition, distributed cognition, dynamicism, embodied cognition. Some thinkers working in the field of artificial life (for example Rodney Brooks) have also produced non-cognitivist models of cognition.
The idea that mental functions can be described as information processing models has been criticised by philosopher John Searle and mathematician Roger Penrose who both argue that computation has some inherent shortcomings which cannot capture the fundamentals of mental processes.
- Penrose uses Gödel's incompleteness theorem (which states that there are mathematical truths which can never be proven in a sufficiently strong mathematical system; any sufficiently strong system of axioms will also be incomplete) and Turing's halting problem (which states that there are some things which are inherently non-computable) as evidence for his position.
- Searle has developed two arguments, the first (well known through his Chinese Room thought experiment) is the 'syntax is not semantics' argument—that a program is just syntax, understanding requires semantics, therefore programs (hence cognitivism) cannot explain understanding. It should be noted that such an argument presupposes the controversial notion of a private language. The second, which Searle now prefers but is less well known, is his 'syntax is not physics' argument—nothing in the world is intrinsically a computer program except as applied, described or interpreted by an observer, so either everything can be described as a computer and trivially a brain can but then this does not explain any specific mental processes, or there is nothing intrinsic in a brain that makes it a computer (program). Detractors of this argument might point out that the same thing could be said about any concept-object relation, and that the brain-computer analogy can be a perfectly useful model if there is a strong isomorphism between the two. Both points, Searle claims, refute cognitivism.
Another argument against cognitivism is the problems of Ryle's Regress or the homunculus fallacy. Cognitivists have offered a number of arguments to refute these attacks.
See also
- Cognition
- Cognitive psychology
- Cognitive science
- Computationalism
- Consciousness
- Critical psychology
- Educational psychology
- Enactivism
- Phenomenology
- Symbol grounding
- Important publications in cognitivism
Further reading
- Costall, A. and Still, A. (eds) (1987) Cognitive Psychology in Question. Brighton: Harvester Press Ltd. ISBN 0-7108-1057-1
- Searle, J. R. Is the brain a digital computer APA Presidential Address
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